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TPS60400QDBVRQ1
Automotive Catalog Unregulated 60 m-A Charge Pump Voltage Inverter
1 5 = 25°C−lta
TPS60400-Q1
CFLY− CFLY+ 5
OUTIN
GND2µFµF
Output
−1.6 V to −5 V,
Max 60 mA
Input
1.8Vto 5.25V
C(fly) 1µF
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TPS60400-Q1, TPS60401-Q1, TPS60402-Q1, TPS60403-Q1SGLS246B –JUNE 2004–REVISED OCTOBER 2016
TPS6040x-Q1 Unregulated 60-mA Charge Pump Voltage Inverter Features Qualifiedfor Automotive Applications AEC-Q100 Test Guidance With the Following
Results: Device Temperature Grade1: –40°Cto
+125°C Ambient Operating Temperature
Range Device HBM ESD Classification Level2 Device CDM ESD Classification Level C6 Inverts Input Supply Voltage Upto 60-mA Output Current Only Three Small 1-µF Ceramic Capacitors
Needed Input Voltage Range From 1.8Vto 5.25V PowerSave-Mode for Improved Efficiencyat 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
Applications Automotive Infotainment Automotive Cluster LCD Displays Negative Supply Voltages
DescriptionThe TPS6040x-Q1 family of devices generate an
unregulated negative output voltage from an input
voltage ranging from 1.8Vto 5.25V. The devices are
typically suppliedbya preregulated supply railof5V 3.3V. Duetoits wide-input voltage range, twoor
three NiCd, NiMH,or alkaline battery cells,as wellas
one Li-Ion cell, can also power them.
Only three external 1-μF capacitors are requiredto
builda complete DC-DC charge pump inverter.
Assembledina 5-pin SOT-23 package, the complete
converter can be built ona 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 delivera maximum output
currentof60 mA, witha typical conversion efficiency greater than 90% overa 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
currentin applications witha wide load range and
enables the design with low-value capacitors.
Device Information(1)
Typical Application Circuit
