Datasheet > ISL72991RH

ISL72991RH

更新时间： 2024-11-27 14:57:47

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
15页	557K
描述
Radiation Hardened Low Dropout Adjustable Negative Voltage Regulator

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ISL72991RH 数据手册

DATASHEET

ISL72991RH

FN9054

Rev.7.01

Jun 16, 2022

Radiation Hardened Low Dropout Adjustable Negative Voltage Regulator

The radiation hardened ISL72991RH is a low dropout

Features

adjustable negative regulator with an output voltage range of

• Electrically screened to DLA SMD # 5962-02503

-2.25V to -26V. The device features a 1A output current

capability, an adjustable current limit pin (ILIM), and a

shutdown pin (SD) for easy on/off control.

• QML qualified per MIL-PRF-38535 requirements

• Latch-up immune DI process

The device incorporates unique circuitry that enables precision

performance across the -55°C to +125°C temperature range

and post-irradiation. Specifications across the full temperature

range include an internal reference voltage of -1.25V +40mV/-

50mV (maximum), line regulation of ±25mV (maximum), and

load regulation of ±15mV (maximum). The reference voltage is

the ADJ to GND voltage.

• Wide input voltage range . . . . . . . . . . . . . . . . . . . . -3V to -30V

• Nominal output voltage range . . . . . . . . . . . . . -2.25V to -26V

• Line regulation. . . . . . . . . . . . . . . . . . . . . . . .±25mV (maximum)

• Load regulation . . . . . . . .±12mV (typical); ±15mV (maximum)

• Dropout voltage (100mA) . . . 0.2V (typical); 0.3V (maximum)

• Dropout voltage (1A) . . . . . . . . . . . . . . . . . . . . . 1V (maximum)

• Minimum load current. . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0mA

Constructed with the dielectrically isolated Rad Hard Silicon

Gate (RSG) BiCMOS process, these devices are immune to

single event latch-up and have been specifically designed to

provide highly reliable performance in harsh radiation

environments.

• 5V-12V TTL input-level shutdown (SD); low or floating = on;

high = off

• Operating temperature range. . . . . . . . . . . .-55°C to +125°C

Applications

• Post switching power supplies

• DC/DC converters

• Radiation acceptance testing

- HDR (50-300rad(Si)/s):. . . . . . . . . . . . . . . . . . . 300krad(Si)

• SEE hardness (see SEE report for details)

- SEL/SEB LET (V = -30V) . . . . . . . . . . 86.4MeV•cm /mg

• Motor controllers

800

790

780

770

760

750

-1.244

-1.245

-1.246

-1.247

-1.248

-1.249

_SCL(R = 3.7kΩ)

VIN

VOUT

VIN

ILIM

VOUT

ADJ

ISL72991RH

GND

REF

(V = -7V, I

= 1A)

OUT

-75

-50

-25

100

125

TEMPERATURE (°C)

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. V

AND I

vs TEMPERATURE

SCL

REF

FN9054 Rev.7.01

Jun 16, 2022

Page 1 of 14

12 3 4 5 6 7...15

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与ISL72991RH相关器件

型号	品牌	获取价格	描述	数据表
ISL72991RHF	INTERSIL	获取价格	Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
ISL72991RHF/PROTO	INTERSIL	获取价格	Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
ISL72991RHQF	INTERSIL	获取价格	Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
ISL72991RHVF	INTERSIL	获取价格	Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
ISL72991RHVX	INTERSIL	获取价格	Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
ISL73002SEH	RENESAS	获取价格	Radiation Hardened and SEE Hardened 22A Synchronous Buck Regulator with Current Sharing
ISL73005SEH	RENESAS	获取价格	Radiation Hardened Dual Output Point-of-Load, Integrated Synchronous Buck and Low Dropout
ISL73006SLH	RENESAS	获取价格	Radiation Hardened 18V, 1A Point-of-Load Regulator
ISL73007SEH	RENESAS	获取价格	Rad Hard Small Form Factor 3A Point of Load Regulator
ISL73020SEH	RENESAS	获取价格	40V, 65A Enhancement Mode GaN Power Transistor

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