MAX1795 Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

Список матч

MAX1795

Low-Supply Current, Step-Up DC-DC Converters with True Shutdown

Maxim Integrated 

MAX1795/MAX1796/

MAX1797

Low-Supply Current, Step-Up DC-DC Converters

with True Shutdown

Electrical Characteristics (continued)

(VBATT = +2V, OUT = FB (VOUT = +3.3V), SHDN = LBI = GND, TA = 0°C to +85°C, unless otherwise noted. Typical values are at

TA = +25°C.)

PARAMETER

Operating Current into BATT

Shutdown Current into BATT

LX Switch MaxImum On-Time

LX Switch Minimum Off-Time

LBI Threshold Voltage Falling

LBI Hysteresis

LBI Input Current

LBO Low Output Voltage

LBO Off-Leakage Current

SHDN Input Voltage

Shutdown Input Current

SYMBOL

tON

tOFF

VLBI

CONDITIONS

VFB = +1.4V, VLBI = +1V

SHDN = BATT, VLBI = +1V

VFB = +1V, if current limit not reached

VFB = +1V

VBATT = +2V

VBATT = LBI

ILBI

VLBI = +0.8V

VBATT = VLBI = +0.975V,

sinking 20µA (50Ω typ)

VBATT = VLBI = +1.1V,

sinking 100µA (25Ω typ)

VLBO = +5.5V

VIL

VIH

VSHDN = 0 and +5.5V

MIN

3

0.8

0.8

0.875

TYP

2

2

4

1

0.85

0.925

25

9

MAX

4

4

5

1.2

0.90

0.975

100

UNITS

µA

µA

µs

µs

V

mV

nA

0.1

V

0.1

1

100

nA

0.8 x

VBATT

0.2 x

VBATT

V

100

nA

Electrical Characteristics

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

PARAMETER

Operating Voltage

Output Voltage

SYMBOL

VBATT

VOUT

Note 1

FB = OUT

FB = GND

CONDITIONS

MIN

MAX

1.0

5.5

3.13

3.47

4.75

5.25

Adjustable Output Voltage Range

2.0

5.5

Steady-State Output Current

(Note 1)

IOUT

FB = OUT

(VOUT = +3.3V)

FB = GND

(VOUT = +5.0V)

MAX1795

100

MAX1796

200

MAX1797

400

MAX1795

60

MAX1796

125

MAX1797

250

Feedback Set-Point Voltage

(Adjustable Mode)

VFB

VOUT = +2V to +5.5V

1.19

1.29

Feedback Input Current

IFB

VFB = +1.25V

100

UNITS

V

V

V

mA

V

nA

www.maximintegrated.com

Maxim Integrated │  3

Share Link: