DIA7965

The DIA7965 series is a 500 mA, ultra-high Power Supply Ripple Rejection (PSRR) low dropout CMOS linear regulator. The device features ultra-high PSRR and low noise to meet the requirements of RF and other sensitive analog circuits in automotive applications. The DIA7965 operates an input voltage range of 1.65 V to 5.5 V and supports fixed output voltage from 1 V to 3.3 V. With 18 µA low quiescent current at no load, the DIA7965 is quite suitable for systems requiring low power and provides fast line and load transient performance. The DIA7965 is stable with an 1 µF input and an 1 µF output small ceramic capacitor, allowing for a small overall solution size. A precision band-gap and error amplifier provide high accuracy of ±2% over operating temperature range. The DIA7965 is available in SOT23-5 and tiny DFN1*1-4 packages.

Product attributes

• AEC-Q100 qualified:

Device ambient temperature: -40 °C ≤ TA ≤ 125 °C

Device junction temperature: -40 °C ≤ TJ ≤ 150 °C

• Operating input voltage range: 1.65 V to 5.5 V
• Available in various fixed voltage options: 1 V to 3.3 V
• Ultra-high PSRR and low noise:

PSRR: 95 dB (typ.) at f = 1 kHz

Noise: 20 µVRMS

• Low quiescent current：

18 µA typical at no load

10 nA shutdown current

• ±2% output voltage accuracy over temperature
• Stable with a 1 µF small case size ceramic capacitor
• Quick output discharge:

DIA7965A: available

DIA7965B: not available