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See Technical Specifications

TPS60120PWP

Regulated 3.3V high efficiency charge pump DC/DC converter with low-battery detector

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS60120PWP
Datasheet:

TPS60120PWP Datasheet (PDF)
Function:

Step-Up
Output Configuration:

Positive
Topology:

Charge Pump
Output Type:

Fixed
EDA/CAD Models:

Request Free CAD Models for TPS60120PWP

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Tel: +852 95804164

TPS60120PWP 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

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	-
Function	Step-Up	Output Configuration	Positive
Topology	Charge Pump	Output Type	Fixed
Number of Outputs	1	Voltage - Input (Min)	1.8V
Voltage - Input (Max)	3.6V	Voltage - Output (Min/Fixed)	3.3V
Voltage - Output (Max)	-	Current - Output	200mA
Frequency - Switching	320kHz	Synchronous Rectifier	No
Operating Temperature	-40°C ~ 85°C (TA)	Mounting Type	Surface Mount
Base Product Number	TPS60120	Vin (min) (V)	1.8
Vin (max) (V)	3.6	Vout (min) (V)	3.3
Vout (max) (V)	3.3	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	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	3.3
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