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Product details

Parameters

Output options Fixed Output Iout (Max) (A) 0.5 Vin (Max) (V) 3.3 Vin (Min) (V) 0.75 Vout (Max) (V) 3 Vout (Min) (V) 0.5 Fixed output options (V) 0.6, 0.75, 0.8, 0.9, 1, 1.05, 1.1, 1.2, 1.5, 1.8, 2.5, 2.8, 3 Noise (uVrms) 93.9 Iq (Typ) (mA) 0.0016 Thermal resistance θJA (°C/W) 77.3 Load capacitance (Min) (µF) 2.2 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 1.5 PSRR @ 100 KHz (dB) 37 Dropout voltage (Vdo) (Typ) (mV) 130 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

DSBGA (YKA) 5 1 mm² .78 x 1.13 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Linear regulators (LDO)

Features

  • Ultra-Low Input Voltage Range: 0.75 V to 3.3 V
  • Ultra-Low Dropout for Minimum Power Loss:
    • 140 mV (Maximum) at 500-mA DRV package
    • 110 mV (Maximum) at 500-mA YKA package
  • Low Quiescent Current:
    • VIN IQ = 1.6 µA (Typical)
    • VBIAS IQ = 6 µA (Typical)
  • 1.5% Accuracy Over Load, Line, and Temperature
  • High PSRR: 64 dB at 1 kHz
  • Available in Fixed-Output Voltages:
    • 0.5 V to 3.0 V (in 50-mV Steps)
  • VBIAS Range: 1.7 V to 5.5 V
  • Packages:
    • 2.0-mm × 2.0-mm WSON (6)
    • 0.74-mm × 1.09-mm DSBGA (5)
  • Active Output Discharge

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Description

The TPS7A11 is an ultra-small, low quiescent current, low-dropout regulator (LDO). This device can source 500 mA with an outstanding ac performance (load and line transient responses). This device has an input range of 0.75 V to 3.3 V, and an output range of 0.5 V to 3.0 V with a very high accuracy of 1.5% over load, line, and temperature. This performance is ideal for supplying power to the lower core voltages of modern microcontrollers (MCUs) and analog sensors.

The primary power path is through the IN pin and can be connected to a power supply as low as 140 mV above the output voltage. This device supports very low input voltages with the use of an additional VBIAS rail that is used to power the internal circuitry of the LDO. The IN and BIAS pins consume very low quiescent current of 1.6 µA and 6 µA, respectively. The low IQ and ultra-low dropout features help to increase the efficiency of the solution in power-sensitive applications. For example, the supply voltage to the IN pin can be an output of a high-efficiency, DC/DC step-down regulator and the BIAS pin supply voltage can be a rechargeable battery.

The TPS7A11 is equipped with an active pulldown circuit to quickly discharge the output when disabled, and provides a known start-up state.

The TPS7A11 is available in a small 2.00-mm × 2.00-mm WSON, 6-pin (DRV) package and an ultra-small 0.74-mm × 1.09-mm, 5-pin DSBGA (YKA) package that makes the device suitable for space-constrained applications.

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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 5
Type Title Date
* Datasheet TPS7A11 500-mA, Low VIN, Low VOUT, Ultra-Low Dropout Regulator datasheet (Rev. A) Dec. 07, 2018
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
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.

Hardware development

EVALUATION BOARD Download
20
Description
The TPS720105DRVEVM is a fully assembled and tested circuit for evaluating the TPS720105 low-dropout linear regulator in the DRV (2mm x 2mm SON-6) package.
Features
  • 350mA High-Performance LDO
  • Low Quiescent Current: 38uA
  • Excellent Load Transient Response: +/-15mV for ILOAD = 0mA to 350mA in 1us
  • Low Noise: 48uVRMS (10Hz to 100kHz)
  • 80dB VIN PSRR (10Hz to 10kHz)
  • 70dB VBIAS PSRR (10Hz to 10kHz)
  • Fast Start-Up Time: 140us
  • Built-In Soft-Start with Monotonic VOUT Rise and (...)
EVALUATION BOARD Download
29
Description

The TPS7A10EVM-004 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A10, which is a 300-mA low-Vin, low-Vout, low-dropout (LDO) voltage regulator.

The EVM circuit board is configured to be a reference design for engineering (...)

Features
  • Ultra-low input voltage range: 0.7 V to 3.3 V
  • 0.78-mm × 1.13-mm WCSP-5 package
  • Low-quiescent current: 5 μA (typical)
  • High PSRR: 40 dB at 1.5 MHz
  • Active output discharge available

Design tools & simulation

SIMULATION MODEL Download
SBVM896.ZIP (3 KB) - PSpice Model
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SIMULATION MODEL Download
SBVM917.ZIP (56 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
DSBGA (YKA) 5 View options
WSON (DRV) 6 View options

Ordering & quality

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

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