ML4769 Просмотр технического описания (PDF) - Micro Linear Corporation

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ML4769

2 Cell, Adjustable Output Boost Regulator with Load Disconnect

Micro Linear Corporation 

ABSOLUTE MAXIMUM RATINGS

Absolute maximum ratings are those values beyond

which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and

functional device operation is not implied.

VOUT ............................................................................................... 7V

Voltage on any other pin ..... GND - 0.3V to VOUT + 0.3V

Peak Switch Current (IPEAK) ......................................... 2A

Average Switch Current (IAVG) ..................................... 1A

Junction Temperature ............................................. 150ºC

Storage Temperature Range .................... –65ºC to 150ºC

Lead Temperature (Soldering, 10 sec) ................... 260ºC

Thermal Resistance (qJA) .................................. 160ºC/W

ML4769

OPERATING CONDITIONS

Temperature Range

ML4769CS-X .............................................. 0ºC to 70ºC

ML4769ES-X ........................................... -20ºC to 70ºC

VIN Operating Range ....................... 1.8V to VOUT - 0.2V

VOUT Operating Range ................................ 3.0V to 5.5V

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, VIN = Operating Voltage Range, TA = Operating Temperature Range (Note 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

SUPPLY

IIN

VIN Current

IOUT(Q) VOUT Quiescent Current

PFM REGULATOR

VIN = VOUT - 0.2V, SHDN = 0V

VIN = SHDN = 2.4V, VOUT = 0V

SHDN = 0V

VIN = SHDN = 2.4V,

VOUT = VOUT(NOM)

3

6

0.3

1

25

35

14

20

IPEAK

VSENSE

IL Peak Current

SENSE Comparator Threshold Voltage

Line Regulation

Load Regulation

IOUT = 0, See Figure 1

VIN = 2.4V, IOUT £ 180mA

See Figure 1

750

2.52

4.95

4.85

850

2.57

5.05

4.95

950

2.62

5.15

5.15

SHUTDOWN

VIL Input Low Voltage

VIH Input High Voltage

Input Bias Current

0.5

VIN - 0.5

-100

100

UNITS

µA

µA

µA

µA

mA

V

V

V

V

V

nA

Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.

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