SP6652 Datasheet, PDF (2/11 Pages) Sipex Corporation – 1A, High Efficiency, High Frequency Current Mode PWM Buck Regulator

PV_IN,S_VIN ........................................................................... -0.3V to 0.3V
P to S ...................................................................... -0.3V to 0.3V
GND
GND
LX to P_GND ................................................................ - 0.3V to P_VIN+0.3V
Storage Temperature .................................................. -65 °C to 150 °C
Operating Temperature ................................................. -40°C to +85°C
Lead Temperature (Soldering, 10 sec) ....................................... 300 °C
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation
sections of the specifications below is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may
affect reliability.
ELECTRICAL CHARACTERISTICS
V_IN=UV_IN=V_SDN=3.6V, V_OUT=V_FB, I_O = 0mA, T_AMB = -40°C to +85°C, typical values at 27°C unless otherwise noted.
PARAMETER
Input Voltage Operating
Range
FB Set Voltage
MIN TYP MAX UNITS
UVLO
5.5
V
0.735 0.75 0.765 V
CONDITIONS
T_A = 27°C, FB = COMP
FB Input Voltage
Overall FB Accuracy
FB Set Voltage (PFM Mode)
Switching Frequency
SYNC Tracking Frequency
SYNC Input Current
SYNC Logic Threshold Low
SYNC Logic Threshold High
PWM On-Time Blanking
PMOS Switch Resistance
NMOS Switch Resistance
Inductor Current Limit (PWM Mode)
Inductor Current Limit (PFM Mode)
LX Leakage Current
S_VIN Quiecent Current
P_VIN Quiecent Current
UVLO
Undervoltage Lockout
Threshold, V_IN falling
UVLO hysteresis
Soft Start Current
SD\, MODE Input Current
SD\, MODE Logic Threshold Low
SD\, MODE Logic Threshold High
Slope Compensation
Rising Over-Temperature Trip Point
Over-Temperature Hysteresis
ERROR AMPLIFIER
Error Amplifier Transconductance
Error Amplifier Output Impedance
Error Amplifier Max Sink Current
Error Amplifier Max Source Current
-1 0.01 1
µA
-4
4
%
0.758
V
1
1.2 1.4 MHz
1
1.2 1.4 MHz
-1 0.01 1
µA
0.3 0.6
Ω
1.7
50
ns
0.25 0.6
Ω
0.25 0.6
Ω
1.2 1.4 1.6
A
300
mA
0.1
3
µA
60 100 µA
2 TBD nA
1
500 mA
102 TBD µA
1
500
2.6 2.7 2.8
V
V_FB = 0.8V
FB = COMP
SD\=0V
PFM Mode
PWM Mode
Shutdown, SD\=0V
V_COMP = 0.6V
I_LX = 0
PWM Mode
6
%
1
2
3
µV
-1 0.01 1
µA
0.4
V
1.6
V
700
mA/µs
140
°C
14
°C
0.5
1
1.5 mS
1
mΩ
15
40
60
µA
15
40
60
µA
V_COMP = 1V
Note: This thermal Resistance Figure Applies only to a package with the exposed pad soldered to a PCB.
Faliure to do this results in, approximately, a three-fold increase in thermal resistance.
Date:5/25/04
SP6652 1A, High Efficiency, High Frequency Current Mode PWM Buck Regulator
2
© Copyright 2004 Sipex Corporation