MAX16922ATPB/V Просмотр технического описания (PDF) - Maxim Integrated

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MAX16922ATPB/V

2.2MHz, Dual, Step-Down DC-DC Converters, Dual LDOs, and RESET

Maxim Integrated 

MAX16922

2.2MHz, Dual, Step-Down DC-DC

Converters, Dual LDOs, and RESET

Electrical Characteristics (continued)

(VPV1 = 13.5V, VPV2 = VPV3 = VOUT1, VPV4 = VOUT2; TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA

= +25°C under normal conditions, unless otherwise noted.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP

Power-Supply Rejection Ratio

IOUT4 = 30mA, f = 1kHz

57

Shutdown Output Resistance

EN = low

1

THERMAL OVERLOAD

Thermal-Shutdown Temperature

(Note 4)

150 175

Thermal-Shutdown Hysteresis

15

RESET

OUT1 OV Threshold

110

OUT1 Reset Threshold

Reset option 1 (see the Selector Guide)

Reset option 2 (see the Selector Guide)

85

90

75

80

OUT2 Reset Threshold

Percentage of nominal output

85

90

Reset Timeout Period

Reset timeout option 1 (see the Selector

Guide)

14.9

Reset timeout option 2 (see the Selector

Guide)

1.9

Output-High Leakage Current

1

Output Low Level

Sinking -3mA

UV Propagation Time

28

EN LOGIC INPUT

EN Threshold Voltage

EN rising

1.4

1.8

EN Threshold Hysteresis

0.4

Input Current

VEN = 5V

0.5

PWM LOGIC INPUT

Input High Level

PWM rising

1.8

Input Low Level

PWM falling

Logic-Input Current

0 ≤ VPWM ≤ 5.5V

1

Note 2: All units are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 3: Once PVI exceeds undervoltage-lockout rising threshold 4.0V and the device is in regulation.

Note 4: Guaranteed by design; not product tested.

MAX

UNITS

dB

kΩ

°C

°C

%

95

%

85

95

%

ms

µA

0.4

V

µs

2.2

V

V

µA

V

0.4

V

µA

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