Radiation-hardness-assured (RHA), 1.5-V to 20-V, 1.5-A low-dropout (LDO) regulator



Product details


Output options Adjustable Output Iout (Max) (A) 1.5 Vin (Max) (V) 20 Vin (Min) (V) 2.3 Vout (Max) (V) 20 Vout (Min) (V) 1.21 Fixed output options (V) 0 Noise (uVrms) 35 Iq (Typ) (mA) 1 Thermal resistance θJA (°C/W) 28 Load capacitance (Min) (µF) 10 Rating Space Regulated outputs (#) 1 Features Enable, Reverse Current Protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 38 Dropout voltage (Vdo) (Typ) (mV) 270 Operating temperature range (C) -55 to 125, 25 to 25 Radiation, SEL (MeV.cm2/mg) 86 Radiation, TID (Typ) (krad) 100 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

CFP (HKU) 10 45 mm² 10 x 10 CFP (U) 10 40 mm² 6.35 x 6.35 open-in-new Find other Linear regulators (LDO)


  • QMLV Qualified SMD 5962-12224
  • Adjustable Output from 1.21 to 20 V
  • Optimized for Fast-Transient Response
  • High Output Voltage Accuracy: 1.15% at 25°C (Typical)
  • Dropout Voltage: 200 mV With ILOAD = 750 mA (Typical)
  • Low Noise: 50 µVRMS (10 Hz to 100 kHz) for VOUT = 5 V
  • High Ripple Rejection: 68 dB at 1 kHz
  • 1-mA Quiescent Current
  • No Protection Diodes Needed
  • Stable With Ceramic Output Capacitor
  • Reverse-Battery Protection
  • Reverse Current Protection
  • 5962-1222402VHA:
    • Wide Vin 2.3 to 20 V
    • Output Current: 750 mA
  • 5962R1222403VXC:
    • Wide Vin 2.9 to 20 V
    • Output Current: 1.5 A
    • Thermally-Enhanced HKU Package
    • Radiation Hardness Assurance (RHA) up to Total Ionizing Dose (TID) 100 krad (Si)
    • Exhibits Low Dose Rate Sensitivity But Remains Within the Pre-Radiation Electrical Limits at 100 krad Total Dose Level, as Allowed by MIL-STD-883, TM1019
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The TPS7A4501-SP is a low-dropout (LDO) regulator optimized for fast-transient response. The 5962-1222402VHA can supply 750 mA of output current with a dropout voltage of 300 mV. The 5962R1222403VXC can supply 1.5 A of output current with a dropout voltage of 320 mV. Quiescent current is well controlled; it does not rise in dropout, as with many other regulators. In addition to fast transient response, the TPS7A4501-SP regulator has very-low output noise, which makes it ideal for sensitive RF supply applications.

Output voltage range is from 1.21 to 20 V. The TPS7A4501-SP is stable with output capacitance as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The device is available as an adjustable device with a 1.21-V reference voltage. The 5962-1222402VHA is available in 10-pin CFP (U) package and 5962R1222403VXC is available in thermally-enhanced 10-pin CFP (HKU) package. Known good die (KGD) option is available for both 5962-1222402V9A for non-RHA version and 5962R1222403V9A for RHA.

