MP1522(2003) 데이터 시트보기 (PDF) - Monolithic Power Systems

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MP1522
(Rev.:2003)

25V Step Up Converter in 3mm QFN Package

Monolithic Power Systems 

Monolithic Power Systems

MP1522

25V Step Up Converter

in 3mm QFN Package

Absolute Maximum Ratings

BIAS

SW

All Other Pins

Storage Temperature

-0.3V to 28V

-0.5V to 28V

–0.3V to 6V

-55°C to 150°C

Recommended Operating Conditions

BIAS Supply Voltage

2.7 V to 25V

Output Voltage

VIN to 25V

Operating Temperature

-20°C to +85°C

Thermal Resistance

Thermal Resistance ΘJA (QFN6)

Thermal Resistance ΘJA (SOT23-5)

80°C/W

98°C/W

Electrical Characteristics (VBIAS=VEN=5.0V, TA = 25°C unless specified otherwise)

Parameters

Supply Current (shutdown)

Supply Current (quiescent)

Minimum Off Time, Normal

Operation

Minimum Off Time, start-up

Undervoltage Lockout

BIAS Under Voltage Lockout

Enable

EN Threshold

EN Hysteresis

EN Input Bias Current

Feedback Comparator

FB Regulation Threshold

FB Hysteresis (Note 2)

FB Input Bias Current

Output Switch

SW On-Resistance (Note 2)

SW Current Limit

SW Leakage Current

Thermal Shutdown (Note 2)

Symbol

IBIAS (OFF)

IBIAS(ON)

TOFF

TOFF

Condition

VEN=0V

VFB=1.3V

VFB=1.23V

VFB=0V (Note 1)

Min Typ Max Units

1

3

µA

650 750

µA

300 550 700

ns

1.6

µS

UVLO

VBIAS Rising,

2.1 2.3 2.65

V

100mV Hysteresis (Typical)

VEN Rising

VEN=0V, 5V

0.8 1.1 2.0

V

60

mV

1

µA

VFB Falling

VFB=1.23V

RON

VBIAS = 5.0V

VSW=25V

1.19 1.23 1.27

V

10

mV

-150 -80

nA

0.5 0.6

Ω

300 450

mA

10

µA

160

°C

Notes:

1) First 64 pulses after EN switches high.

2) Guaranteed by design

MP1522 Rev 1.7_06/26/03

Monolithic Power Systems, Inc.

2

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