MAXM17536 datasheet(4/22 Pages) MAXIM

4 / 22 page

Note 3: Electrical specifications are production tested at TA = + 25°C. Specifications over the entire operating temperature range

are guaranteed by design and characterization.

(VIN = VEN/UVLO = 24V, RRT = OPEN (450kHz), VPGND = VSGND = VMODE/SYNC = 0V, LX = SS = RESET = CF = DL = VCC = OUT =

open, VEXTVCC = 0V, VBST to VLX = 5V, VFB = 1V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.

All voltages are referenced to SGND, unless otherwise noted.) (Note 3)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RT PIN

Switching Frequency

Accuracy

fSW = 100kHz to 2.2MHz

-12

+12

Switching Frequency

fSW

RRT = open

420

450

480

kHz

Switching Frequency

Adjustable Range

100

2200

kHz

Minimum On-Time

tON(MIN)

114

160

RESET PIN

RESET

Sink Current

IRESET

RESET

Output-Level Low

IRESET = 10mA

400

RESET

Output-Leakage

Current

VRESET = 5.5V

-100

+100

VOUT Threshold for

RESET

Assertion

VOUT_OKF

VFB falling

90.4

92.5

94.6

VOUT Threshold for

RESET

Deassertion

VOUT_OKR

VFB rising

93.4

95.5

97.7

RESET

Deassertion

Delay After FB Reaches

95% Regulation

1024

Cycles

THERMAL SHUTDOWN

Thermal Shutdown

Threshold

Temperature Rising

165

°C

Thermal Shutdown

Hysteresis

°C

Electrical Characteristics (continued)

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MAXM17536

4.5V to 60V, 4A High-Efficiency, DC-DC Step-Down

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