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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - LinearLP38691DT-1.8
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LP38691DT-1.8 - Texas Instruments

Manufacturer Part Number
LP38691DT-1.8
Manufacturer
Texas Instruments
Allelco Part Number
32D-LP38691DT-1.8
ECAD Model
Parts Description
IC REG LINEAR 1.8V 500MA TO252-3
Detailed Description
Package
TO-252-3, DPak (2 Leads + Tab), SC-63
Data sheet
LP38691(-Q1),LP38693(-Q).pdf
RoHs Status
ROHS3 Compliant
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Specifications

LP38691DT-1.8 Tech Specifications
Texas Instruments - LP38691DT-1.8 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LP38691DT-1.8

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage Dropout (Max) -  
Voltage - Output (Min/Fixed) 1.8V  
Voltage - Output (Max) -  
Voltage - Input (Max) 10V  
Supplier Device Package TO-252-3  
Series -  
Protection Features Over Temperature  
Package / Case TO-252-3, DPak (2 Leads + Tab), SC-63  
Package Tube  
PSRR 55dB (120Hz)  
Product Attribute Attribute Value  
Output Type Fixed  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C  
Number of Regulators 1  
Mounting Type Surface Mount  
Current - Supply (Max) 100 µA  
Current - Quiescent (Iq) 55 µA  
Current - Output 500mA  
Control Features -  
Base Product Number LP38691  

Parts Introduction

Manufacturer Part Number

LP38691DT-1.8

Manufacturer

Texas Instruments

Introduction

The LP38691DT-1.8 is a low dropout (LDO) linear voltage regulator that is specifically designed to provide a stable, fixed output voltage of 1.8V with a maximum input voltage of 10V, suitable for various power management applications.

Product Features and Performance

Fixed output voltage of 1.8V

Maximum input voltage of 10V

Output current capacity of 500mA

Low quiescent current of 55 µA

Power supply rejection ratio (PSRR) of 55dB at 120Hz

Over temperature protection for safety

Product Advantages

High efficiency due to low dropout voltage

Minimal power loss

Suitable for battery-operated devices due to low quiescent current

Robust thermal protection enhances reliability

Key Technical Parameters

Voltage Input (Max): 10V

Voltage Output (Min/Fixed): 1.8V

Current Output: 500mA

Current Quiescent (Iq): 55 µA

PSRR: 55dB (120Hz)

Quality and Safety Features

Over temperature protection ensures the device operates within safe temperature ranges

Designed and tested for reliability in varying conditions

Compatibility

Compatible with surface mount technology for PCBs

Suitable for use in applications requiring a 1.8V regulated output from a higher voltage supply

Application Areas

Consumer Electronics

Telecommunications

Portable and battery-operated devices

Microcontroller systems

Product Lifecycle

Product Status: Last Time Buy

Noted as nearing discontinuation with advice to seek replacements or possible upgrades in the near future

Several Key Reasons to Choose This Product

Reliable fixed voltage regulation necessary for sensitive electronics

Long operational lifespan under proper conditions due to built-in thermal protection

Highly suited for portable applications due to low power consumption

Texas Instruments' reputation for quality and robust electronics components

Last chance to purchase before discontinuation, providing opportunity for stock-up before needing to transition to newer models

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LP38691DT-1.8

Product Attribute LP38691DT-1.8 LP38691DTX-5.0 LP38691DT-3.3 LP38690DTX-3.3
Part Number LP38691DT-1.8 LP38691DTX-5.0 LP38691DT-3.3 LP38690DTX-3.3
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Base Product Number LP38691 LP38691 LP38691 LP38690
Number of Regulators 1 1 1 1
Voltage - Input (Max) 10V 10V 10V 10V
Current - Output 500mA 500mA 500mA 1A
Control Features - - - -
Series - - - -
Voltage - Output (Min/Fixed) 1.8V 5V 3.3V 3.3V
Protection Features Over Temperature Over Temperature Over Temperature Over Temperature
Supplier Device Package TO-252-3 TO-252-3 TO-252-3 TO-252-3
Package / Case TO-252-3, DPak (2 Leads + Tab), SC-63 TO-252-3, DPak (2 Leads + Tab), SC-63 TO-252-3, DPak (2 Leads + Tab), SC-63 TO-252-3, DPak (2 Leads + Tab), SC-63
Voltage - Output (Max) - - - -
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
PSRR 55dB (120Hz) 55dB (120Hz) 55dB (120Hz) 55dB (120Hz)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Current - Quiescent (Iq) 55 µA 55 µA 55 µA 55 µA
Package Tube Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage Dropout (Max) - 0.45V @ 500mA 0.55V @ 500mA 1V @ 1A
Output Configuration Positive Positive Positive Positive
Current - Supply (Max) 100 µA 100 µA 100 µA 100 µA
Output Type Fixed Fixed Fixed Fixed

LP38691DT-1.8 Datasheet PDF

Download LP38691DT-1.8 pdf datasheets and Texas Instruments documentation for LP38691DT-1.8 - Texas Instruments.

PCN Design/Specification
Data Sheet Chg 3/Feb/2016.pdf
HTML Datasheet
LP38691(-Q1),LP38693(-Q).pdf
PCN Assembly/Origin
LM29/LP/SM72x 16/Mar/2022.pdf

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Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

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Contact us if you have any questions.

  1. Phone
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LP38691DT-1.8 Image

LP38691DT-1.8

Texas Instruments
32D-LP38691DT-1.8

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