Texas Instruments TPS7A88 Low-Noise Low-Dropout Voltage Regulator
Texas Instruments TPS7A88 Dual Low-Noise Low-Dropout Voltage Regulator capable of sourcing 1A per channel with only 200mV of maximum dropout. The TPS7A88 provides the flexibility of two independent LDOs and an approximately 50% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8V to 5.0V. The TPS7A88 wide input-voltage range supports operation as low as 1.4V and up to 6.5V. This device has a 1% output voltage accuracy (over the line, load, and temperature) and soft-start capabilities to reduce in-rush current. This makes the TPS7A88 ideal for powering sensitive analog low-voltage devices. The TPS7A88 is designed to power up noise-sensitive components such as those found in high-speed communication, video, medical, or test, and measurement applications.Features
- Two independent LDO channels
- <3.8µVRMS (10Hz-100kHz) Low output noise
- 200mV (Max) at 1A Low dropout
- 1.4V to 6.5V Wide input voltage range
- 0.8V to 5.0V Wide output voltage range
- High power-supply ripple rejection
- 75dB at DC
- 40dB at 100kHz
- 40dB at 1MHz
- 1.0% Accuracy over the line, load, and temperature
- Excellent load transient response
- Adjustable start-up in-rush control
- Selectable soft-start charging current
- Independent open-drain Power-Good (PG) outputs
- Stable with a 10µF or larger ceramic output capacitor
- 4mm×4mm, 20-Pin WQFN package
Applications
- High-speed analog circuits
- VCO, ADC, DAC, LVDS
- Imaging - CMOS sensors, Video ASICs
- Test and measurement
- Instrumentation, medical, and audio
- Digital loads - SerDes, FPGA, DSP™
Typical Application Circuit
發佈日期: 2016-02-10
| 更新日期: 2023-01-06
