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  • 北京元坤伟业科技有限公司

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  • MIC94161YCS-TR
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产品型号MIC94161YCS-TR的概述

MIC94161YCS-TR的概述 MIC94161YCS-TR是一款高性能的低压线性稳压器,由Microchip Technology公司设计制造。该芯片以其出色的电流驱动能力与温度稳定性,广泛应用于移动设备、电子消费品、以及各种自动化控制系统。MIC94161YCS-TR具备多种保护特性,如过流保护、过热保护等,确保了电路的安全与可靠。 这种线性稳压器特别适合于要求低压输入和高电流输出的场合,能够将输入电压转换为稳定的输出电压,以供后续的电路逻辑或功率元件使用。MIC94161YCS-TR不仅支持宽范围的输入电压,且在负载变化时能够迅速响应,保证输出电压的稳定性,这使得它成为现代电子设备电源管理中的理想选择。 详细参数 MIC94161YCS-TR的主要参数包括: - 输入电压范围:1.5V至5.5V - 输出电压:固定的1.6V、1.8V、2.5V、3.3V等多种选择 - 最大输...

产品型号MIC94161YCS-TR的Datasheet PDF文件预览

MIC94161/2/3/4/5  
3A High-Side Load Switch  
with Reverse Blocking  
General Description  
Features  
The MIC94161/2/3/4/5 is a family of high-side load  
switches designed to operate from 1.7V to 5.5V input  
voltage. The load switch pass element is an internal  
14.5mΩ RDSON N-Channel MOSFET which enables the  
device to support up to 3A of continuous current.  
Additionally, the load switch supports 1.5V logic level  
control and shutdown features in a tiny 1.5mm × 1mm  
6-ball WLCSP package.  
1.5mm × 1mm 6-ball WLCSP package  
14.5mΩ RDSON  
1.7V to 5.5V input voltage range  
3A continuous operating current  
Reverse current flow blocking (no “body diode”)  
Internal level shift for CMOS/TTL control logic  
Ultra-low quiescent current  
The MIC9416x provides reverse current protection when  
the device is disabled. The device will not allow the flow of  
current from the output to the input when the device is  
turned OFF. Additionally, the MIC94161 features  
overvoltage protection to protect the load when the input  
voltage is above 4.55V, as well as a precise enable  
threshold which keeps the MIC94161 in the default OFF  
state until the EN pin rises above 1.15V.  
Micropower shutdown current  
Soft-start: MIC94161/4/5 (2.7ms)  
Load discharge circuit: MIC94162/4  
Ultra-fast turn-off time  
Junction operating temperature from 40°C to +125°C  
Applications  
Solid state drives (SSD)  
Smart phones and tablets  
Personal media players (PMP)  
Ultra mobile PCs  
Portable instrumentation  
GPS modules  
The MIC94161/2/3/4/5 operating voltage range makes  
them ideal for Lithium-ion and NiMH/NiCad/Alkaline  
battery-powered systems, as well as non-battery-powered  
applications. The devices provide low quiescent current  
and low shutdown current to maximize battery life.  
Datasheets and support documentation are available on  
Micrel’s web site at: www.micrel.com.  
Datacom equipment  
Typical Application  
MIC94161 (2.7ms Soft Start with OVP)  
MIC94163 (Ultra-Fast Turn On)  
MIC94165 (2.7ms Soft Start)  
MIC94162 (Ultra-Fast Turn On with Auto Discharge)  
MIC94164 (2.7ms Soft Start with Auto Discharge)  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
Revision 1.1  
March 14, 2014  
Micrel, Inc.  
MIC94161/2/3/4/5  
Ordering Information  
Part Number  
Marking  
OVP  
Turn-On Time  
Active Discharge Package  
MIC94161YCS  
MIC94162YCS  
MIC94163YCS  
MIC94164YCS  
MIC94165YCS  
1Q  
2Q  
3Q  
4Q  
ZQ  
Yes  
No  
No  
No  
No  
2.7ms  
60µs  
No  
Yes  
No  
1.5mm × 1mm 6-Ball WLCSP  
1.5mm × 1mm 6-Ball WLCSP  
