MAX5025 데이터 시트보기 (PDF) - Maxim Integrated

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MAX5025

500kHz, 36V Output, SOT23, PWM Step-Up DC-DC Converters

Maxim Integrated 

500kHz, 36V Output, SOT23,

Step-Up DC-DC Converters

ELECTRICAL CHARACTERISTICS (continued)

(VCC = 5V, SHDN = VCC, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

FB Set Point

FB Input Bias Current

Output Voltage

Adjustment Range

LX OUTPUT

LX On-Resistance

Switch Current Limit

LX Leakage Current

LOGIC INPUT: SHDN

Input Low Level

Input High Level

Input Bias Current

SYMBOL

VFB

IFB

CONDITIONS

MAX5025, VCC = 4.5V to 11V

MAX5027, VCC = 4.5V to 11V

MAX5026, VCC = 3.3V to 11V

MAX5028, VCC = 3.3V to 11V

MAX5025/MAX5026, FB = 1V

MAX5027/MAX5028, FB = 30V

MAX5025/MAX5026

MIN TYP

1.19 1.25

28.5 30.0

1.212 1.25

29.0

30

110

100

VCC + 1

MAX

1.31

31.5

1.288

31

310

170

36

RON

ILX = 40mA

ILIM

Note 2

VLX = 40V

VIL

VIH

MAX5026/MAX5028,

VCC = 3V

VCC = 5V

VCC = 11V

MAX5025/MAX5026,

VFB = 1.4V

MAX5027/MAX5028,

VFB = 35V

2.0

4.0

1.3

3.0

1.0

2.5

260

0.01

10

0.8

2.4

-1

1

Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 2: Switch current-limit accuracy is typically ±20% and is a function of the input voltage. ILIM = (VIN/5) (260mA).

UNITS

V

nA

µA

V

Ω

mA

µA

V

V

µA

_______________________________________________________________________________________ 3

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