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Linear & low-dropout (LDO) regulators

TPS73HD3

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750-mA, 10-V, dual-channel low-dropout voltage regulator with enable

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Data sheet

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TPS73HD3

ACTIVE
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Product details

Output options Adjustable Output, Dual output, Fixed Output Iout (max) (A) 0.75 Vin (max) (V) 10 Vin (min) (V) 2.9 Vout (max) (V) 9.7 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 2.5, 3.3 Rating Catalog Noise (µVrms) 95 PSRR at 100 KHz (dB) 6 Iq (typ) (mA) 0.34 Thermal resistance θJA (°C/W) 42 Load capacitance (min) (µF) 10 Regulated outputs (#) 2 Features Enable Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 220 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Dual output, Fixed Output Iout (max) (A) 0.75 Vin (max) (V) 10 Vin (min) (V) 2.9 Vout (max) (V) 9.7 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 2.5, 3.3 Rating Catalog Noise (µVrms) 95 PSRR at 100 KHz (dB) 6 Iq (typ) (mA) 0.34 Thermal resistance θJA (°C/W) 42 Load capacitance (min) (µF) 10 Regulated outputs (#) 2 Features Enable Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 220 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • Dual Output Voltages for Split-Supply Applications
  • 3.3-V/Adjustable Output, 3.3 V/1.8 V, and
    3.3 V/2.5
  • Dropout Voltage < 80 mV Max at
    IO = 100 mA (3.3-V option)
  • Low Quiescent Current, Independent of Load...340 uA Typ Per Regulator
  • Ultra-Low-Current Sleep State...2 uA Max
  • Dual Active-Low Reset Signals with 200-ms Pulse Width
  • Output Current Range of 0 mA to 750 mA Per Regulator
  • 28-Pin PowerPADTM TSSOP Package

PowerPAD is a trademark of Texas Instruments Incorporated.
  • Dual Output Voltages for Split-Supply Applications
  • 3.3-V/Adjustable Output, 3.3 V/1.8 V, and
    3.3 V/2.5
  • Dropout Voltage < 80 mV Max at
    IO = 100 mA (3.3-V option)
  • Low Quiescent Current, Independent of Load...340 uA Typ Per Regulator
  • Ultra-Low-Current Sleep State...2 uA Max
  • Dual Active-Low Reset Signals with 200-ms Pulse Width
  • Output Current Range of 0 mA to 750 mA Per Regulator
  • 28-Pin PowerPADTM TSSOP Package

PowerPAD is a trademark of Texas Instruments Incorporated.

The TPS73HD3xx family of dual voltage regulators offers very low dropout voltages and dual outputs in a compact package. Designed primarily for DSP applications, these devices can be used in any mixed-output voltage application with each regulator supporting up to 750 mA. Output current can be allocated as desired between the two regulators and used to power many of todays DSPs. Low quiescent current and very low dropout voltage assure maximum power usage in battery-powered applications. Texas Instruments PowerPAD TSSOP package allows use of these devices with any voltage/current combination within the range of the listed specifications without thermal problems, provided proper device mounting procedures are followed. Separate inputs allow the designer to configure the source power as desired. Dual active-low reset signals allow resetting of core-logic and I/O separately. Remote sense/feedback terminals provide regulation at the load. The TPS73HD3xx are available in 28-pin PowerPAD TSSOP. They operate over a free-air temperature range of -40°C to 125°C.

The TPS73HD3xx family of dual voltage regulators offers very low dropout voltages and dual outputs in a compact package. Designed primarily for DSP applications, these devices can be used in any mixed-output voltage application with each regulator supporting up to 750 mA. Output current can be allocated as desired between the two regulators and used to power many of todays DSPs. Low quiescent current and very low dropout voltage assure maximum power usage in battery-powered applications. Texas Instruments PowerPAD TSSOP package allows use of these devices with any voltage/current combination within the range of the listed specifications without thermal problems, provided proper device mounting procedures are followed. Separate inputs allow the designer to configure the source power as desired. Dual active-low reset signals allow resetting of core-logic and I/O separately. Remote sense/feedback terminals provide regulation at the load. The TPS73HD3xx are available in 28-pin PowerPAD TSSOP. They operate over a free-air temperature range of -40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet Dual Output Low-Dropout Voltage Regulator datasheet (Rev. C) 13 May 1999
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) 17 Aug 2018
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Application note Technical Review of Low Dropout Voltage Regulator Operation And Performance 30 Aug 1999

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HTSSOP (PWP) 28 Ultra Librarian
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