Texas Instruments LMR51403XDBVR
Manufacturer No:
LMR51403XDBVR
Manufacturer:
Texas Instruments
Package:
Description:
4.5V-to-42V 0.3A synchronous buck converter with 25µA quiescent current
Quantity:
In Stock :6392
Looking for price or availability? Send us an RFQ and our sales team will respond quickly.
Shipping & Availability
Fast worldwide shipping via DHL, FedEx, UPS, and EMS.
Shipped from：HK Warehouse
Expected Shipping：Fri, May 29 - Sat, May 30, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
Payment
We support multiple secure payment methods including PayPal, Visa, MasterCard, and American Express. All transactions are protected with advanced encryption to ensure secure and reliable payments.
Authenticity Guarantee
All components supplied by Aichiplink are sourced from trusted global suppliers and verified through strict in-house inspection and quality control procedures.
Quality Assurance
Certified in-house inspection and testing facilities ensure all components meet internationally recognized quality standards.
User Guide
Aichiplink operates certified in-house inspection and testing facilities to ensure all electronic components meet internationally recognized quality and compliance standards. Our quality management system is verified through ISO 9001 certification and industry-standard inspection procedures.
PURCHASE
Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.
MEANS OF PAYMENTFor your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.
RFQ (REQUEST FOR QUOTATIONS)Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.
Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.
Step1：Prepare product
Step2：Desiccant Protection
Step3：Vacuum Packaging
Step4：Individual Package
Step5：Anti-collision Filling
Step6：Packaging Box
SHIPPING COST
1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
DELIVERY TIME1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.
LMR51403XDBVR Information
Texas Instruments LMR51403XDBVR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LMR51403XDBVR.
- Type
- Parameter
- Rating
- Catalog
- Topology
- Buck
- Iout (max) (A)
- 0.3
- Vin (max) (V)
- 42
- Vin (min) (V)
- 4.5
- Vout (max) (V)
- 28
- Vout (min) (V)
- 0.8
- Features
- Enable, Forced PWM, Overcurrent protection, Prebias startup, Synchronous rectification
- Control mode
- current mode
- Switching frequency (min) (kHz)
- 400
- Type
- Parameter
- Switching frequency (max) (kHz)
- 1100
- TI functional safety category
- Functional Safety-Capable
- Operating temperature range (°C)
- -40 to 150
- Iq (typ) (µA)
- 25
- Duty cycle (max) (%)
- 96
- Type
- Converter
- Package
- SOT-23 (DBV)
- Pins
- 6
- Size
- 8.12 mm² 2.9 x 2.8
- REACH Status
- Yes
Download datasheets and manufacturer documentation for Texas Instruments LMR51403XDBVR.
Data sheet:
Application note:
Functional safety information:
The LMR51403 is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 300mA load current. With a wide input range of 4V to 42V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.
The LMR51403 operates at 400kHz and 1.1MHz switching frequency to support use of relatively small inductors for an optimized design size. The LMR51403 has a pulse frequency modulation (PFM version) to realize high efficiency at light load and forced pulse width modulation (FPWM version) to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.
The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.
- Functional Safety-Capable
- Configured for rugged industrial applications
- 4V to 42V input voltage range
- Input transient protection up to 50V
- 300mA continuous output current
- 80ns minimum switching on time
- Fixed 400kHz and 1.1MHz switching frequency
- –40°C to 150°C junction temperature range
- 96% maximum duty cycle
- Monotonic start-up with prebiased output
- Short-circuit protection with hiccup mode
- Precision enable
- ±1.5% tolerance voltage reference
- Small design size and ease of use
- Integrated synchronous rectification
- Internal compensation for ease of use
- SOT-23 package
- Various options in pin-to-pin compatible package
- PFM and forced PWM (FPWM) options
- Pin-to-pin compatible with the LMR51610, LMR51406, LMR16006, LV2862, LMR50410, TPS560430, and LMR54410
- Create a custom design using the LMR51403 with the WEBENCH ™ Power Designer
AIChipLink – Your Trusted Electronic Components Distributor
12.28 M
Listed Part Number
3,000+
Leading Manufacturers
4.9 M
In-stock SKU
15,000+
Warehouse Area(㎡)
.png&w=256&q=75)
