MAX5035AASA データシートの表示（PDF） - Maxim Integrated

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MAX5035AASA

1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter

Maxim Integrated 

MAX5035

1A, 76V, High-Efficiency MAXPower

Step-Down DC-DC Converter

Pin Description

PIN

NAME

FUNCTION

1

BST Boost Capacitor Connection. Connect a 0.1µF ceramic capacitor from BST to LX.

2

VD Internal Regulator Output. Bypass VD to GND with a 0.1µF ceramic capacitor.

3

SGND Internal Connection. SGND must be connected to GND.

Output Sense Feedback Connection. For fixed output voltage (MAX5035A, MAX5035B, MAX5035C),

4

FB

connect FB to VOUT. For adjustable output voltage (MAX5035D, MAX5035E), use an external resistive

voltage-divider to set VOUT. VFB regulating set point is 1.22V.

5

ON/OFF

Shutdown Control Input. Pull ON/OFF low to put the device in shutdown mode. Drive ON/OFF high for

normal operation.

6

GND Ground

7

VIN Input Voltage. Bypass VIN to GND with a low ESR capacitor as close to the device as possible.

8

LX Source Connection of Internal High-Side Switch

Block Diagram

ON/OFF

VIN

1.69V

VD

ENABLE

REGULATOR

(FOR ANALOG)

REGULATOR

(FOR DRIVER)

VREF

OSC

RAMP

CPFM

CILIM

IREF-PFM

HIGH-SIDE

CURRENT

SENSE

IREF-LIM

BST

MAX5035

FB

Rh

RAMP

CLK CONTROL

LOGIC

x1

TYPE 3

COMPENSATION

Rl

VREF

EAMP

CPWM

THERMAL

SHUTDOWN

GND

LX

SGND

Maxim Integrated

9

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