Datasheet > DIA7976

DIA7976

更新时间： 2024-04-09 19:01:31

品牌	Logo	应用领域
帝奥微 - DIOO		/
页数	文件大小	规格书
25页	1828K
描述
The DIA7976 is a 500 mA ultra-low-dropout regulator with power-good function. The DIA7976 is desig

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DIA7976 数据手册

DIA7976

Version 1.5, Oct 2023

500 mA, High-Accuracy LDO with

Power-Good for Automotive Application

 Features

 Description



AEC-Q100 qualified:

The DIA7976 is a 500 mA ultra-low-dropout regulator

−

Device ambient temperature: -40°C ≤ T_A

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.

≤ 125°C

Device junction temperature: -40°C ≤ T_J

≤ 150°C



Operating input voltage range: 1.7 V to 6.0 V

Operating output voltage range:

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.

−

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:

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.

−

Open-drain:DIA7976AO and DIA7976BO

Push-pull: DIA7976AP and DIA7976BP



Output accuracy:

−

±1% at T_A= 25°C

±1.5% at -40°C ≤ T_A≤ 85°C

±2% at -40°C ≤ T_A≤ 125°C



Ultra-low dropout:

−

150 mV at 500 mA, V_OUT= 3.3 V

Low quiescent current：

−

27 µA typical at no load

 Simplified Schematic

100 nA shutdown mode typical current



Active output discharge: DIA7976A

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

 Package Information

Part Number

Package

DFN6

Body Size

2 mm × 2 mm

3 mm × 3 mm

2.9 mm × 1.6 mm

DIA7976

DFN8

SOT23-5

www.dioo.com

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