MAX25201 datasheet(4/22 Pages) MAXIM

4 / 22 page

(VSUP = 14V, VEN = 14V, CBIAS = 1μF, CBST = 0.1μF, TJ = -40°C to +150°C, unless otherwise noted. Typical values are at TA =

+25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

STEP UP CONTROLLER

Supply Voltage Range

Initial startup, VOUT = VBATT

4.5

VSUP

Operation after initial startup condition is satisfied

1.8

Output Over-Voltage

Threshold

Detected with respect to VFB rising

102.0

105

107.5

Supply Current

IIN

VEN = VSUP, VFB = VBIAS (fixed output voltage),

VSUP > VOUT, no load (MAX25201)

µA

VEN = VSUP, VSUP > VOUT, adjustable output, no

load. Excludes current through external FB divider

(MAX25201)

Shutdown, VEN = 0V, fixed output voltage

1.5

Shutdown, VEN = 0V, adjustable output, excludes

current through external FB divider

1.5

Fixed Output Voltage

VOUT

VFB = VBIAS, PWM mode, MAX25201ATEA/VY+

and MAX25201ATEB/VY+ only

9.85

10.04

10.25

VFB = VBIAS, skip mode, MAX25201ATEA/VY+

and MAX25201ATEB/VY+ only

9.70

10.04

10.30

Output Voltage

Adjustable Range

MAX25201ATEA/VY+ and MAX25201ATEB/VY+

3.5

MAX25201ATEC/VY+, MAX25201ATED/

VY+, MAX25202MATEA/VY+,

MAX25202SATEA/VY+

Regulated Feedback

Voltage

VFB

0.99

1.005

1.02

Feedback Leakage

Current

IFB

TA = 25°C

0.01

µA

Feedback Line

Regulation Error

VIN = 3.5V to 36V, VFB = 1V

0.01

%/V

Transconductance

(from FB to COMP)

gm_boost

VFB = 1V, VBIAS = 5V (Note 1)

165

250

345

µS

Dead Time

DL low to DH rising

DH low to DL rising

DH Pullup Resistance

VBIAS = 5V, IDH = -100mA

1.5

2.6

DH Pulldown

Resistance

VBIAS = 5V, IDH = 100mA

DL Pullup Resistance

VBIAS = 5V, IDL = -100mA

1.5

2.8

DL Pulldown

Resistance

VBIAS = 5V, IDL = 100mA

Minimum Off Time

tOFFBST

PWM Switching

Frequency Range

fSW

MAX25201, programmable with RFOSC

0.22

2.2

MHz

Switching Frequency

Accuracy

RFOSC = 70kΩ, VBIAS = 5V, 3.3V (MAX25201)

380

400

420

kHz

MAX25202M/MAX25202S

375

400

425

Electrical Characteristics

www.maximintegrated.com

Maxim Integrated │ 4

MAX25201/MAX25202

36V HV Synchronous Boost Controller

for Automotive Infotainment Applications

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