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TPS60200, TPS60201, TPS60202, TPS60203
SLVS274A – MARCH 2000 – REVISED APRIL 2016
TPS6020x Regulated 3.3 V, 100-mA Low-Ripple Charge Pump Low Power DC/DC Converters
1 Features
•1 Regulated 3.3-V Output Voltage With up to 100-mA Output Current From a 1.8-V to 3.6-V Input Voltage
• 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 Supply Current
• Reliable System Shutdown Because Output Capacitor Is Discharged When Device Is Disabled
• Easy-to-Design, Low-Cost, Low-EMI Power Supply Since No Inductors Are Used
• 0.05-μA Shutdown Current, Battery Is Isolated From Load in Shutdown Mode
• Compact Converter Solution in UltraSmall 10-pin MSOP With Only Four External Capacitors Required
• Evaluation Module Available (TPS60200EVM-145)
2 Applications
• Two Battery Cells to 3.3-V Conversion
• MP3 Portable Audio Players
• Battery-Powered Microprocessor Systems
• Backup-Battery Boost Converters
• PDAs, Organizers, and Cordless Phones
• Handheld Instrumentation
• Glucose Meters and Other Medical Instruments
3 Description
The TPS6020x step-up, regulated charge pumps generate a 3.3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage. The devices are typically powered by two Alkaline, NiCd or NiMH battery cells and operate down to a minimum supply voltage of 1.6 V. Continuous output current is a minimum of 100 mA for the TPS60200 and TPS60201 and 50 mA for the TPS60202 and TPS60203, all from a 2-V input. Only four external capacitors are needed to build a complete low-ripple DC/DC converter. The push-pull operating mode of two single-ended charge pumps assures the low output voltage ripple as current is continuously transferred to the output.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6020x
MSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
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Typical Application with Low-Battery Warning
INPUT 1.6 V to 3.6 V
Ci 2.2 mF
TPS60200
7
5
IN
OUT
R1 1 LBI
R2
10 LBO
C1 1 mF
4 C1+
3 C1– 9
EN
OFF/ON
GND 2
6 C2+
8 C2–
OUTPUT 3.3 V, 100 mA
R3
Co 2.2 mF
Low Battery Warning
C2 1 mF
1
IO – Peak Output Current – mA
TPS60200 Peak Output Current
350 300 250
200
150
100
50
0
1.6
2.0
2.4
2.8
3.2
3.6
VI – Input Voltage – V
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS60200, TPS60201, TPS60202, TPS60203
SLVS274A – MARCH 2000 – REVISED APRIL 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Comparison Tables................................... 3 6 Pin Configuration and Functions ......................... 4 7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5 7.2 ESD Ratings ............................................................ 5 7.3 Recommended Operating Conditions....................... 5 7.4 Thermal Information ................................................. 5 7.5 Electrical Characteristics........................................... 6 7.6 Electrical Characteristics – Low-Battery
Comparator ................................................................ 6 7.7 Electrical Characteristics – Power-Good
Comparator ................................................................ 6 7.8 Typical Characteristic................................................ 7 8 Detailed Description .............................................. 8 8.1 Overview ................................................................... 8
8.2 Functional Block Diagrams ....................................... 8 8.3 Feature Description................................................... 9 8.4 Device Functional Modes........................................ 10 9 Application and Implementation ........................ 11 9.1 Application Information............................................ 11 9.2 Typical Applications ................................................ 12 10 Power Supply Recommendations ..................... 17 11 Layout................................................................... 17 11.1 Layout Guidelines ................................................. 17 11.2 Layout Example ...................................