MP1527
2A, 1.3MHz
Step-Up Converter
Monolithic Power Systems
Absolute Maximum Ratings (Note 1)
Recommended Operating Conditions
IN Input Supply Voltage VIN
Step Up Output Voltage
Operating Temperature
2.6V to 25V
3.3V to 25V
Input Supply Voltage VIN
SW Pin Voltage VSW
-0.3V to 27V
-0.3V to 27V
-40°C to +85°C
Voltage at All Other Pins
Storage Temperature
-0.3V to 6V
-55°C to +150°C
Package Thermal Characteristics
Thermal Resistance ΘJA (TSSOP14)
90°C/W
Thermal Resistance ΘJA (QFN16) (Note 2)
46°C/W
Electrical Characteristics (VIN = 5.0V, TA = 25°C unless specified otherwise)
Parameters
Conditions
Min
Typ
Max
Units
IN Shutdown Supply Current
IN Operating Supply Current
BP Output Voltage
IN Undervoltage Lockout Threshold
IN Undervoltage Lockout Hysteresis
EN Input Low Voltage
VEN<0.3V
0.5
0.9
2.4
1.0
1.2
µA
mA
V
V
mV
V
VEN>2V, VFB=1.1V
VIN = 2.6V to 25V
VIN Rising
2.1
1.5
2.4
0.3
100
EN Input High Voltage
V
EN Input Hysteresis
EN Input Bias Current
100
100
1.3
90
400
300
30
1.22
-100
2
mV
nA
MHz
%
V/V
µA/V
µA
V
SW Switching Frequency
SW Maximum Duty Cycle
Error Amplifier Voltage Gain
Error Amplifier Transconductance
COMP Maximum Output Current
FB Regulation Threshold
FB Input Bias Current
1.0
85
1.5
VFB = 1.1V
Sourcing and Sinking
1.196
1.244
VFB=1.22V
During Soft-Start
nA
µA
SS Charging Current
1.2
0.2
V
FAULT Input Threshold Voltage
V
FB < 1.0V
V
FAULT Output Low Voltage
SW On Resistance
VIN =5V
VIN =3V
(Note 3)
VSW = 25V
150
225
3.0
0.5
160
mΩ
mΩ
A
µA
°C
SW Current Limit
SW Leakage Current
Thermal Shutdown
2.0
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.
MP1527 Rev 1.8_8/31/05
Monolithic Power Systems, Inc.
2
MPS [ MONOLITHIC POWER SYSTEMS ]
