MAX15015BATX+ datasheet(5/26 Pages) MAXIM

Part #	MAX15015BATX+

Description	1A, 4.5V to 40V Input Buck Converters with 50mA Auxiliary LDO Regulators

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Manufacturer	MAXIM [Maxim Integrated Products]

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1A, 4.5V to 40V Input Buck Converters with

50mA Auxiliary LDO Regulators

_______________________________________________________________________________________

5

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Current

IOUT

VIN = 6V (Note 2)

65

200

mA

ILDO_OUT = 100µA

4.90

5

5.06

ILDO_OUT = 1mA

4.90

5

5.06

6V

≤ VIN_LDO ≤ 40V,

ILDO_OUT = 1mA

4.85

5

5.15

SET_LDO = SGND,

MAX1501_A

1mA

≤ IOUT ≤ 50mA,

VIN_LDO = 14V

4.85

5

5.15

ILDO_OUT = 100µA

3.22

3.3

3.35

ILDO_OUT = 1mA

3.22

3.3

3.35

6V

≤ VIN_LDO ≤ 40V,

ILDO_OUT = 1mA

3.2

3.3

3.4

Output Voltage

VLDO_OUT

SET_LDO = SGND,

MAX1501_B

1mA

≤ ILDO_OUT ≤

50mA, VIN_LDO =

14V

3.2

3.3

3.4

V

Adjustable Output Voltage Range

VADJ

VSET_LDO > 0.25V

1.5

11.0

V

IOUT = 10mA

0.6

VIN_LDO = 5V,

MAX1501_A

IOUT = 50mA

0.82

IOUT = 10mA

0.1

Dropout Voltage

∆VDO

VIN_LDO = 4.0V,

MAX1501_B

IOUT = 50mA

0.4

V

Startup Response Time

From EN_SYS high to LDO_OUT rise,

R

L = 500

Ω, SET_LDO = SGND

400

µs

SET_LDO Reference Voltage

VSET_LDO

1.220

1.241

1.265

V

Minimum SET_LDO Threshold

(Note 3)

185

mV

SET_LDO Input Leakage Current

ISET_LDO

VSET_LDO = 11V

0.5

100

nA

IOUT = 10mA, f = 100Hz, 500mVP-P,

VLDO_OUT = 5V

78

Power-Supply Rejection Ratio

PSRR

IOUT = 10mA, f = 1MHz, 500mVP-P,

VLDO_OUT = 5V

24

dB

Short-Circuit Current

ISC

125

185

300

mA

ELECTRICAL CHARACTERISTICS (continued)

(VIN_SW = VIN_LDO = VDRAIN = 14V, VEN_SYS = VEN_SW = 2.4V, VREG = VDVREG, VSYNC = VSET_LDO = VSGND = VPGND = 0V, CREG =

1µF, CIN_SW = 0.1µF, CIN_LDO = 0.1µF, CLDO_OUT = 10µF, CDRAIN = 0.22µF, TA = TJ = -40°C to +125°C, unless otherwise noted.

Typical values are at TA = +25°C.) (Note 1)

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