--- 產(chǎn)品詳情 ---
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) | 50 |
Switching frequency (Max) (kHz) | 250 |
Iq (Typ) (mA) | 0.125 |
Features | Adjustable Current Limit |
Rating | Automotive |
- 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
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.
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