60µs  
1.5mm × 1mm 6-Ball WLCSP  
1.5mm × 1mm 6-Ball WLCSP  
1.5mm × 1mm 6-Ball WLCSP  
2.7ms  
2.7ms  
Yes  
No  
Pin Configuration  
6-Ball 1.5mm × 1mm WLCSP (CS)  
(Top View)  
Pin Description  
Pin Number  
A1, B1  
C1  
Pin Name  
Pin Function  
VOUT  
GND  
VIN  
Source of N-channel MOSFET.  
Ground.  
A2, B2  
Input Supply: Drain of N-channel MOSFET.  
Enable (Input): Active-high control input for switch. Internal 2MΩ pull-down resistor. Output will be  
off if this pin is left floating.  
C2  
EN  
Revision 1.1  
March 14, 2014  
2
Micrel, Inc.  
MIC94161/2/3/4/5  
Absolute Maximum Ratings(1)  
Operating Ratings(2)  
Input Voltage (VIN)........................................... 0.3V to +6V  
Enable Voltage (VEN) ...................................... 0.3V to +6V  
Continuous Drain Current (ID)(3) .....................................±3A  
Storage Temperature (Ts) .........................55°C to +150°C  
ESD Rating(4)..................................................................2kV  
Input Voltage (VIN)...........................................+1.7 to +5.5V  
Junction Temperature (TJ) ........................40°C to +125°C  
Package Thermal Resistance  
1.5mm × 1mm 6-Ball WLCSP (θJA) .................108°C/W  
Electrical Characteristics  
TA = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C , unless noted.  
Parameter  
General  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Units  
5.5  
1.5  
Operating Input Voltage Range  
VIN  
V
V
1.7  
Enable Threshold Voltage  
(MIC94161)  
VENTH  
VIN = 1.7V to 5.5V , IOUT = 250μA  
1.15  
Logic Low, OFF; VIN = 1.8V to 5.5V;  
0.375  
I
OUT = 250μA; 40˚C ≥ TJ ≤ 85˚C  
Logic High, ON; VIN = 1.7V to 5.5V;  
OUT = 250μA; 40˚C ≥ TJ ≤ 125˚C  
Enable Threshold Voltage  
(MIC94162/3/4/5)  
VENTH  
V
1.2  
I
Enable Input Current  
IEN  
IQ  
VIN = VEN = 3.6V ; IOUT = 0  
2
4
80  
55  
35  
1
µA  
µA  
µA  
µA  
µA  
µA  
Quiescent Current (MIC94161)  
Quiescent Current (MIC94162/3)  
Quiescent Current (MIC94164/5)  
Shutdown Current  
VIN = VEN = 3.6V ; IOUT = 0  
40  
25  
15  
0.1  
0.1  
IQ  
VIN = VEN = 3.6V ; IOUT = 0  
IQ  
VIN = VEN = 3.6V ; IOUT = 0  
ISD  
ILEAK  
VIN = 5.5V ; VEN = 0V ; IOUT = Open  
VIN = 5.5V ; VEN = 0V ; IOUT = Short  
OFF State Leakage Current  
1
Reverse Leakage Current  
(MIC94161,3,5)  
ILEAKR  
VIN = 0V ; VOUT = 5.5V ; VEN = 0V  
0.1  
1
µA  
VIN = 5.5V ; VEN = 1.5V ; IOUT = 3A  
VIN = 4.5V ; VEN = 1.5V ; IOUT = 3A  
VIN = 3.6V ; VEN = 1.5V ; IOUT = 3A  
VIN = 2.7V ; VEN = 1.5V ; IOUT = 3A  
VIN = 1.8V ; VEN = 1.5V ; IOUT = 3A  
VIN = 1.7V ; VEN = 1.5V ; IOUT = 3A  
14.5  
15.5  
17.5  
21  
N-Channel ON-Resistance  
RDS(ON)  
mΩ  
34  
40  
Overvoltage Protection Threshold  
(MIC94161)  
4.5  
5
VOVP  
RAD  
VIN = VEN ; IOUT = 0; VIN rising  
4.75  
200  
V
Active Discharge Resistance  
(MIC94162/4)  
400  
VIN = 3.6V ; ITEST = 1mA ; VEN = 0V  
Ω
Notes:  
1. Exceeding the absolute maximum ratings may damage the device.  
2. The device is not guaranteed to function outside its operating ratings.  
3. With thermal contact to PCB (see Application Information).  
4. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kin series with 100pF.  
Revision 1.1  
March 14, 2014  
3
 
