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TPS60125PWP

Regulated 3.0-V High Efficiency Charge Pump With Power Good Indicator

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS60125PWP
Datasheet:

TPS60125PWP Datasheet (PDF)
Vin (min) (V):

1.8
Vin (max) (V):

3.6
Vout (min) (V):

3
Vout (max) (V):

3
EDA/CAD Models:

Request Free CAD Models for TPS60125PWP

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Tel: +852 95804164

TPS60125PWP General Description

The TPS6012x step-up, regulated charge pumps generate a 3.3-V or 3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage (two alkaline, NiCd, or NiMH batteries). They can deliver an output current of at least 200 mA (100 mA for the TPS60122 and TPS60123), all from a 2-V input. Four external capacitors are needed to build a complete high efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 1.5x or doubler conversion mode. From a 2-V input, all ICs can start with full load current.

The devices feature the power-saving pulse-skip mode to extend battery life at light loads. TPS60120, TPS60122, and TPS60124 include a low battery comparator. TPS60121, TPS60123, and TPS60125 feature a power-good output. The logic shutdown function reduces the supply current to a maximum of 1uA and disconnects the load from the input. Special current-control circuitry prevents excessive current from being drawn from the battery during start-up. This dc/dc converter requires no inductors, therefore EMI is of low concern. It is available in the small, thermally enhanced 20-pin PowerPAD^TM package (PWP).

Key Features

High Average Efficiency Over Input Voltage Range Because of Special Switching Topology
Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V
Regulated 3.3-V or 3-V ±4% Output Voltage
No Inductors Required, Low EMI
Only Four External Components Required
55-uA Quiescent Supply Current
0.05-uA Shutdown Current
Load Disconnected in Shutdown
Integrated Low Battery and Power Good Detectors
Evaluation Module Available (TPS60120EVM-142)
Applications
- Applications Powered by Two Battery Cells
- Portable Instruments
- Battery-Powered Microprocessor Systems
- Miniature Equipment
- Backup-Battery Boost Converters
- PDAs, Organizers, Laptops
- MP-3 Portable Audio Players
- Handheld Instrumentation
- Medical Instruments (e.g., Glucose Meters)
- Cordless Phones

PowerPAD is a trademark of Texas Instruments Incorporated.

Specifications

Vin (min) (V)	1.8	Vin (max) (V)	3.6
Vout (min) (V)	3	Vout (max) (V)	3
Iout (max) (A)	0.2	Regulated outputs (#)	1
Switching frequency (min) (kHz)	210	Switching frequency (max) (kHz)	450
Iq (typ) (mA)	0.055	Features	Enable, Power good
Operating temperature range (°C)	-40 to 85	Rating	Catalog
Type	Charge pump	feature-function	Step Up
feature-process-technology		feature-output-type	Fixed
feature-output-voltage-v	3	feature-minimum-operating-supply-voltage-v	1.8
feature-maximum-operating-supply-voltage-v	3.6	feature-maximum-supply-current-ma
feature-maximum-power-dissipation-mw	700	feature-output-current-ma	200(Max)
feature-switching-frequency-khz	450	feature-efficiency-
feature-packaging	Tube	feature-rad-hard
feature-pin-count	20	feature-cecc-qualified	No
feature-esd-protection		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	Yes
feature-svhc-exceeds-threshold	No