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MAX16935
(Rev.:2014)

36V, 3.5A, 2.2MHz Step-Down Converter with 28µA Quiescent Current

Maxim Integrated 

MAX16935

36V, 3.5A, 2.2MHz Step-Down Converter

with 28µA Quiescent Current

ELECTRICAL CHARACTERISTICS (continued)

(VSUP = VSUPSW = 14V, VEN = 14V, L1 = 2.2FH, CIN = 4.7FF, COUT = 22FF, CBIAS = 1FF, CBST = 0.1FF, RFOSC = 12kI,

TA = TJ = -40NC to +125NC, unless otherwise noted. Typical values are at TA = +25NC.)

PARAMETER

SYMBOL

CONDITIONS

External Input Clock High

Threshold

VFSYNC_HI VFSYNC rising

External Input Clock Low

Threshold

VFSYNC_LO VFSYNC falling

Soft-Start Time

tSS

ENABLE INPUT (EN)

Enable Input High Threshold

Enable Input Low Threshold

Enable Threshold Voltage

Hysteresis

VEN_HI

VEN_LO

VEN_HYS

Enable Input Current

POWER GOOD (PGOOD)

IEN

TA = +25NC

PGOOD Switching Level

PGOOD Debounce Time

VTH_RISING

VTH_FALLING

VFB rising, VPGOOD = high

VFB falling, VPGOOD =low

PGOOD Output Low Voltage

PGOOD Leakage Current

SYNCOUT Low Voltage

SYNCOUT Leakage Current

FSYNC Leakage Current

OVERVOLTAGE PROTECTION

ISINK = 5mA

VOUT in regulation, TA = +25NC

ISINK = 5mA

TA = +25NC

TA = +25NC

Overvoltage Protection

VOUT rising (monitored at FB pin)

Threshold

VOUT falling (monitored at FB pin)

Note 2: Device not in dropout condition.

Note 3: Filter circuit required, see the Typical Application Circuit.

Note 4: Guaranteed by design; not production tested.

Note 5: FB regulation voltage is 1%, 1.01V (max), for -40°C < TA < +105°C.

Note 6: Contact the factory for SYNC frequency outside the specified range.

MIN TYP MAX UNITS

1.4

V

0.4

V

5.6

8

12

ms

2.4

V

0.6

0.2

V

0.1

1

FA

93

95

97

90

92

94

%VFB

10

25

50

Fs

0.4

V

1

FA

0.4

V

1

FA

1

FA

107

%

105

Maxim Integrated

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