MAX1702BEGX 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1702BEGX

Triple Output Power Management IC for Microprocessor-Based Systems

Maxim Integrated 

MAX1702B

Triple Output Power Management IC for

Microprocessor-Based Systems

Electrical Characteristics (continued)

(VINP1 = VINP2 = VINP3 = VIN = 3.6V, VLBI = 1.1V, VDBI = 1.35V, MR = ON2 = IN, PGM3 = GND, Circuit of Figure 1, TA = -40°C to

+85°C unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

RSO, LBO, OUTOK

Output Low Level

RSO, LBO, OUTOK

Output High Leakage Current

ON2, MR, Input High Level

ON2, MR, Input Low Level

ON2, MR, PGM3, Input Leakage

Current

PGM3 Selection Threshold

CONDITIONS

2.6V ≤ VIN_ ≤ 5.5V, sinking 1mA

VIN_ = 1V, sinking 100µA

VRSO = VLBO = VOUTOK = 5.5V

2.6V ≤ VIN_ ≤ 5.5V

2.6V ≤ VIN_ ≤ 5.5V

VON2 = VMR = VPGM3 = GND, 5.5V

REG3 target = 1.8V, IN = 2.6V to 5.5V

REG3 target = 2.5V, IN = 2.6V to 5.5V

REG3 target = 3.3V, IN = 2.6V to 5.5V

MIN TYP

1.6

-1

1.1 REF

VIN_ - 0.25

MAX

0.4

0.4

0.1

0.4

+1

0.4

1.4

UNITS

V

µA

V

V

µA

V

Note 1: Dropout voltage is not tested. Guaranteed by P-channel switch resistance and assumes a 72mΩ (REG1 and REG3) or

162mΩ (REG2) maximum ESR of inductor.

Note 2: The maximum output current is guaranteed by the following equation:

IOUT ( MAX )

=

ILIM

−

VOUT (1−D

2× ƒ ×L

)

1+( RN

+ RL

) (1−D )

2× ƒ ×L

where:

D = VOUT +IOUT ( MAX ) ( RN + RL )

VIN +IOUT ( MAX ) ( RN + RP )

and: RN = N-channel synchronous rectifier RDSON

RP = P-channel power switch RDSON

RL = external inductor ESR

IOUT(MAX) = maximum required load current

ƒ = operating frequency minimum

L = external inductor value

Note 3: Specified resistance is in series with an internal diode to LX2.

Note 4: Specifications to -40°C are guaranteed by design and not production tested.

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