MAX15026BATD datasheet(6/23 Pages) MAXIM

Part #	MAX15026BATD

Description	Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller

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Manufacturer	MAXIM [Maxim Integrated Products]

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6 / 23 page

Low-Cost, Small, 4.5V to 28V Wide Operating

Range, DC-DC Synchronous Buck Controller

6

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VIN = 12V, TA = +25°C. The following TOCs are for MAX15026B/C, unless otherwise noted.) (See the circuit of Figure 5.)

LIM REFERENCE CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

10

20

30

40

50

60

70

0

-40

85

SINK AND SOURCE CURRENT-LIMIT

THRESHOLDS vs. RESISTANCE (RILIM)

RESISTANCE (k

Ω)

60

50

40

30

20

10

-0.3

-0.2

-0.1

0

0.1

0.2

-0.4

070

SINK CURRENT-LIMIT

SOURCE CURRENT-LIMIT

LOAD TRANSIENT ON OUT

MAX15026 toc12

400

μs/div

AC-COUPLED

VOUT

200mV/div

IOUT

10A

1A

STARTUP AND DISABLE FROM EN

(RLOAD = 1.5

Ω)

MAX15026 toc13

4ms/div

VOUT

1V/div

VIN

5V/div

PGOOD

5V/div

STARTUP RISE TIME

(MAX15026B)

MAX15026 toc14

1ms/div

VIN

5V/div

VOUT

1V/div

POWER-DOWN FALL TIME

MAX15026 toc15

4ms/div

VIN

5V/div

VOUT

1V/div

STARTUP RISE TIME

(MAX15026C)

MAX15026 toc16

1ms/div

VIN

5V/div

VOUT

1V/div

0V OUTPUT

SOFT-START WITH 0.5V

PREBIAS AT NO LOAD (MAX15026C)

MAX15026 toc17

1ms/div

VIN

5V/div

VOUT

1V/div

0.5V OUTPUT PREBIAS

OUTPUT SHORT-CIRCUIT BEHAVIOR MONITOR

OUTPUT VOLTAGE AND CURRENT

MAX15026 toc18

4ms/div

500mV/div

0

VOUT

IOUT

20A/div

0

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