 
 
 
Micrel, Inc.  
MIC94161/2/3/4/5  
Electrical Characteristics (Continued)  
TA = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C , unless noted.  
Parameter  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Units  
Timing Characteristics  
VIN = 3.6V ; RLOAD = 1.2Ω ;  
COUT = 200μF ; VEN = 1.5V  
Turn-On Delay Time (MIC94162/3)  
Turn-On Rise Time (MIC94162/3)  
tON  
tr  
tON  
tr  
tOFF  
tf  
10  
60  
µs  
µs  
VIN = 3.6V ; RLOAD = 1.2Ω ;  
COUT = 200μF ; VEN = 1.5V  
Turn-On Delay Time  
(MIC94161/4/5)  
VIN = 3.6V ; RLOAD = 1.2Ω ;  
0.4  
2.7  
25  
ms  
ms  
µs  
COUT = 200μF ; VEN = 1.5V  
Turn-On Rise Time  
(MIC94161/4/5)  
VIN = 3.6V ; RLOAD = 1.2Ω ;  
COUT = 200μF ; VEN = 1.5V  
VIN = 3.6V ; RLOAD = 1.2Ω ;  
Turn-Off Delay Time  
Turn-Off Fall Time  
COUT = 200μF ; VEN = 1.5V  
VIN = 3.6V ; RLOAD = 1.2Ω ;  
500  
µs  
COUT = 200μF ; VEN = 1.5V  
Revision 1.1  
March 14, 2014  
4
Micrel, Inc.  
MIC94161/2/3/4/5  
Timing Diagrams  
Figure 1. Output Voltage Rise and Fall time Measurements  
Figure 2. Output Voltage Turn On and Turn Off Measurements  
Revision 1.1  
March 14, 2014  
5
Micrel, Inc.  
MIC94161/2/3/4/5  
Typical Characteristics  
On Resistance  
vs. Temperature  
Voltage Drop  
vs. Output Current  
RDSON  
vs. Input Voltage  
35  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
40  
35  
30  
25  
20  
15  
10  
5
VIN = 1.7V  
30  
25  
VIN = 2.7V  
VIN = 3.6V  
20  
VIN = 5.5V  
15  
10  
VIN = 1.7V  
T = 25°C  
VIN = 3.6V  
VIN = 5.5V  
5
IOUT = 3A  
0
-40 -20  
0
20  
40  
60  
80  
100 120  
1
10  
100  
1000  
10000  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
TEMPERATURE (°C)  
OUTPUT CURRENT (mA)  
INPUT VOLTAGE (V)  
Enable Threshold vs.  
Enable Threshold vs.  
Enable Threshold vs.  
Input Voltage (MIC94162/3/4/5)  
Temperature (MIC94162/3/4/5)  
Input Voltage (MIC94161)  
800  
750  
700  
650  
600  
550  
500  
450  
400  
800  
750  
700  
650  
600  
550  
500  
1.35  
1.34  
1.33  
1.32  
1.31  
1.3  
1.29  
1.28  
1.27  
VIN = 3.6V  
T = 25°C  
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
-40 -20  
0
20  
40  
60  
80 100 120  
1.5  
2
2.5  
3
3.5  
4
4.5  
5
INPUT VOLTAGE (V)  
TEMPERATURE (°C)  
INPUT VOLTAGE (V)  
Quiescent Current vs.  
Quiescent vs.  
Quiescent vs.  
Input Voltage (MIC94161)  
Input Voltage (MIC94162/3)  
Input Voltage (MIC94164/5)  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
45  
40  
35  
30  
25  
20  
15  
10  
5
VEN = 1.5V  
VEN = 1.5V  
VEN = 1.5V  
0
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
QUIESCENT CURRENT (µA)  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
Revision 1.1  
March 14, 2014  
6
 
