TPS60403-Q1 Texas instruments

TPS60403-Q1

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TPS60403-Q1

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Описание

The TPS6040x-Q1 family of devices generate an unregulated negative output voltage from an input voltage ranging from 1.8 V to 5.25 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide-input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell, can also power them. Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Replacing the Schottky diode typically needed for start-up into load with integrated circuitry can achieve additional board area and component count reduction. The TPS6040x-Q1 can deliver a maximum output current of 60 mA, with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options TPS60401/2/3-Q1 with 20-kHz, 50-kHz, and 250-kHz fixed frequency operation are available. TPS60400-Q1 device comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.

Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
Inverts Input Supply Voltage
Up to 60-mA Output Current
Only Three Small 1-µF Ceramic Capacitors Needed
Input Voltage Range From 1.8 V to 5.25 V
PowerSave-Mode for Improved Efficiency at Low Output Currents (TPS60400-Q1)
Device Quiescent Current Typical: 100 µA
Integrated Active Schottky-Diode for Start-Up Into Load
Small 5-Pin SOT23 Package
Evaluation Module Available: TPS60400EVM-178

Vin (min) (V)	1.8
Vin (max) (V)	5.25
Vout (min) (V)	-1.8
Vout (max) (V)	-5.25
Iout (max) (A)	0.06
Regulated outputs (#)	1
Switching frequency (min) (kHz)	250
Switching frequency (max) (kHz)	250
Iq (typ) (mA)	0.425
Features	Adjustable current limit
Operating temperature range (°C)	-40 to 125
Rating	Automotive
Type	Charge pump