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Technical documentation

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Type Title Date
* Data sheet TPS7A4501-SP Low-Dropout Voltage Regulator datasheet (Rev. D) Aug. 11, 2015
* Radiation & reliability report TPS7A4501-SP (5962-1222402VHA) Neutron Displacement Damage Characterization (Rev. A) Jun. 15, 2021
* SMD TPS7A4501-SP SMD 5962-12224 Apr. 12, 2021
* Radiation & reliability report TPS7A4501-SP Single-Event Effects Test Report Oct. 22, 2018
* Radiation & reliability report TPS7A4501-SP Total Ionizing Dose Radiation Report (Rev. A) Mar. 16, 2017
Technical article What’s not in the power MOSFET data sheet part 2: voltage-dependent leakage currents Jul. 23, 2021
Application note Space-Grade, 100-krad, Voltage-Controlled Current Sink (0–200 mA) Circuit Jun. 30, 2021
Application note Space-Grade, 50-krad, 2-Wire, Discrete 4–20-mA Current Transmitter Circuit May 27, 2021
Technical article How to choose the right LDO for your satellite application Apr. 09, 2021
Selection guide TI Space Products (Rev. H) Jan. 27, 2021
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer Aug. 21, 2020
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations May 18, 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form May 18, 2020
Technical article 4 trends in space-grade power management in 2020 Feb. 12, 2020
Application note Single-Event Effects Confidence Interval Calculations Jan. 14, 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing Jun. 17, 2019
E-book Preview: Radiation Handbook for Electronics (Rev. A) Jun. 07, 2019
E-book Radiation Handbook for Electronics (Rev. A) May 21, 2019
Technical article When failure isn’t an option: power up your next satellite with integrated functionality and protection Apr. 30, 2019
User guide TSW12D1620EVM-CVAL User's Guide (Rev. A) Jan. 29, 2019
Application note Use of an LDO as a Load Switch for Space Applications Aug. 01, 2018
User guide TPS7A4501SPEVM User’s Guide Nov. 17, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The ADC12DJ3200EVMCVAL is an evaluation module (EVM) that evaluates the ADC12DJ3200QML-SP device. ADC12DJ3200QML-SP is a space-grade, low-power, 12-bit, dual 3.2-GSPS/single 6.4-GSPS, RF-sampling analog-to-digital converter (ADC) with a buffered analog input, integrated digital down converter (...)

  • Flexible transformer-coupled analog input to allow for a variety of sources and frequencies
  • Easy-to-use software GUI to configure ADC12DJ3200QML-SP, LMX2582, and LMK04832 devices for a variety of configurations through a USB interface
  • Quickly evaluate ADC performance through high-speed data converter (...)
document-generic User guide

The ADS1282-SP EVM is a compact evaluation kit for evaluating the ADS1282-SP, a radiation-tolerant, extremely high-performance, dual-channel ADC. The ADS1282-SP EVM plugs directly to the MSP430FR5959 launchpad (not included with ADS1282-SP EVM) which connects to PC via USB. Complete evaluation (...)

  • Plug and play compatibility with the MSP430FR5969 Launchpad (not included with EVM kit)
  • Easy to use software compatible with Windows 7
  • Built in analysis tools including time domain and FFT graphing
  • Data collection to text files
  • Complete control of device configuration
document-generic User guide

The TPS7A4501 is a low-dropout (LDO) regulator optimized for fast transient respone.
It provides thermally enhanced small size solution capable of delivering 1.5A load current, and has low output noise for sensitive RF applicatons.

  • Low Drop out (LDO) regulator supporing 1.5A load current
  • Low Output Noise
  • Small size with thermally enhanced package
document-generic User guide

The TSW12D1620EVM-CVAL is a 1.5-GHz wideband receiver evaluation module (EVM) that includes ceramic engineering models of the amplifier, analog-to-digital converter (ADC), clocking, temperature sensor, microcontroller, and power solution. The board is best suited for (...)

  • Complete TI space-rated signal-chain and power wideband receiver solution
    • Wideband ADC12D1620QML-SP (12-bit, dual 3.2 GSPS or single 6.4 GSPS)
    • Wideband fully-differential amplifier LMH5401-SP (6.5-GHz bandwidth)
    • Remote-diode ADC temperature-monitoring TMP461-SP
    • Power management (TPS50601A-SP (...)

Design tools & simulation

SLVMC22A.ZIP (16 KB) - PSpice Model
SLVMDA5.ZIP (796 KB) - PSpice Model

Reference designs

3- to 7-VIN, 24-A IOUT, 0.95-VOUT, Space-grade current sharing point-of-load (POL) reference design
TIDA-070005 This is a 24-A DC/DC space power hardware reference design.

As FPGA and ASIC technology advances, the core voltage requirements get lower but the current demand is larger. The newest space grade FPGAs and ASICS require low voltage and high currents for their core power consumption. These high current (...)

document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
(KGD) 0 View options
CFP (HKU) 10 View options
CFP (U) 10 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

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