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LM43602-Q1

AKTIV

Synchroner 2-A-Abwärts-Spannungswandler, 3,5 bis 36 V, mit Automobilzulassung

Eine neuere Version dieses Produkts ist verfügbar

Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung.
LMR43620-Q1 AKTIV Ruhestromarmer synchroner 2-A-Abwärtswandler für die Automobilindustrie, 3 bis 36 V, mit niedriger E Smaller footprint, higher efficiency, lower EMI, lower IQ and spread-spectrum.
LMR33620AP-Q1 AKTIV Synchroner Abwärtsspannungswandler, 3,8 bis 36 V, 2 A, für die Automobilindustrie Smaller QFN package

Produktdetails

Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 28 Vout (min) (V) 1 Features Adjustable soft start, Enable, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Pre-bias startup, Synchronous rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 99
Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 28 Vout (min) (V) 1 Features Adjustable soft start, Enable, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Pre-bias startup, Synchronous rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 99
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to +125°C Ambient Operating Temperature
  • 27-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI Standards
  • Integrated Synchronous Rectification
  • Adjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable with Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft Start into a Pre-Biased Load
  • Internal Soft Start: 4.1 ms
  • Extendable Soft-Start Time by External Capacitor
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short-Circuit Protection with Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM43602-Q1 With the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to +125°C Ambient Operating Temperature
  • 27-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI Standards
  • Integrated Synchronous Rectification
  • Adjustable Frequency Range: 200 kHz to 2.2 MHz (500 kHz default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable with Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft Start into a Pre-Biased Load
  • Internal Soft Start: 4.1 ms
  • Extendable Soft-Start Time by External Capacitor
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short-Circuit Protection with Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM43602-Q1 With the WEBENCH® Power Designer

The LM43602-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 36 V (42 V abs maximum). The LM43602-Q1 provides exceptional efficiency, output accuracy and dropout voltage in a very small solution size. An extended family is available in 0.5-A , 1-A, and 3-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy to use platform for a wide range of applications. Discontinuous conduction and automatic frequency modulation at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM43602-Q1 device is available in the HTSSOP (PWP) 16-pin leaded package (6.6 mm × 5.1 mm × 1.2 mm).The LM43602A-Q1 version is optimized for PFM operation and recommended for new designs. The device is pin-to-pin compatible with LM4360x and LM4600x family.

The LM43602-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 36 V (42 V abs maximum). The LM43602-Q1 provides exceptional efficiency, output accuracy and dropout voltage in a very small solution size. An extended family is available in 0.5-A , 1-A, and 3-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy to use platform for a wide range of applications. Discontinuous conduction and automatic frequency modulation at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM43602-Q1 device is available in the HTSSOP (PWP) 16-pin leaded package (6.6 mm × 5.1 mm × 1.2 mm).The LM43602A-Q1 version is optimized for PFM operation and recommended for new designs. The device is pin-to-pin compatible with LM4360x and LM4600x family.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LM43602-Q1 3.5-V to 36-V, 2-A Synchronous Step-Down Voltage Converter datasheet (Rev. C) PDF | HTML 18.10.2017
Anwendungshinweis Differences Between LM4600x/LM4360x A and Non-A OPNs 27.03.2018
Technischer Artikel How LDOs meet power requirements for automobile camera modules PDF | HTML 14.01.2016
Anwendungshinweis Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B) 20.02.2015
Anwendungshinweis Thermal Design Made Simple With LM43603 and LM46002 15.09.2014
Anwendungshinweis Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12.09.2014
Anwendungshinweis Compensation Made SIMPLE With LM4360x, LM4600x 29.07.2014
Anwendungshinweis Automotive Line Transient Protection Circuit 01.07.2014
Anwendungshinweis AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23.04.2013

Design und Entwicklung

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