欢迎访问ic37.com |
会员登录 免费注册
发布采购

US3010ACW 参数 Datasheet PDF下载

US3010ACW图片预览
型号: US3010ACW
PDF下载: 下载PDF文件 查看货源
内容描述: 5位可编程同步降压控制器IC [5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC]
分类和应用: 控制器
文件页数/大小: 11 页 / 77 K
品牌: UNISEM [ UNISEM ]
 浏览型号US3010ACW的Datasheet PDF文件第2页浏览型号US3010ACW的Datasheet PDF文件第3页浏览型号US3010ACW的Datasheet PDF文件第4页浏览型号US3010ACW的Datasheet PDF文件第5页浏览型号US3010ACW的Datasheet PDF文件第6页浏览型号US3010ACW的Datasheet PDF文件第7页浏览型号US3010ACW的Datasheet PDF文件第8页浏览型号US3010ACW的Datasheet PDF文件第9页  
US3010/3010A
5 BIT PROGRAMMABLE SYNCHRONOUS BUCK
CONTROLLER IC
PRELIMINARY DATASHEET
FEATURES
Dual Layout Compatible with SC1152
Designed to meet Intel specification of VRM8.2
& VRM8.3 for Pentium II™
On board DAC programs the output voltage
from 1.3V to 3.5V (US3010) & 1.8V to 3.5V for
US3010A
Loss less Short Circuit Protection
Synchronous operation allows maximum effi-
ciency
Patented architecture allows fixed frequency
operation as well as 100% duty cycle during
dynamic load
Over Voltage Protection Output
Soft Start
High current totem pole driver for direct driv-
ing of the external Power MOSFET
Power Good function
DESCRIPTION
The US3010 family of controller ICs are specifically de-
signed to meet Intel specification for Pentium II™ and
Pentium Pro™ microprocessor applications as well as
the next generation P6 family processors. These prod-
ucts feature a patented topology that in combination
with a few external components as shown in the typical
application circuit ,will provide in excess of 16A of out-
put current for an on- board DC/DC converter while auto-
matically providing the right output voltage via the 5 bit
internal DAC .These devices also feature,
loss less cur-
rent sensing by using the Rds-on of the high side
Power MOSFET as the sensing resistor,
a Power Good
window comparator that switches its open collector out-
put low when the output is outside of a
±10%
window
and an OVP output. Other features of the device are ;
Undervoltage lockout for both 5V and 12V supplies , an
external programmable soft start function as well as pro-
gramming the oscillator frequency by using an external
capacitor.
APPLICATIONS
Pentium II & Pentium Pro™ processor DC to DC
converter application
Low cost Pentium with AGP
TYPICAL APPLICATION
L1
L2
Q1
C5
C3
R3
R5
R2
R4
Q2
R6
R7
R9
C8
R8
R10
C10
5V
C1
C7
C4
C6
12V
R12
R13
R1
12
V12
9 NC
2
V5
6
CS+
8
HDrv
5
CS-
11
LDrv
10
Gnd
15
Vfb
En 14
OutEn
Power Good
C11
US3010
13 SS/BstH
C2
D4
16
D3
17
D2
18
D1
19
D0
20
NC/
PGndH
7
Ct/
AGnd
1
PGd 4
OVP
3
VID4
VID3
VID2
VID1
VID0
OVP
3010app1-1.1
R11
C9
Notes: Pentium II and Pentium Pro are
trade marks of Intel Corp.
PACKAGE ORDER INFORMATION
Ta (°C)
0 TO 70
0 TO 70
Rev. 1.1
5/18/98
Device
US3010CW
US3010ACW
Package
20 pin Plastic SOIC WB
20 pin Plastic SOIC WB
VID Voltage Range
1.3V to 3.5V
1.8V to 3.5V
4-1