SP6136 Datasheet, PDF (2/18 Pages) Sipex Corporation – Synchronous Buck Controller

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 maxi-
mum rating conditions for extended periods of time may affect reliability.
VCC .................................................................................................. 6V
VIN .............................................................................................. 24.5V
BST................................................................................................ 30V
BST-SWN......................................................................................... 7V
SWN.....................................................................................-2V to 24V
GH...........................................................................-0.3V to BST+0.3V
GH-SWN.......................................................................................... 6V
ABSOLUTE MAXIMUM RATINGS
Peak Output Current < 10µs
GH,GL.............................................................................................. 2A
Storage Temperature................................................... -65°C to 150°C
Power Dissipation........................................................................... 1W
ESD Rating........................................................................... 2kV HBM
Thermal Resistance.............................................................. 41.9°C/W
All other pins............................................................-0.3V to VCC+0.3V
ELECTRICAL SPECIFICATIONS
Unless otherwise specified: -40°C < T_AMB < 85°C, 4.5V < V_CC < 5.5V, BST=V_CC, SWN = GND = PGND = 0.0V, UV_IN = 3.0V, CV_CC
= 10µF, C_COMP = 0.1µF, CGH = CGL = 3.3nF, C_SS = 50nF, R_PWRGD = 10KΩ.
PARAMETER
MIN TYP
QUIESCENT CURRENT
VIN Supply Current
1.5
VCC Supply Current
1.5
BST Supply Current
0.2
PROTECTION: UVLO
VCC UVLO Start
Threshold
4.00 4.25
VCC UVLO Hysteresis 150 200
UVIN Start Threshold
2.35 2.50
UVIN Hysteresis
200 300
VIN Start Threshold
9.0 9.5
VIN Hysteresis
300
Enable Pullup Current
0.4
ERROR AMPLIFIER REFERENCE
Error Amplifier Reference 0.792 0.800
Error Amplifier Reference
Over Line and Tempera- 0.788 0.800
ture
COMP Sink Current
70 150
COMP Source Current -230 -150
VFB Input Bias Current 1
50
COMP Common Mode
Output Range
1.9 3.0
COMP Pin Clamp
Voltage
3.2 3.5
MAX
3.0
3.0
0.4
4.5
250
2.65
400
10.0
0.808
0.812
230
-70
100
3.2
3.8
UNITS CONDITIONS
mA VFB = 1V (no switching)
mA VFB = 1V (no switching)
mA VFB = 1V (no switching)
V
mV
V Apply voltage to UVIN pin
mV Apply voltage to UVIN pin
V UVIN Floating
mV UVIN Floating
µA Apply voltage to EN pin
V 2X Gain Config.
V
µA
µA
nA
V
V VFB = 0.7V
Oct 31-06 Rev L
SP6136 Synchronous Buck Controller

© 2006 Sipex Corporation