ADP2370CPZ-REDYKIT(RevA) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADP2370CPZ-REDYKIT
(Rev.:RevA)

High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator

Analog Devices 

ADP2370/ADP2371

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Typical Application Circuit ............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Recommended Specifications: Capacitors ................................ 5

Absolute Maximum Ratings ....................................................... 6

Thermal Data ................................................................................ 6

Thermal Resistance ...................................................................... 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 8

Buck Output .................................................................................. 8

Theory of Operation ...................................................................... 20

PWM Operation ......................................................................... 20

PSM Operation ........................................................................... 21

Features Descriptions..................................................................... 22

Precision Enable ......................................................................... 22

Forced PWM or PWM/PSM Selection.................................... 22

Quick Output Discharge (QOD) Function............................. 22

Short-Circuit Protection............................................................ 22

REVISION HISTORY

5/12—Rev. 0 to Rev. A

Changed Voltage Range for SW to PGND and Ground Plane

from −0.3 V to VIN + 0.3 V to −0.7 V to VIN + 0.3 V ............... 6

Changes to Ordering Guide .......................................................... 32

4/12—Revision 0: Initial Version

Data Sheet

Undervoltage Lockout ............................................................... 22

Thermal Protection.................................................................... 22

Soft Start ...................................................................................... 22

Current Limit .............................................................................. 22

100% Duty Cycle ........................................................................ 23

Synchronizing ............................................................................. 23

Power Good ................................................................................ 24

Applications Information .............................................................. 25

ADIsimPower Design Tool ....................................................... 25

External Component Selection ................................................ 25

Selecting the Inductor................................................................ 25

Output Capacitor........................................................................ 25

Input Capacitor........................................................................... 25

Adjustable Output Voltage Programming .............................. 25

Efficiency ..................................................................................... 26

Recommended Buck External Components .......................... 26

Capacitor Selection .................................................................... 28

Thermal Considerations................................................................ 29

PCB Layout Considerations...................................................... 30

Packaging and Ordering Information ......................................... 32

Outline Dimensions................................................................... 32

Ordering Guide .......................................................................... 32

Rev. A | Page 2 of 32

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