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ML4865

High Voltage High Current Boost Regulator

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.

Voltage on any Pin ......................... GND – 0.3V to 16.5V

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

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

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

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

Lead Temperature (Soldering, 10 sec) ..................... 150ºC

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

ML4865

OPERATING CONDITIONS

Temperature Range

ML4865CS-2 .............................................. 0ºC to 70ºC

ML4865ES-2 ............................................ –20ºC to 70ºC

VIN Voltage Range

Without external rectifier ............................ 1.8V to 6V

With external rectifier ................................ 1.8V to 10V

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

VOUT Quiescent Current

VL Quiescent Current

PFM REGULATOR

SHDN = 0 or VIN

VOUT = VOUT(MAX) + 5%

0V < VL2 < VOUT

10

25

20

30

–1

1

IL(PEAK)

VOUT

IL Peak Current

Output Voltage

Load Regulation

FEEDBACK

VIN = 5V

See Figure 1

VIN = 5V, SENSE = open, IOUT = 0

See Figure 1

VIN = 2.4V, IOUT = 40mA

VIN = 5V, IOUT = 160mA

0.8

11.72

11.52

11.52

1.2

12.1

12.0

12.0

1.6

12.48

Threshold Voltage

2.38

2.42

2.48

Input Bias Current

–150

150

SHUTDOWN

Threshold Voltage

Input Bias Current

VSHDN = high to low

0.4

0.8

1.6

–150

150

UNITS

µA

µA

µA

A

V

V

V

V

nA

V

nA

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

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