MAX1536 datasheet(7/19 Pages) MAXIM

Part #	MAX1536

Description	3.6A, 1.4MHz, Low-Voltage, Internal-Switch Step-Down Regulator with Dynamic Output Voltage Control

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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7 / 19 page

3.6A, 1.4MHz, Low-Voltage, Internal-Switch Step-

Down Regulator with Dynamic Output Voltage Control

_______________________________________________________________________________________

7

Typical Operating Characteristics (continued)

(MAX1536 Circuit of Figure 1, TA = +25°C, unless otherwise noted.)

STARTUP AND SHUTDOWN

(HEAVY LOAD)

MAX1536 toc10

400

μs/div

VSHDN

5V/div

VPGOOD

5V/div

ILX

2A/div

VOUT

1V/div

VIN = 3.3V, VOUT = 1.8V, RLOAD = 0.5

Ω

STARTUP AND SHUTDOWN

(LIGHT LOAD)

MAX1536 toc11

400

μs/div

VSHDN

5V/div

VPGOOD

5V/div

ILX

1A/div

VOUT

1V/div

VIN = 3.3V, VOUT = 1.8V, RLOAD = 3

Ω

LOAD-TRANSIENT RESPONSE

(PWM MODE)

MAX1536 toc12

20

μs/div

IOUT

2A/div

ILX

2A/div

VOUT

50mV/div

VLX

5V/div

VIN = 3.3V, VOUT = 1.8V, IOUT = 0.1A TO 3A TO 0.1A

LOAD-TRANSIENT RESPONSE

(IDLE MODE)

MAX1536 toc13

20

μs/div

IOUT

2A/div

ILX

2A/div

VOUT

50mV/div

VLX

5V/div

VIN = 3.3V, VOUT = 1.8V, IOUT = 0.1A TO 3A TO 0.1A

DYNAMIC OUTPUT-VOLTAGE TRANSITION

(IDLE MODE)

MAX1536 toc14

20

μs/div

VGATE

5V/div

VLX

5V/div

VOUT

200mV/div

VREFIN

200mV/div

ILX

5A/div

0

VIN = 3.3V, VOUT = 1.5V TO 1.8V TO 1.5V,

FBLANK = REF, ILOAD = 0.1A

REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

1.997

1.998

1.999

2.000

2.001

2.002

1.996

-40

85

VIN = 3.3V

IREF = 0

IREF = 50

μA

IREF = 25

μA

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