MP1522 – 25V STEP-UP CONVERTER IN A SOT23-5 PACKAGE

MP1522 Rev. 1.9

www.MonolithicPower.com

2

12/9/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

PACKAGE REFERENCE

TOP VIEW

SW

GND

FB

1

2

3

5

4

BIAS

EN

MP1522_PD01-TSOT23-5

Part Number*

Package

Temperature

MP1522ET

SOT23-5

–20

°C to +85°C

MP1522EQ

3x3 QFN6

–20

°C to +85°C

For Lead Free, add suffix –LF (eg. MP1522ET–LF–Z)

ABSOLUTE MAXIMUM RATINGS

(1)

BIAS .............................................. –0.3V to 28V

SW................................................. –0.5V to 28V

All Other Pins................................... –0.3V to 6V

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

°C

Solder Temperature..................................260

°C

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

°C

Recommended Operating Conditions

(2)

BIAS Supply Voltage ....................... 2.7V to 25V

Operating Temperature .............–20

°C to +85°C

Thermal Resistance

(3)

SOT23-5 ................................ 220 .... 110..

°C/W

3x3 QFN6 ............................... 50 ...... 14...

°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

Parameter

Symbol Condition

Min

Typ

Max

Units

Supply Current (Shutdown)

1

3

µA

Supply Current (Quiescent)

650

750

µA

Min Off Time, Normal

Operation

300

550

700

ns

Min Off Time, Start-Up

(4)

1.6

µs

Undervoltage Lockout

BIAS Under Voltage Lockout

UVLO

100mV Hysteresis (Typical)

2.1

2.3

2.65

V

Enable

EN Threshold

0.8

1.1

2.0

V

EN Hysteresis

60

mV

EN Input Bias Current

1

µA

Feedback Comparator

FB Regulation Threshold

1.19

1.23

1.27

V

FB Hysteresis

(5)

10

mV

FB Input Bias Current

–150

–80

nA

Output Switch

SW On-Resistance

(5)

0.5

0.6

Ω

SW Current Limit

300

450

mA

SW Leakage Current

10

µA

Thermal Shutdown

(5)

160

°C

Notes:

4) First 64 pulses after EN switches High

5) Guaranteed by design.