Micrel, Inc.  
MIC94161/2/3/4/5  
Typical Characteristics (Continued)  
Quiescent Current vs.  
Quiescent Current vs.  
Quiescent Current vs.  
Temperature (MIC94161)  
Temperature (MIC94162/3)  
Temperature (MIC94164/5)  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
60  
50  
40  
30  
20  
10  
0
40  
35  
30  
25  
20  
15  
10  
5
VIN = 3.6V  
VIN = 3.6V  
VIN = 3.6V  
0
-40 -20  
0
20  
40  
60  
80  
100 120  
-40 -20  
0
20  
40  
60  
80  
100 120  
-40 -20  
0
20  
40  
60  
80  
100 120  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
OVP Threshold vs.  
TON Delay vs.  
Rise Time vs.  
Temperature (MIC94161)  
Input Voltage (MIC94162/3)  
Input Voltage (MIC94162/3)  
4.7  
45  
40  
35  
30  
25  
20  
15  
10  
5
250  
200  
150  
100  
50  
4.69  
4.68  
4.67  
4.66  
4.65  
4.64  
4.63  
IOUT = 100mA  
COUT = 10µF  
IOUT = 100mA  
COUT = 10µF  
IOUT = 100mA  
0
0
-40 -20  
0
20  
40  
60  
80 100 120  
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
INPUT VOLTAGE (V)  
TEMPERATURE (°C)  
INPUT VOLTAGE (V)  
TON Delay vs.  
Input Voltage (MIC94161/4/5)  
2000  
1800  
1600  
1400  
1200  
1000  
800  
IOUT = 100mA  
COUT = 10µF  
600  
400  
200  
0
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
INPUT VOLTAGE (V)  
Revision 1.1  
March 14, 2014  
7
Micrel, Inc.  
MIC94161/2/3/4/5  
Functional Characteristics  
Revision 1.1  
March 14, 2014  
8
Micrel, Inc.  
MIC94161/2/3/4/5  
Maximum Current vs.  
Ambient Temperature  
(1" Square Copper)  
Application Information  
The MIC94161/2/3/4/5 is a family of high-side load  
switches designed to operate from 1.7V to 5.5V input  
voltage. The load switch pass element is an internal  
14.5mΩ RDSON N-Channel MOSFET which enables the  
device to support up to 3A of continuous current.  
Additionally, the load switch supports 1.5V logic level  
control and shutdown features in a tiny 1.5mm × 1mm  
6-ball WLCSP package.  
3.5  
3
2.5  
2
1.5  
1
VIN = 5v  
VIN = 4v5  
VIN = 3v6  
VIN=2v5  
The MIC9416x provides reverse current protection when  
the device is disabled. The device will not allow the flow  
of current from the output to the input when the device is  
turned OFF. Additionally, the MIC94161 features  
overvoltage protection to protect the load when the input  
voltage is above 4.55V, as well as a precise enable  
threshold which keeps the MIC94161 in the default OFF  
state until the EN pin rises above 1.15V.  
0.5  
0
-60 -40 -20  
0
20 40 60 80 100 120 140  
AMBIENT TEMPERATURE (°C)  
Figure 3. Safe Operating Area (SOA) Graph  
Power Dissipation Considerations  
The MIC94162/3 features rapid turn on for applications  
that require quick startup time. The MIC94161/4/5  
provides a slew rate controlled soft-start turn-on of 2.7ms.  
The soft-start feature is provided to prevent an in-rush  
current event from pulling down the input supply voltage.  
As with all power switches, the current rating of the  
switch is limited mostly by the thermal properties of the  
package and the PCB it is mounted on. There is a simple  
ohms law type relationship between thermal resistance,  
power dissipation and temperature, which are analogous  
to an electrical circuit:  
The MIC94162/4 feature an active load discharge circuit  
which switches in a 200Ω load when the switch is  
disabled to automatically discharge a capacitive load.  
An active pull-down on the enable input keeps the  
MIC94161/2/3/4/5 in a default OFF state until the enable  
pin is pulled above 1.2V. Internal level shift circuitry  
allows low voltage logic signals to switch higher supply  
voltages. The enable voltage can be as high as 5.5V and  
is not limited by the input voltage.  
Power Switch SOA  
Figure 4. Simple Electrical Circuit  
The safe operating area (SOA) curve represents the  
boundary of maximum safe operating current and  
maximum safe operating junction temperature.  
From this simple circuit we can calculate VX if we know  
ISOURCE, VZ and the resistor values, RXY and RYZ using  
Equation 1:  
Figure 3 illustrates the SOA for various input voltages,  
with the package mounted on a typical 1 layer, 1 square  
inch copper board.  
VX = ISOURCE (RXY + RYZ) + VZ  
Eq. 1  
Thermal circuits can be considered using these same  
rules and can be drawn similarly by replacing current  
sources with power dissipation (in watts), resistance with  
thermal resistance (in °C/W) and voltage sources with  
temperature (in °C).  
Revision 1.1  
March 14, 2014  
9
 
