LOW VOLTAGE MULTI-MODE
DC-DC CONVERTER
January 30, 1998
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, TA = 25°C, VIN = 3.0V
Parameter
Conditions
Min
Typ
Input Voltage
1.8
Default Output Voltage
Switch Off Current
IL = 200mA
4.80
5.00
105
Shutdown Mode Current
7
Recovery Time from Shutdown
VIN = 2.5V,IL = 200mA
0.4
Efficiency
IL = 300mA (5V Output Step-Up
85
Converter)
Line Regulation
Load Regulation
Oscillator Frequency
VIN = 2.2 - 3.3V
VOUT = 5V, IL = 100mA
IL = 10mA - 500mA
VOUT = 5V
0.6
2.5
90
120
LBI Pin Trip Point
1.22
EXT Pin Driving Capabilities
Pin 8 = 5V, Pin 3 = 0.85V
Sourcing
80
Sinking
50
LBO “ON Resistance”
VIN = 2V
45
Input Pin Bias Current
Output Pin Leakage
SC1630
Max Units
7.0
V
5.20
V
140
µA
15
µA
ms
%
%VOUT
%VOUT
150
kHz
V
mA
mA
Ω
10
nA/Pin
10
nA/Pin
TYPICAL APPLICATIONS
© 1997 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320