SC1401 Semtech Corporation, SC1401 Datasheet - Page 4

• Manufacturer Part Number: SC1401
• Description: HIGH PERFORMANCE SYNCHRONOUS BUCK CONTROLLER WITH LDO FOR PORTABLE POWER
• Manufacturer: Semtech Corporation

November 21, 2000
Note 1: Not tested.
© 2000 SEMTECH CORP.
ELECTRICAL CHARACTERISTICS (continued)
Unless specified: VDD1 = 12V, V5V = 5V, VDD2 = 12V
Gate Driver Sink/Source
Gate Driver On-Resistance
SYNC Input High Pulse
SYNC Input Low Pulse Width
SYNC Rise/Fall Time
SYNC Input Frequency Range
Current-Sense Input Leakage
FB Input Leakage Current
LINEAR REGULATOR
VDD2 Input Voltage Range
VOUT Linear
GATEIO Source current
IOS Input Leakage Current
Line Regulation
Load Regulation
SUPPLY CURRENTS
VDD1 Operating Supply
Shutdown Supply Current
V5V Operating Supply Current
VDD2 Supply Current
LINE PARAMETER
1
1
1
V5V = 5V, no load on DH/DL, PSAVE = 0V
VDD1 = 6V to 30V, V5V = 5V, SHDN = 0V
HIGH PERFORMANCE SYNCHRONOUS BUCK
CONTROLLER WITH LDO FOR PORTABLE
POWER
Vin=12V, ILOAD = 0.1A to 1A
VDD2=12V, GATEIO=0V
DL, DH, forced to 2V
SHDN = PSAVE = 5V, T
CSL = CSH = 5.5V
CONDITIONS
ILOAD=0.5A
VDD2 = 12V
IOS = 1.25V
High or low
FB = 1.25V
652 MITCHELL ROAD
A
= -40 °C to +85 °C. Typical values are at T
VREF
MIN
200
200
240
5.0
NEWBURY PARK CA 91320
TYP
0.03
0.85
2.0
1.0
2.6
1.5
15
5
MAX
30.0
200
350
5.5
20
50
25
1
1
4
5
A
= +25°C.
SC1401
UNITS
%/V
kHz
mA
mA
mA
µA
µA
µA
µA
µA
ns
%
A
V
V
4