 Features
 AEC-Q100 qualified:
− Device ambient temperature:
-40°C ≤ TA ≤ 125°C
− Device junction temperature:
-40°C ≤ TJ ≤ 150°C
 Operating input voltage range: 1.7 V to 6.0 V
 Operating output voltage range:
− Fixed options: 0.65 V to 5.0 V
− Adjustable option: 0.55 V to 5.5 V
 High PSRR: 64 dB at 1 kHz
 Power-good output options:
− Open-drain:DIA7976AO and DIA7976BO
− Push-pull: DIA7976AP and DIA7976BP
 Output accuracy:
− ±1% at TA = 25°C
− ±1.5% at -40°C ≤ TA ≤ 85°C
− ±2% at -40°C ≤ TA ≤ 125°C
 Ultra-low dropout:
− 150 mV at 500 mA, VOUT = 3.3 V
 Low quiescent current：
− 27 μA typical at no load
− 100 nA shutdown mode typical current
 Active output discharge: DIA7976A
 Non-active output discharge: DIA7976B
 Stable with a 1 μF or larger capacitor
 Applications
 Automotive head units
 Front and rear cameras
 Automotive cluster displays
 Telematics control units
 Medium, short range radar
 Description
The DIA7976 is a 500 mA ultra-low-dropout regulator
with power-good function. The DIA7976 is designed
for applications requiring low quiescent current and
provides fast line and load transient performance.
Additionally, DIA7976 features high Power Supply
Ripple Rejection (PSRR) at up to 500 mA.
The DIA7976 operates with an input voltage range
from 1.7 V to 6.0 V and the output voltage is
adjustable from 0.55 V to 5.5 V.
The DIA7976 is stable with small ceramic output
capacitors, allowing for a small overall solution size.
An error amplifier and precision band-gap provide an
accuracy of ±2% over temperature. The DIA7976
helps reduce the thermal dissipation during
short-circuit events with internal short-current limit.
The device also contains integrated thermal
shutdown, current limit, and undervoltage lockout
(UVLO) features.