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Linear & low-dropout (LDO) regulators

TPS7A4501-SP

ACTIVE

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

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Data sheet

TPS7A4501-SP

ACTIVE
Data sheet Order now

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) 50 Iq (Typ) (mA) 1 Thermal resistance θJA (°C/W) 28 Rating Space Load capacitance (Min) (µF) 10 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
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) 50 Iq (Typ) (mA) 1 Thermal resistance θJA (°C/W) 28 Rating Space Load capacitance (Min) (µF) 10 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
CFP (HKU) 10 45 mm² 10 x 10 CFP (U) 10 50 mm² 6.35 x 6.35
  • 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
  • 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

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.

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) PDF | HTML 11 Aug 2015
* Radiation & reliability report TPS7A4501-SP (5962-1222402VHA) Neutron Displacement Damage Characterization (Rev. A) 15 Jun 2021
* SMD TPS7A4501-SP SMD 5962-12224 12 Apr 2021
* Radiation & reliability report TPS7A4501-SP Single-Event Effects Test Report 22 Oct 2018
* Radiation & reliability report TPS7A4501-SP Total Ionizing Dose Radiation Report (Rev. A) 16 Mar 2017
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 17 Nov 2022
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19 Oct 2022
Selection guide TI Space Products (Rev. I) 03 Mar 2022
Application note Space-Grade, 100-krad, Voltage-Controlled Current Sink (0–200 mA) Circuit PDF | HTML 30 Jun 2021
Circuit design Space-Grade, 50-krad, 2-Wire, Discrete 4–20-mA Current Transmitter Circuit PDF | HTML 27 May 2021
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21 Aug 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 18 May 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing 17 Jun 2019
E-book Radiation Handbook for Electronics (Rev. A) 21 May 2019
Technical article When failure isn’t an option: power up your next satellite with integrated functionality and protection 30 Apr 2019
User guide TSW12D1620EVM-CVAL User's Guide (Rev. A) 29 Jan 2019
Application note Use of an LDO as a Load Switch for Space Applications 01 Aug 2018
EVM User's guide TPS7A4501SPEVM User’s Guide 17 Nov 2015

Design & development

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

Evaluation board

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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 (...)

User guide: PDF
Not available on TI.com
Evaluation board

TPS7A4501EVM-CVAL — TPS7A4501-SP wide-VIN evaluation module (EVM)

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.

User guide: PDF
Not available on TI.com
Evaluation board

TSW12D1620EVM-CVAL — ADC12D1620QML-SP space-grade wideband receiver evaluation module

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 (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS7A4501-SP PSpice Transient Model (Rev. A)

SLVMC22A.ZIP (16 KB) - PSpice Model
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Simulation model

TPS7A4501-SP PSpice Worst-Case Analysis Model

SLVMDA5.ZIP (796 KB) - PSpice Model
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Reference designs

TIDA-060042 — Series resistance temperature detector (RTD) sensing reference design

The TIDA-060042 reference design demonstrates a fully space-graded ratiometric temperature sensing circuit using ADS1282EVM-PDK. This circuit measures temperature at up to 10 different locations without any use of buffers. The majority of space applications require temperature measurement in (...)
Design guide: PDF
Reference designs

TIDA-070005 — 3- to 7-VIN, 24-A IOUT, 0.95-VOUT, Space-grade current sharing point-of-load (POL) reference design

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 (...)

Design guide: PDF
Schematic: PDF
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