TPS60200_16 Datasheet, PDF (1/26 Pages) Texas Instruments – TPS6020x Regulated 3.3 V, 100-mA Low-Ripple Charge Pump Low Power DC/DC Converters

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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.
spacer
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
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.