TPS60210, TPS60211, TPS60212, TPS60213
REGULATED 3.3 V, LOW RIPPLE CHARGE PUMP
WITH ULTRALOW OPERATING CURRENT
SLVS296 − JUNE 2000
features
D
Compact Converter Solution in UltraSmall
D
10-Pin MSOP With Only Four External
Capacitors Required
Evaluation Module Available
(TPS60210EVM-167)
D
Regulated 3.3-V Output Voltage From a
D
D
D
D
D
D
·
1.8-V to 3.6-V Input Voltage Range
UltraLow Operating Current in Snooze
Mode, Typical 2
µA
With up to 2-mA Output
Current
Less Than 5-mV
(PP)
Output Voltage Ripple
Achieved With Push-Pull Topology
Integrated Low-Battery and Power-Good
Detector
Switching Frequency Can Be Synchronized
to External Clock Signal
Extends Battery Usage With up to 90%
Efficiency and 35-µA Quiescent Current
Easy-To-Design, Low Cost, Low EMI Power
Supply Since No Inductors Are Used
applications
D
Replaces DC/DC Converters With Inductors
in Battery-Powered Applications Like:
− Two Battery Cells to 3.3-V Conversion
− MSP430 Ultralow-Power Microcontroller
and Other Battery Powered
Microprocessor Systems
− Glucose Meters and Other Medical
Instruments
− MP3 Portable Audio Players
− Backup-Battery Boost Converters
− Cordless Phones, PDAs
description
The TPS6021x step-up, regulated charge pumps generate a 3.3-V
±4%
output voltage from a 1.8-V to 3.6-V
input voltage. These devices are typically powered by two alkaline, NiCd, or NiMH battery cells or by one primary
lithium MnO2 (or similar) coin cell and operate down to a minimum supply voltage of 1.6 V. Continuous output
current is a minimum of 100 mA for the TPS60210 and TPS60211, and 50 mA for the TPS60212 and TPS60213,
all from a 2-V input.
TPS60210
PEAK OUTPUT CURRENT
vs
INPUT VOLTAGE
350
300
250
INPUT
1.6 V to 3.6 V
Ci
2.2
µ
F
R1
TPS60210
7
IN
OUT
5
R3
LBI
LBO
4
C1
1
µ
F
3
9
ON/OFF
10
OUTPUT
3.3 V
Co
2.2
µ
F
Low Battery
Warning
1
R2
C1+
C1−
SNOOZE
GND
2
C2+
C2−
6
8
C2
1
µ
F
IO − Output Current − mA
200
150
100
50
0
1.6
Figure 1. Typical Application Circuit With
Low-Battery Warning
2.0
2.4
2.8
3.2
3.6
VI − Input Voltage − V
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
