ST1638 Stanson Technology, ST1638 Datasheet - Page 5

• Manufacturer Part Number: ST1638
• Description: Step-Up DC/DC Converter High Efficiency PFM
• Manufacturer: Stanson Technology

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