 
Micrel, Inc.  
MIC94161/2/3/4/5  
junction temperature of 125°C, in this case can be 30%  
higher (see the “On Resistance vs. Temperature” graph  
in the Typical Characteristics section):  
RSW(MAX) = 27mΩ  
Eq. 3  
Therefore:  
RISE = (3A2 × 27mΩ) × 108°C/W = 26.2°C  
Figure 5. Simple Thermal Circuit  
Now replacing the variables in the equation for VX, one  
can find the junction temperature (TJ) from power  
dissipation, ambient temperature and the known thermal  
resistance of the PCB (RθCA) and the package (RθJC).  
T
TJ = TRISE + TA = 26.2°C + 80°C = 106.2°C  
PDISS is calculated as ISW2 × RSW(MAX). RθJC is found in the  
operating ratings section of the datasheet and RθCA (the  
PCB thermal resistance) values for various PCB copper  
areas is discussed in the document Designing with Low  
Dropout Voltage Regulators available from the Micrel  
website.  
This is below the maximum 125°C.  
Example:  
A switch is intended to drive a 3A load and is placed on a  
printed circuit board which has a ground plane area of at  
least 25mm × 25mm (625mm2). The voltage source is a  
Li-ion battery with a lower operating threshold of 3V and  
the ambient temperature of the assembly can be up to  
80°C.  
Summary of variables:  
ISW = 3A  
VIN = 3V to 4.2V  
TA = 80°C  
RθJA = 108°C/W  
P
DISS = ISW2 x RSW  
The worst case switch resistance (RSW) at the lowest VIN  
of 3V is not available in the datasheet, so the next lower  
value of VIN is used, as shown in Equation 2  
R
SW @ 2.7V = 21mΩ  
Eq. 2  
If this were a figure for worst case RSW for 25°C, an  
additional consideration is to allow for the maximum  
Revision 1.1  
March 14, 2014  
10  
Micrel, Inc.  
MIC94161/2/3/4/5  
Package Information(5) and Recommended Landing Pattern  
1.5mm × 1mm 6-Ball WLCSP  
Note:  
5. Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com.  
Revision 1.1  
March 14, 2014  
11  
 
Micrel, Inc.  
MIC94161/2/3/4/5  
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA  
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com  
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This  
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,  
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual  
property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability  
whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties  
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.  
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product  
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical  
implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A  
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully  
indemnify Micrel for any damages resulting from such use or sale.  
© 2013 Micrel, Incorporated.  
Revision 1.1  
March 14, 2014  
12  
配单直通车
MIC94161YCS-TR产品参数
型号:MIC94161YCS-TR
生命周期:Active
包装说明:VFBGA, BGA6,2X3,20
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:8 weeks
风险等级:1
内置保护:OVER VOLTAGE
输入特性:SCHMITT TRIGGER
接口集成电路类型:BUFFER OR INVERTER BASED PERIPHERAL DRIVER
JESD-30 代码:R-XBGA-B6
长度:1.5 mm
端子数量:6
最高工作温度:125 °C
最低工作温度:-40 °C
输出特性:OPEN-SOURCE
输出电流流向:SOURCE
最大输出电流:3 A
输出极性:TRUE
封装主体材料:UNSPECIFIED
封装代码:VFBGA
封装等效代码:BGA6,2X3,20
封装形状:RECTANGULAR
封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
座面最大高度:0.63 mm
最大压摆率:0.08 mA
最大供电电压:5.5 V
最小供电电压:1.7 V
表面贴装:YES
温度等级:AUTOMOTIVE
端子形式:BALL
端子节距:0.5 mm
端子位置:BOTTOM
断开时间:25 µs
接通时间:400 µs
宽度:1 mm
Base Number Matches:1
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