Datasheet > ISL78302AARMMZ

ISL78302AARMMZ

更新时间： 2024-11-24 02:55:31

品牌	Logo	应用领域
英特矽尔 - INTERSIL		输出元件调节器
页数	文件大小	规格书
11页	321K
描述
Dual LDO with Low Noise, Very High PSRR and Low IQ

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ISL78302AARMMZ 数据手册

Dual LDO with Low Noise, Very High PSRR and Low I

ISL78302A

ISL78302A is a high-performance dual LDO capable of

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

standby current and very high PSRR and is stable with output

capacitance of 1µF to 10µF with ESR of up to 200mΩ.

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

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.

• Low Output Noise: Typically 30µV

• Very High PSRR: 90dB @ 1kHz

@ 100µA (1.5V)

RMS

• Extremely Low Quiescent Current: 47µA (Both LDOs Active)

• Wide Input Voltage Capability: 2.3V to 6.5V

• Low Dropout Voltage: Typically 230mV @ 300mA

• Stable with 1µF to 10µF Ceramic Capacitors

• Separate Enable and POR Pins for Each LDO

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 0.3µA.

• Soft-start and Staged Turn-on to Limit Input Current Surge

During Enable

The ISL78302A is AEC - Q100 rated. The ISL78302A is rated

for the automotive temperature range (-40°C to +105°C).

• Current Limit and Overheat Protection

• Tiny 10 Ld 3mmx3mm DFN Package

• -40°C to +105°C Operating Temperature Range

• Pb-free (RoHS Compliant)

• AEC - Q100 Tested

Applications

• Radio Receivers

• Camera Modules

• GPS/Navigation

• Infotainment Systems

ISL78302A

VIN (2.3 TO 6.5V)

ENABLE1

VIN

VO1

VO2

OUT1

EN1

OUT2

OFF

ENABLE2

OFF

EN2

POR2

POR1

RESET2

(200ms DELAY,

C3 = 0.01µF)

TOO LOW

OUT2

CBYP

OUT1

CPOR

GND

RESET1

(2ms DELAY)

TOO LOW

OUT1

C1, C4, C5: 1µF X5R CERAMIC CAPACITOR

C2: 0.1µF X7R CERAMIC CAPACITOR

C3: 0.01µF X7R CERAMIC CAPACITOR

FIGURE 1. TYPICAL APPLICATION

December 23, 2013

FN7932.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...11

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与ISL78302AARMMZ相关器件

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ISL78302AARMMZ-T7A	RENESAS	获取价格	Dual LDO with Low Noise, Very High PSRR and Low IQ
ISL78302AARPLZ	INTERSIL	获取价格	Dual LDO with Low Noise, Very High PSRR and Low IQ
ISL78302AARPLZ	RENESAS	获取价格	Dual LDO with Low Noise, Very High PSRR and Low IQ
ISL78302AARPLZ-T7A	RENESAS	获取价格	Dual LDO with Low Noise, Very High PSRR and Low IQ
ISL78302AR1AZ	INTERSIL	获取价格	Dual LDO with Low Noise, High Performance and Low IQ
ISL78302AR1AZ	RENESAS	获取价格	Dual LDO with Low Noise, High Performance and Low IQ
ISL78302AR1AZ-T13	RENESAS	获取价格	FIXED POSITIVE LDO REGULATOR
ISL78302AR1AZ-T7	RENESAS	获取价格	FIXED POSITIVE LDO REGULATOR
ISL78302AR1AZ-T7A	RENESAS	获取价格	Dual LDO with Low Noise, High Performance and Low IQ
ISL78302ARBFZ	INTERSIL	获取价格	Dual LDO with Low Noise, High Performance and Low IQ

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