Product details

Output options Fixed Output Iout (Max) (A) 0.5 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 (uVrms) 80 Iq (Typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Foldback Overcurrent Protection Accuracy (%) 4 PSRR @ 100 KHz (dB) 50 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 125
Output options Fixed Output Iout (Max) (A) 0.5 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 (uVrms) 80 Iq (Typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Foldback Overcurrent Protection Accuracy (%) 4 PSRR @ 100 KHz (dB) 50 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 125
TO-252 (NDP) 3 40 mm² 7.3 x 6.58 WSON (NGG) 6 9 mm² 3 x 3
  • Wide Input Voltage Range (2.7 V to 10 V)
  • All WSON Options are Available as AEC-Q100 Grade 1
  • 2% Output Accuracy (25°C)
  • Low Dropout Voltage: 250 mV at 500 mA (Typical,
    5 V Out)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specifications for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Ground Pin Current: 55 µA (typical) at full load
  • Enable Pin (LP38693)
  • Wide Input Voltage Range (2.7 V to 10 V)
  • All WSON Options are Available as AEC-Q100 Grade 1
  • 2% Output Accuracy (25°C)
  • Low Dropout Voltage: 250 mV at 500 mA (Typical,
    5 V Out)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specifications for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Ground Pin Current: 55 µA (typical) at full load
  • Enable Pin (LP38693)

The LP3869x low-dropout CMOS linear regulators provide tight output tolerance (2% typical), extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultralow equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow use of the full operating current 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, thus 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 LP3869x low-dropout CMOS linear regulators provide tight output tolerance (2% typical), extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultralow equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow use of the full operating current 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, thus 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.

Download

Similar products you might be interested in

open-in-new Compare products
Same functionality with different pin-out to the compared device.
TPS7A90 ACTIVE 500-mA, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy This is a lower noise (4.7uVrms), 500-mA LDO regulator

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet LP3869x/-Q1 500-mA Low-Dropout CMOS Linear Regulators Stable With Ceramic Output Capacitors datasheet (Rev. O) 02 Dec 2015
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018

Design & development

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

Simulation model

LP38691_3P3 PSpice Transient Model

SNVM582.ZIP (38 KB) - PSpice Model
Simulation model

LP38691_3P3 Unencrypted PSpice Transient Model

SNVMA74.ZIP (1 KB) - PSpice Model
Reference designs

TIDA-00913 — 48V 3-Phase Inverter with Shunt-based In-line Motor Phase Current Sensing Reference Design

The TIDA-00913 reference design realizes a 48V/10A 3-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives. One of the largest challenges with in-line shunt-based phase current sensing is the high common-mode (...)
Reference designs

TIDA-010070 — Protected DC-bus input power and control power supply reference design for low-voltage servo drives

This reference design uses an ORing controller, the LM5050-1 to provide protection against reverse polarity and reverse current. In conjunction, the LM5069 hot swap controller is used for overcurrent, over voltage, under voltage protection, and inrush current limitation. The design also features (...)
Reference designs

TIDA-00195 — Isolated IGBT Gate Driver Evaluation Platform for 3-Phase Inverter System Reference Design

The TIDA-00195 reference design consists of a 22kW power stage with TI’s new reinforced isolated IGBT gate driver ISO5852S intended for motor control in various applications. This design allows performance evaluation of the ISO5852S in 3-phase inverter incorporating 1200V rated IGBT modules (...)
Reference designs

TIDA-00909 — 48V/10A High Frequency PWM 3-Phase GaN Inverter Reference Design for High-Speed Drives

Low voltage, high-speed drives and/or low inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves that by using a 3-phase inverter with three 80V/10A (...)
Package Pins Download
TO-252 (NDP) 3 View options
WSON (NGG) 6 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos