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Radiation Hardened Low-Dropout Adjustable Negative Voltage Regulator

Package Information

CAD Model:View CAD Model
Pkg. Type:DIE
Pkg. Code:
Lead Count (#):
Pkg. Dimensions (mm):
Pitch (mm):

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)
Pb (Lead) FreeNo
ECCN (US)9A515.e.1
HTS (US)8542.39.0090

Product Attributes

Qualification LevelEM
Pb (Lead) FreeNo
MOQ5
Temp. Range (°C)-55 to +125°C
CAGE code34371
Die Sale Availability?Yes
FlowRH Hermetic
IOUT (A)1
IOUT (Max) (mA)1000
Input Voltage (Max) (V)-30
Input Voltage (Min) (V)-3
Models AvailablePSPICE
Output OptionsAdjustable
Output Voltage (Max) (V)-26
Output Voltage (Min) (V)-2.25
PROTO Availability?Yes
Pkg. TypeDIE
Quiescent Current.006
RatingSpace
Supply Voltage (max) (V)-3 - -3
Supply Voltage (min) (V)-30 - -30
TID HDR (krad(Si))300
TID LDR (krad(Si))Report Available
VDO @ IOUTMAX (Typ) (mV)1000
VOUT (max) (V)-2.25
VOUT (min) (V)-26

Description

The ISL72991RH is a radiation hardened low-dropout adjustable negative regulator with an output voltage range of -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. This regulator 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. Constructed with Renesas' 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.