LM3102-Q1

ACTIVO

Regulador de tensión reductor síncrono de 2.5A y 1 MHz

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Hoja de datos

document-pdfAcrobat LM3102-Q1 Automotive Synchronous 1-MHz, 2.5-A Step-Down Voltage Regulator datasheet (Inglés) PDF | HTML

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LMQ66430-Q1

ACTIVO

Convertidor reductor síncrono bajo de 36 V y 3 A de grado automotriz con IQ de 1,5 µA Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM3102-Q1

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Automotive

Topology

Buck

Iout (max) (A)

2.5

Vin (max) (V)

42

Vin (min) (V)

4.5

Vout (max) (V)

7

Vout (min) (V)

0.8

Features

Enable, Overcurrent protection, Synchronous rectification

Control mode

COT with emulated ripple

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Duty cycle (max) (%)

94

Rating

Automotive

Topology

Buck

Iout (max) (A)

2.5

Vin (max) (V)

42

Vin (min) (V)

4.5

Vout (max) (V)

7

Vout (min) (V)

0.8

Features

Enable, Overcurrent protection, Synchronous rectification

Control mode

COT with emulated ripple

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Duty cycle (max) (%)

94

HTSSOP (PWP)

20

41.6 mm² (6.5 mm × 6.4 mm)

AEC-Q100-Qualified for Automotive Applications:
- Temperature grade 1: –40°C to +125°C, T_A
Low Component Count and Small Solution Size
Stable With Ceramic and Other Low-ESR Capacitors
No Loop Compensation Required
High Efficiency at a Light Load by DCM Operation
Prebias Start-Up
Ultra-Fast Transient Response
Programmable Soft Start
Programmable Switching Frequency up to 1 MHz
Valley Current Limit
Output Overvoltage Protection
Precision Internal Reference for an Adjustable Output Voltage Down to 0.8 V
Thermal Shutdown
Key Specifications
- Input Voltage Range 4.5 V to 42 V
- 2.5-A Output Current
- 0.8 V, ±1.5% Reference
- Integrated Dual N-Channel Main and Synchronous MOSFETs
- Thermally Enhanced 20-Pin HTSSOP Package
Create a Custom Design using the LM3102-Q1 with the WEBENCH^® Power Designer

AEC-Q100-Qualified for Automotive Applications:
- Temperature grade 1: –40°C to +125°C, T_A
Low Component Count and Small Solution Size
Stable With Ceramic and Other Low-ESR Capacitors
No Loop Compensation Required
High Efficiency at a Light Load by DCM Operation
Prebias Start-Up
Ultra-Fast Transient Response
Programmable Soft Start
Programmable Switching Frequency up to 1 MHz
Valley Current Limit
Output Overvoltage Protection
Precision Internal Reference for an Adjustable Output Voltage Down to 0.8 V
Thermal Shutdown
Key Specifications
- Input Voltage Range 4.5 V to 42 V
- 2.5-A Output Current
- 0.8 V, ±1.5% Reference
- Integrated Dual N-Channel Main and Synchronous MOSFETs
- Thermally Enhanced 20-Pin HTSSOP Package
Create a Custom Design using the LM3102-Q1 with the WEBENCH^® Power Designer

The LM3102-Q1 synchronously rectified buck converter features all required functions to implement a highly efficient and cost-effective buck regulator. The device can supply 2.5 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LM3102-Q1 does not rely on output capacitor ESR for stability and is designed to work exceptionally well with ceramic and other very low-ESR output capacitors. The device requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the ON-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include V_CC undervoltage lockout (UVLO), output overvoltage protection, thermal shutdown, and gate-drive UVLO. The LM3102-Q1 is available in the thermally enhanced 20-pin HTSSOP package.

The LM3102-Q1 synchronously rectified buck converter features all required functions to implement a highly efficient and cost-effective buck regulator. The device can supply 2.5 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LM3102-Q1 does not rely on output capacitor ESR for stability and is designed to work exceptionally well with ceramic and other very low-ESR output capacitors. The device requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the ON-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include V_CC undervoltage lockout (UVLO), output overvoltage protection, thermal shutdown, and gate-drive UVLO. The LM3102-Q1 is available in the thermally enhanced 20-pin HTSSOP package.

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	LM3102-Q1 Automotive Synchronous 1-MHz, 2.5-A Step-Down Voltage Regulator datasheet	PDF \| HTML	23/05/2019
	Nota sobre la aplicación	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	25/03/2024
	Nota sobre la aplicación	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		12/09/2014
	Guía del usuario	AN-1646 LM3102 Demonstration Board Reference Design (Rev. A)		29/04/2013
	Nota sobre la aplicación	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		24/04/2013
	Nota sobre la aplicación	AN-2200 Precision Current Limiting with the LMP8646 and LMZ12003 (Rev. A)		23/04/2013
	Nota sobre la aplicación	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		23/04/2013
	Nota sobre la aplicación	AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A)		23/04/2013
	Nota sobre la aplicación	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		23/04/2013
	Nota sobre la aplicación	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		23/04/2013
	Nota sobre la aplicación	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		23/04/2013
	Nota sobre la aplicación	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		23/04/2013
	Nota sobre la aplicación	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		23/04/2013
	Nota sobre la aplicación	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		23/04/2013
	Nota sobre la aplicación	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		23/04/2013
	Nota sobre la aplicación	Input and Output Capacitor Selection		19/09/2005
	Más documentación	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		12/07/2005
	Nota sobre la aplicación	AN-643 EMI/RFI Board Design (Rev. B)		3/05/2004

Diseño y desarrollo

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