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Part Name
Description
ST1638-XXS89 View Datasheet(PDF) - STANSON TECHNOLOGY
Part Name
Description
Manufacturer
ST1638-XXS89
Step-Up DC/DC Converter High Efficiency PFM
STANSON TECHNOLOGY
ST1638-XXS89 Datasheet PDF : 7 Pages
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5
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7
Step-Up DC/DC Converter
ST1638
High Efficiency PFM
ELECTRICAL CHARACTERISTICS
(Ta=25
℃
, Vcc=15V, unless otherwise specified.)
Symbol
△
V
OUT
I
IN
V
START
V
HOLD
I
IN
I
S1
I
S2
R
ON
Parameter
Output Voltage Accuracy
Input Voltage
Start Up Voltage
Hold On Voltage
Input Current at No Load
Supply Current
Supply Current
SW Switch-On Resistance
I
LEAKAGE
Fosc
D
OSC
SW Leakage Current
Max Oscillator Freq.
Oscillator Duty Cycle
Efficiency
Conditions
I
OUT
= 1 mA, V
IN
: 0
→
2V
I
OUT
= 1 mA, V
IN
: 2
→
0V
I
OUT
= 0 mA
V
S
= V
OUT
X 0.95
V
S
= V
OUT
+ 0.5V
V
S
= V
OUT
X 0.95,
V
SW
= 0.4V
V
SW
= 6V
V
S
= V
OUT
X 0.95
V
S
= V
OUT
X 0.95
Min.
-2.5
0.7
20
1
80
65
Typ. Max. Unit
2.5 %
6V
0.8 0.9 V
V
15
μ
A
70
μ
A
9
μ
A
1.3
Ω
0.5
μ
A
120 160 KHz
75 85 %
85
%
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
TEL: (650) 9389294 FAX: (650) 9389295
Page 5
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