ISL78302ARFBZ中文资料Intersil数据手册PDF规格书

ISL78302 is a high performance dual LDO capable of sourcing

300mA current from each output. It has a low standby current

and is stable with an output capacitance of 1µF to 10µF and an

ESR of up to 200mΩ.

The device integrates an individual Power-On-Reset (POR)

function for each output. The POR delay for VO2 can be externally

programmed by connecting a timing capacitor to the CPOR pin.

The POR delay for VO1 is internally fixed at approximately 2ms. A

reference bypass pin is also provided for connecting a noise

filtering capacitor for low noise and high-PSRR applications.

The quiescent current is typically only 47µA with both LDOs

enabled and active. Separate enable pins control each individual

LDO output. When both enable pins are low, the device is in

shutdown, typically drawing less than 0.5µA.

The part operates down to 2.3V and up to 6.5V input. The typical

output voltage can be as low as 1.2V and as high as 3.3V for

each regulator. Please refer to the “Ordering Information” on

page 3 for standard options.

The ISL78302 is AEC-Q100 qualified at the automotive

temperature range of -40°C to +105°C.

特性 Features

• Integrates two 300mA high performance LDOs

• Excellent transient response to large current steps

• ±1.8 Accuracy over all operating conditions

• Excellent load regulation: <0.1 voltage change across full

range of load current

• Extremely low quiescent current: 47µA (both LDOs active)

• Wide input voltage capability: 2.3V to 6.5V

• Low dropout voltage: typically 300mV at 300mA

• Low output noise: typically 37µVRMS at 100µA (1.5V)

• Stable with 1µF to 10µF ceramic capacitors

• Separate enable and POR pins for each LDO

• Soft-start and staged turn-on to limit input current surge during

enable

• Current limit and over-temperature protection

• Tiny 10 Lead 3mm x 3mm DFN package

• AEC-Q100 qualified

• Pb-free (RoHS Compliant)

Applications

• Radio receivers

• Camera modules

• GPS/navigation

• Infotainment systems