MP1527

2A, 1.3MHz

Step-Up Converter

MP1527 Rev 1.8_8/31/05

Monolithic Power Systems, Inc.

2

Monolithic Power Systems

Absolute Maximum Ratings

(Note 1)

Input Supply Voltage

-0.3V to 27V

-0.3V to 27V

Voltage at All Other Pins

-0.3V to 6V

Storage Temperature

-55

°C to +150°C

Recommended Operating Conditions

2.6V to 25V

Step Up Output Voltage

3.3V to 25V

Operating Temperature

-40

°C to +85°C

Package Thermal Characteristics

90°C/W

46°C/W

Parameters

Conditions

Min

Typ

Max

Units

IN Shutdown Supply Current

0.5

1.0

µA

IN Operating Supply Current

0.9

1.2

mA

BP Output Voltage

2.4

V

IN Undervoltage Lockout Threshold

2.1

2.4

V

IN Undervoltage Lockout Hysteresis

100

mV

EN Input Low Voltage

0.3

V

EN Input High Voltage

1.5

V

EN Input Hysteresis

100

mV

EN Input Bias Current

100

nA

SW Switching Frequency

1.0

1.3

1.5

MHz

SW Maximum Duty Cycle

85

90

%

Error Amplifier Voltage Gain

400

V/V

Error Amplifier Transconductance

300

µA/V

COMP Maximum Output Current

Sourcing and Sinking

30

µA

FB Regulation Threshold

1.196

1.22

1.244

V

FB Input Bias Current

-100

nA

SS Charging Current

During Soft-Start

2

µA

FAULT Input Threshold Voltage

1.2

V

FAULT Output Low Voltage

0.2

V

150

m

Ω

SW On Resistance

225

m

Ω

SW Current Limit

(Note 3)

2.0

3.0

A

SW Leakage Current

0.5

µA

Thermal Shutdown

160

°C

Note 1: Exceeding these ratings may damage the device.

Note 2: Measured on approximately 1” square of 1oz copper.

Note 3: Guaranteed by design. Not tested.