SP6122_04 Datasheet, PDF (2/19 Pages) Sipex Corporation – Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters

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.
V_CC .............................................................................................................. 7V
All other pins ...................................... -0.3V to V_CC+0.3V
Peak Output Current < 10µs
PDRV ......................................................................... 2A
Storage Temperature .............................. -65°C to 150°C
Power Dissipation
Lead Temperature (Soldering, 10 sec) ................. 300°C
ESD Rating ...................................................... 2kV HBM
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: 0°C < T_AMB < 70°C, 3.0V < V_CC < 5.5V, C_PDRV = 1nF, V_ENABLE = V_CC, V_FFLAG = V_CC,
I_SET = I_SENSE = V_CC, GND = 0.0V
PARAMETER
MIN
TYP MAX UNITS CONDITIONS
QUIESCENT CURRENT
V_CC Supply Current,
OVC Enabled
-
V_CC Supply Current,
OVC Disabled
-
V_CC Supply Current,
-
OVC Disabled, Ultra Low IQ
V_CC Supply Current, Sleep Mode
-
300
450
µA
250
360
µA
150
225
µA
5
15
µA
REFERENCE
Output Voltage, Initial Accuracy VR*0.985 VR VR*1.015 V
Output Voltage, Over Line,
Load and Temperature
Reference Comparator
Hysteresis
V_OUT Input Current
VR*0.980 VR VR*1.020 V
-
5
-
mV
-
23
-
µA
No Switching, I_SET = I_SENSE = V_CC
No Switching, I_SET = I_SENSE = 0
No Switching, ISET = 0,
I_SENSE=V_CC
Enable=0
VR = Factory Set Voltage,
see Note
VR = Factory Set Voltage,
see Note
Internal Hysteresis at Feedback
Terminal
V_OUT = VR;
SP6122ACU-1.5 ONLY
OSCILLATOR
Oscillator Frequency
Minimum Pulse Width during
Startup (Blanking Time)
210
300
390
kHz
150
270
380
ns
Soft Start
Soft Start Ramp Time
Soft Start Voltage when
PDRV Switches
-
3.5
-
ms V_OUT = VR – 30mV, Measure
time from ENABLE = 1V to
PDRV Low
-
250
-
mV Measure VSoft Start when
PDRV goes Low. (internal)
Date: 10/02/04
SP6122 Low Voltage, Micro 8, PFET, Buck Controller
2
© Copyright 2004 Sipex Corporation