SP6120 Datasheet, PDF (2/22 Pages) Sipex Corporation – Low Voltage, AnyFETTM, Synchronous ,Buck Controller Ideal for 2A to 10A, High Performance, DC-DC Power Converters

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.
V_CC ............................................................................... 7V
BST ........................................................................ 13.2V
BST-SWN .................................................................... 7V
SWN .................................................................. -1V to 7V
GH ..................................................... -0.3V to BST +0.3V
GH-SWN ..................................................................... 7V
All Other Pins ....................................... -0.3V to V_CC +0.3V
ABSOLUTE MAXIMUM RATINGS
Peak Output Current < 10µs
GH, GL ........................................................................ 2A
Operating Temperature Range
SP6120C ................................................ 0°C to +70°C
SP6120E .............................................. -40°C to +85°C
Junction Temperature, T_J ...................................... +125°C
Storage Temperature Range .................. -65˚C to +150˚C
Power Dissipation
Lead Temperature (soldering 10 sec) ................... +300˚C
ESD Rating ........................................................ 2kV HBM
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: 3.0V < V_CC <5.5V, 3.0V < BST < 13.2, R_OSC = 18.7kΩ, C_COMP = 0.1µF, C_SS = 0.1µF, ENABLE = 3V,
CGH = CGL = 3.3nF, V_FB = 1.25V, ISP = ISN = 1.25V, SWN = GND = PGND = 0V, -40°C < T_AMB <85°C (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
QUIESCENT CURRENT
V_CC Supply Current
V_CC Supply Current (Disabled)
BST Supply Current
No Switching
ENABLE = 0V
No Switching
-
0.95
1.8
mA
-
5
20
µA
-
1
20
µA
ERROR AMPLIFIER
Error Amplifier Transconductance
600
µS
COMP Sink Current
V_FB = 1.35V, COMP = 0.5V, No
Faults
15
35
65
µA
COMP Source Current
COMP Output Impedence
V = 1.15V, COMP = 1.6V
FB
15
35
3
65
µA
MOhm
V_FB Input Bias Current
REFERENCE
-
60
100
nA
Error Amplifier Reference
Trimmed with Error Amp in Unity
1.238
1.250
1.262
V
Gain
V_FB 3% Low Comparator
V_FB 3% High Comparator
OSCILLATOR & DELAY PATH
|-3|
%VREF
3
%VREF
Oscillator Frequency
270
300
330
kHz
Oscillator Frequency #2
Duty Ratio
R_OSC = 10.2kOhm
Loop In Control -100% DC
possible
450
500
550
kHz
95
%
R_OSC Voltage
Information Only - Moves with
Oscillator Trim
0.65
V
Minimum GH Pulse Width
V_CC > 4.5V, Ramp up COMP
Voltage > 0.6V until GH starts
Switching
120
ns
Date: 5/25/04
SP6120 Low Voltage, AnyFET^TM, Synchronous, Buck Controller
2
© Copyright 2004 Sipex Corporation