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Datasheet Intersil ISL72991RHQF

Datasheet Intersil ISL72991RHQF

Part NumberISL72991RHQF

Radiation Hardened Low Dropout Adjustable Negative Voltage Regulator


  • Download » Datasheet PDF, 437 Kb, Revision: 2017-12-21
    ISL72991RH Datasheet
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    ISL72991RH FN9054
    Apr 14, 2017 Radiation Hardened Low Dropout Adjustable Negative Voltage Regulator
    The radiation hardened ISL72991RH is a 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. Features The device incorporates unique circuitry that enables precision
    performance across the -55В°C to +125В°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 В±25mV (maximum), and
    load regulation of В±15mV (maximum). The reference voltage is
    the ADJ to GND voltage. Wide input voltage range -3V to -30V Constructed with the Intersil 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. Dropout voltage (1A) . 1V (maximum) Applications Radiation environment
    -SEL/SEB LETTH (VS = -30V) 86.4MeVcm2/mg
    -Total dose, high dose rate . 300krad(Si) Post switching power supplies DC/DC converters Latch-up immune DI process Nominal output voltage range . -2.25V to -26V Line regulation В±25mV (maximum) Load regulation .В±12mV (typ); В±15mV (maximum) Dropout voltage (100mA) 0.2V (typ); 0.3V (maximum) Minimum load current . 3.0mA TTL input-level shutdown (SD); low = on Operating temperature range . .-55В°C to +125В°C For a full list of related documents, visit our website
    -ISL72991RH product page -1.244 800 -1.245 790 ISL72991RH R1 COUT RCL R2 ADJ -1.246 780
    ISCL (RCL = 3.7kО©)
    770 -1.247 CC R1 R2 VREF (V) VOUT VOUT 760 -1.248 ...



Package28 Ld CFP
Package IndexK28.A


ClassV, Q, /PROTO
DLA SMD5962-02503
DescriptionRadiation Hardened Low Dropout Adjustable Negative Voltage Regulator
High Dose Rate (HDR) krad(Si)300
Low Dose Rate (ELDRS) krad(Si)Report Available
Operating Temperature Range-55 to 125
Qualification LevelQML Class Q (military), QML Class V (space)
SEL (MeV/mg/cm2)SEL free

Eco Plan


Moldel Line

Series: ISL72991RH (4)

Manufacturer's Classification

  • Space & Harsh Environment > Rad Hard Power > RH Linear Regulation

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