LP38692

ACTIVE

1-A, 10-V, low-dropout voltage regulator with enable

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TLV767 ACTIVE Adjustable- and fixed-output, 1-A, 16-V, positive-voltage low-dropout (LDO) linear regulator Higher input voltage range

Product details

Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (µVrms) 80 Iq (typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection Accuracy (%) 2.5 PSRR at 100 KHz (dB) 50 Dropout voltage (Vdo) (typ) (mV) 450 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (µVrms) 80 Iq (typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection Accuracy (%) 2.5 PSRR at 100 KHz (dB) 50 Dropout voltage (Vdo) (typ) (mV) 450 Operating temperature range (°C) -40 to 125
SOT-223 (NDC) 5 45.24 mm² 6.5 x 6.96 WSON (NGG) 6 9 mm² 3 x 3
  • Wide Input Voltage Range (2.7 V to 10 V)
  • 2.5% Output Accuracy (25°C)
  • Low Dropout Voltage: 450 mV at 1 A
    (typical, 5 VOUT)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specifications for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • 3-Lead TO-252, 5-Lead SOT-223, and 6-Bump WSON Packages
  • Enable Pin (LP38692)
  • Ground Pin Current: 55 µA (typical) at Full Load
  • Precision Output Voltage: 2.5% (25°C) Accuracy
  • Wide Input Voltage Range (2.7 V to 10 V)
  • 2.5% Output Accuracy (25°C)
  • Low Dropout Voltage: 450 mV at 1 A
    (typical, 5 VOUT)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specifications for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • 3-Lead TO-252, 5-Lead SOT-223, and 6-Bump WSON Packages
  • Enable Pin (LP38692)
  • Ground Pin Current: 55 µA (typical) at Full Load
  • Precision Output Voltage: 2.5% (25°C) Accuracy

The LP38690 and LP38692 low-dropout CMOS linear regulators provide tight output tolerance (2.5% typical), extremely low dropout voltage (450 mV at a 1-A load current, VOUT = 5 V), and excellent AC performance utilizing ultra low ESR ceramic output capacitors.

The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow the full operating current to be used even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP38690 and LP38692 low-dropout CMOS linear regulators provide tight output tolerance (2.5% typical), extremely low dropout voltage (450 mV at a 1-A load current, VOUT = 5 V), and excellent AC performance utilizing ultra low ESR ceramic output capacitors.

The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow the full operating current to be used even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

For all available packages, see the orderable addendum at the end of the data sheet.

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Technical documentation

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Type Title Date
* Data sheet LP38690, LP38692 1-A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors datasheet (Rev. M) PDF | HTML 03 Dec 2015
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
EVM User's guide AN-1424 LP38692-ADJ Evaluation Board (Rev. C) 11 Dec 2013

Design & development

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

Evaluation board

LP38692EVAL — 1A Low Dropout CMOS Linear Regulators with Adjustable Output Evaluation Module

LP38692-Adj 1A Low Dropout CMOS Linear Regulators with Adjustable Output

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

LP38692_3P3 PSpice Transient Model

SNVM599.ZIP (38 KB) - PSpice Model
Simulation model

LP38692_3P3 Unencrypted PSpice Transient Model

SNVMAA1.ZIP (1 KB) - PSpice Model
Reference designs

TIDA-00534 — Low Cost, Small Solution Size Power Management Reference Design for CC3200 SimpleLink Wi-Fi

The TIDA-00534 reference design provides guideline and test data of a cost effective small size power solution to power the main 3.3V voltage rails of the CC3200 wireless MCU or any other noise sensitive system from a 5V voltage source.
Design guide: PDF
Schematic: PDF
Reference designs

PMP10581 — Power Solution for Terasic DE2-115 (Cyclone IV)

The PMP10581 reference design provides all the power supply rails necessary to power Altera’s Cyclone® IV E FPGA. DE2-115 was developed by Terasic and this board is available for purchase through Terasic’s website.
Test report: PDF
Schematic: PDF
Package Pins Download
SOT-223 (NDC) 5 View options
WSON (NGG) 6 View options

Ordering & quality

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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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