Packaging information
| Package | Pins WSON (DSC) | 10 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS7A94
- Ultra-low output noise:
- 0.46 µV RMS (typ, 10 Hz to 100 kHz)
- High power-supply ripple
rejection (PSRR):
- 102 dB at 100Hz
- 110 dB at 1 kHz
- 95 dB at 10 kHz
- 78 dB at 100 kHz
- 50 dB at 1 MHz
- Accuracy over line, load, and temperature: 1%
- Low dropout: 150 mV at 1 A
- Wide input voltage range: 1.7 V to 5.7 V
- Wide output voltage range: 0 V to 5.5 V
- Parallelable for lower noise and higher current
- Fast transient response
- Precision enable and UVLO
- Programmable current limit
- Programmable PG threshold
- Adjustable start-up inrush control
- Open-drain, power-good (PG) output
- Package: 3.00-mm × 3.00-mm,
10-pin WSON:
- JEDEC R θJA: 46.1°C/W
- EVM R θJA: 25.6°C/W
Description for the TPS7A94
The TPS7A94 is an ultra-low-noise (0.46 µV RMS), low-dropout (LDO) voltage regulator capable of sourcing 1 A with only 150 mV of dropout. The low dropout, in conjunction with a wide bandwidth error amplifier, allows for very high PSRR (110 dB at 1 kHz and 50 dB at 1 MHz) under low operating headroom (500 mV) and high output current (750 mA).
The device output is adjustable from 0 V to 5.5 V with an external resistor. With the wide input voltage range, the device supports operation as low as 1.7 V and up to 5.7 V. The device includes programmable current limit, programmable PG threshold, and precision enable, allowing better control in the application.
With the high-accuracy reference and wide-bandwidth topology, the device can be easily paralleled to achieve lower noise and higher current.
With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce inrush current, the device is an excellent choice for powering sensitive analog low-voltage devices.