MAX1797EUA+T

更新时间： 2024-02-19 04:07:27

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
13页	398K
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数据手册

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MAX1797EUA+T 数据手册

Low Supply Current, Step-Up DC-DC Converters

with True-Shutdown

ELECTRICAL CHARACTERISTICS (continued)

= +2V, OUT = FB (V

= +25°C.)

= +3.3V), SHDN = LBI = GND, T = 0°C to +85°C, unless otherwise noted. Typical values are

OUT A

BATT

PARAMETER

SYMBOL

CONDITIONS

= +±V

LBI

MIN

TYP

MAX

UNITS

Operating Current into BATT

Shutdown Current into BATT

LX Switch MaxImum On-Time

LX Switch Minimum Off-Time

= +±.4V, V

SHDN = BATT, V

= +±V

LBI

= +±V, if current limit not reached

= +±V

0.8

±.2

0.90

0.975

OFF

= +2V

= LBI

0.8

0.85

0.925

BATT

LBI Threshold Voltage Falling

LBI

0.875

LBI Hysteresis

LBI Input Current

= +0.8V

±00

0.±

LBI

= V

= +0.975V,

sinking 20 A (50 typ)

BATT

LBI

LBO Low Output Voltage

LBO Off-Leakage Current

SHDN Input Voltage

= V = +±.±V,

sinking ±00 A (25 typ)

BATT

LBI

0.±

= +5.5V

±00

LBO

0.2

BATT

0.8

BATT

Shutdown Input Current

= 0 and +5.5V

±00

SHDN

ELECTRICAL CHARACTERISTICS

= +2V, OUT = FB (V = +3.3V), SHDN = LBI = GND, T = -40°C to +85°C, unless otherwise noted.) (Note 3)

OUT A

BATT

PARAMETER

SYMBOL

CONDITIONS

MIN

±.0

MAX

5.5

UNITS

Operating Voltage

Note ±

BATT

FB = OUT

FB = GND

3.±3

4.75

3.47

5.25

Output Voltage

OUT

Adjustable Output Voltage

Range

2.0

5.5

MAX±795

±00

200

400

FB = OUT

MAX±796

MAX±797

MAX±795

MAX±796

MAX±797

OUT

= +3.3V)

Steady-State Output Current

(Note ±)

OUT

FB = GND

±25

250

OUT

= +5.0V)

Feedback Set-Point Voltage

(Adjustable Mode)

= +2V to +5.5V

±.±9

±.29

±00

OUT

Feedback Input Current

= +±.25V

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