SOT-89 Step up Switching Regulator with Shutdown
Electrical Characteristics ILC6370BP-50
V
OUT
= 5.0V, F
OSC
= 100kHz, T
A
= 25°C; Test Circuit of figure 1
Parameter
CE “High” Current
CE “Low” Current
L
X
Limit Voltage
Efficiency
Symbol
I
CEH
I
CEL
V
LXLMT
EFFI
Conditions
L
X
: 10kΩ pull-up to 5V, V
CE
= V
OUT
= 4.5V
=
L
X
: 10kΩ pull-up to 5V, V
OUT
4.5V, V
CE
= 0V
(1)
L
X
: 10kΩ pull-up to 5V, V
OUT
= 4.5V, F
OSC
> F
OSC
x 2
Min
Typ
Max
0.25
-0.25
1.1
Units
µA
µ
V
%
0.7
85
1. Switching frequency determined by delay time of internal comparator to turn L
X
“OFF,” and minimum “ON” time as
determined by MAXDTY spec.
Electrical Characteristics ILC6371BP-50
V
OUT
= 5.0V, F
OSC
= 100kHz, T
A
= 25°C; Test Curcuit of figure 2.
Parameter
Output Voltage
Input Voltage
Oscillation Startup Voltage
Supply Current 1
Supply Current 2
EXT “High” On-Resistance
EXT “Low” On-Resistance
Oscillator Frequency
Maximum Duty Ratio
Stand-by Current
CE “High” Voltage
CE “Low” Voltage
CE “High” Current
CE “Low” Current
Efficiency
Slow Start Time
Symbol
V
OUT
V
IN
V
ST
I
DD
1
I
DD
2
R
EXTH
R
EXTL
F
OSC
MAXDTY
I
STB
V
CEH
V
CEL
I
CEH
I
CEL
EFFI
T
SS
Conditions
Min
4.87
5
Typ
5.000
Max
5.125
10
0.8
64.1
13.8
50
50
115
92
0.5
0.75
0.20
0.25
-0.25
85
10
Units
V
V
V
µA
µA
Ω
Ω
kHz
%
µA
V
V
µA
µA
%
msec
EXT: 10kΩ pull-up to 5V, V
OUT
= V
ST
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V
EXT: 10kΩ pull-up to 5V, V
OUT
= 5.5V
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V,
V
EXT
= 4.1V
V
EXT
= 0.4V, V
OUT
= 5.5V
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V,
Measuring of EXT pin
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V,
Measuring of EXT pin
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V,
Existance of L
X
Oscillation
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V,
Stopped L
X
Oscillation
EXT: 10kΩ pull-up to 5V, V
OUT
= V
CE
= 4.5V
EXT: 10kΩ pull-up to 5V, V
OUT
= 4.5V, V
CE
= 0V
38.4
6.9
30
30
100
87
85
80
Impala Linear Corporation
ILC6370/1 1.3
(408) 574-3939
www.impalalinear.com
July 1999
3
IMPALA [ Impala Linear Corporation ]
