MP1540 – 1.3MHz, 18V STEP-UP CONVERTER

MP1540 Rev. 1.0

www.MonolithicPower.com

2

8/15/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

TM

PACKAGE REFERENCE

SW

GND

FB

1

2

3

5

4

IN

EN

MP1540_PD01_TSOT23-5

TOP VIEW

Part Number*

Package

Temperature

MP1540DJ

TSOT23-5

–40

°C to +85°C

* For Tape & Reel, add suffix –Z (eg. MP1540DJ–Z)

For Lead Free, add suffix –LF (eg. MP1540DJ–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

SW Pin ........................................ –0.3V to +20V

All Other Pins ............................. –0.3V to +6.5V

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

°C

Lead Temperature.................................... 260

°C

Storage Temperature .................. 65°C to 150

°C

Recommended Operating Conditions

(2)

Supply Voltage VIN ............................ 2.5V to 6V

Output Voltage VOUT ........................... 3V to 18V

Operating Temperature ............. –40

°C to +85°C

Thermal Resistance

(3)

θJA

θJC

TSOT23-5.............................. 220.....110 ..

°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The device is not guaranteed to function outside of its

operating conditions.

3) Measured on approximately 1” square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

VIN = VEN = 5V, TA = +25°C unless specified otherwise.

Parameters Sy

mbol

Condition

Min

Typ

Max

Units

Operating Input Voltage

VIN

2.5

6

V

Under Voltage Lockout

2.25

2.45

V

Under Voltage Lockout

Hysteresis

92

mV

Supply Current (Shutdown)

VEN = 0V

0.1

1

µA

Supply Current (Quiescent)

VFB = 1.3V

635

850

µA

Switching Frequency

fSW

1.0

1.3

1.6

MHz

Maximum Duty Cycle

VFB = 0V

80

85

%

EN Threshold

VEN Rising

1.0

1.3

1.6

V

EN Threshold

VEN Rising, VIN = 2.5V

1.1

V

EN Hysteresis

100

mV

EN Input Bias Current

VEN = 0V, 6V

1

µA

FB Voltage

VFB

1.21

1.25

1.29

V

FB Input Bias Current

VFB = 1.25V

–100

–30

nA

SW On-Resistance

(4) R

DS (ON)

0.65

Ω

SW Current Limit

(4)

1.9

A

SW Leakage

VSW = 15V

1

µA

Thermal Shutdown

(4)

160

°C

Note:

4) Guaranteed by design.