0
ACTIVE
Rating |
Automotive |
Iout (max) (A) |
0.2 |
Vin (max) (V) |
5.25 |
Vin (min) (V) |
1.8 |
Vout (max) (V) |
-1.8 |
Vout (min) (V) |
-5.25 |
Features |
Adjustable current limit, Enable pin, Unregulated |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.00034 |
TI functional safety category |
Functional Safety-Capable |
SOT-5X3 (DRL)-6-2.56 mm² 1.6 x 1.6
The TPS60800-Q1 generates an unregulated negative output voltage from an input voltage ranging from 1.8V to 5.25V. The devices are typically supplied by a preregulated supply rail of 5V or 3.3V. As TPS60800-Q1 supports wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power the device.
Only three external 1µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 6-pin SOT563 package, the complete converter can be built on a 40mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
The TPS60800-Q1 can deliver a maximum output current of 200mA with a typical conversion efficiency of greater than 90% over a wide output current range. TPS60800-Q1 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.
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