DIO7961

The DIO7961 series is a 450 mA, ultra-high PSRR, ultra-low noise, high-accuracy, and low dropout CMOS linear regulator with high ripple rejection. The device is ideal for radio frequency and analog circuits for its low quiescent current consumption and fast line and load transient performance. The DIO7961 operates over an input voltage range of 1.65 V to 5.5 V and supports fixed output voltage from 1 V to 3.3 V. The DIO7961 is designed to work with a 1 µF input and a 1 µF output ceramic capacitor, allowing for a small overall solution size. A precision band-gap and error amplifier provide high accuracy of ±1% (max) at 25°C. It is available in SOT23-5, WLCSP-4 (0.65 mm*0.65 mm*0.33 mm, pitch 0.35 mm) and DFN1*1-4 packages.

Product attributes

• Operating input voltage range: 1.65 V to 5.5 V
• Available in fixed voltage option: 1 V to 3.3 V
• Output current：450 mA
• Ultra high PSRR: Typ. 95 dB at f = 1 kHz
• Ultra low noise: 10 µV_RMS
• Output voltage accuracy: ±1%
• Ultra-low quiescent current : Typ. 18 µA
• Standby current: Typ. 0.1 µA
• Very low dropout: 180 mV at 450 mA
• Stable with a 1 µF small case size ceramic capacitor
• Quick output discharge:

DIO7961A: available

DIO7961B: not available

• Small package: SOT23-5, DFN1*1-4 and WLCSP-4 (0.65 mm*0.65 mm*0.33 mm,

pitch 0.35 mm) packages