Datasheet Texas Instruments LP38869MHE/NOPB — 数据表

LP38869
www.ti.com SNVS877B – AUGUST 2012 – REVISED APRIL 2013 LP38869 1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy
Check for Samples: LP38869 FEATURES DESCRIPTION The LP38869 low-dropout linear regulator operates
with an input voltage supply from +2.7V to +5.5V
input, and delivers a specified 1A load current with a
low 200 mV dropout. The high 50 dB PSRR at 100
kHz results from a high gain control loop that also
yields excellent transient response. Coupled with a
high accuracy output voltage, В±0.75 % over
temperature, the LP38869 is an ideal power supply
for FPGAs, DSPs or MCUs. Output voltage is preset
at +2.5V, or may be adjustable between +0.8V to +5V
with an external resistor divider. 1 2 Operating Input Supply Range: +2.7V to + 5.5V
Maximum Continuous Output Current: 1A
Preset Output Voltage of 2.5V, or Adjustable
Output Voltage From 0.8V to 5.0V
Pre-Set Output Initial VOUT Tolerance В±0.5%
Adjustable VREF Tolerance of В±0.75%
PSRR of 50dB at 100kHz
Low 200 mV Dropout at 1A
Typical 2 ВµA Supply Current in Shutdown
Mode
Adjustable Soft-Start for Output Current …