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Product details

Parameters

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.75 Vin (Max) (V) 10 Vin (Min) (V) 2.7 Vout (Max) (V) 5.5 Vout (Min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Noise (uVrms) 54 Iq (Typ) (mA) 0.08 Thermal resistance θJA (°C/W) 43 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good Accuracy (%) 2 PSRR @ 100 KHz (dB) 29 Dropout voltage (Vdo) (Typ) (mV) 260 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

HTSSOP (PWP) 20 42 mm² 6.5 x 6.4 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Linear regulators (LDO)

Features

  • Open Drain Power-On Reset With 200-ms Delay (TPS777xx)
  • Open Drain Power Good (TPS778xx)
  • 750-mA Low-Dropout Voltage Regulator
  • Avilable in 1.5-V, 1.8-V, 2.5-V, 3.3-V Fixed Output and Adjustable Versions
  • Dropout Voltage to 260 mV (Typ) at 750 mA (TPS77x33)
  • Ultralow 85 µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • 8-Pin SOIC and 20-Pin TSSOP PowerPAD™ (PWP) Package
  • Thermal Shutdown Protection

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Description

TPS777xx and TPS778xx are designed to have a fast transient response and be stable with a 10-µF low ESR capacitors. This combination provides high performance at a reasonable cost.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 260 mV at an output current of 750 mA for the TPS77x33) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 750 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable) shuts down the regulator, reducing the quiescent current to 1 µA at TJ = 25°C.

The RESET\ output of the TPS777xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS777xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.

Power good (PG) of the TPS778xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS777xx and TPS778xx are offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5.5 V for TPS77701 option and 1.2 V to 5.5 V for TPS77801 option). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS777xx and TPS778xx families are available in 8 pin SOIC and 20 pin PWP packages.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet TPS777/8xx: Fast-Transient-Response 750-mA LDO Voltage Regulators datasheet (Rev. G) Jan. 05, 2004
Application notes LDO Noise Demystified (Rev. B) Aug. 18, 2020
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Application notes PowerPAD™ Thermally Enhanced Package (Rev. H) Jul. 06, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017

Design & development

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

Reference designs

REFERENCE DESIGNS Download
Automotive Brushed Motor Driver for Power Folding Side Mirrors
TIDA-00145 This TI Design features the DRV8801EVM and the DRV8872EVM. These evaluation modules (EVMs) enable an easy-to-use platform to demonstrate the capability and performance of the DRV8801 and DRV8872 motor drivers for power-folding side mirrors.

This TI Design also intends to allow easy evaluation of the (...)
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REFERENCE DESIGNS Download
Automotive Adaptive Front Light Positioning Stepper Motor
TIDA-00146 This TIDA-00146 reference design provides an integrated motor driver solution intended to drive a bipolar stepper motor in an automotive adaptive front light positioning application. This design features off battery capabilities with 45V maximum operating supply voltage. Along with, internal (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive HVAC Damper Motor Control
TIDA-00144 TIDA-00144 reference design consists of a 1.6A, dual H-bridge motor driver and a small number of external components that can drive up to two brushed DC motors found in automotive HVAC damper motor applications. This design features off battery capabilities with 45V maximum operating supply voltage (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Stepper Motor System with Medium Torque Drive
TIDA-00111 This bipolar stepper motor system implements an MSP430, a DRV8818, and a NEMA 23 motor.  It's suitable for applications requiring up to 140 oz-in of torque, and up to 800 RPM.  Motor voltage support is 8V to 35V, and max current is 2.5A.  A multitude of configuration options allow (...)
document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 20 View options
SOIC (D) 8 View options

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