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ST78L09U Fiches technique(PDF) 1 Page - SEMTECH ELECTRONICS LTD.

No de pièce ST78L09U
Description  3-Terminal Positive Voltage Regulator
Download  2 Pages
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Fabricant  SEMTECH_ELEC [SEMTECH ELECTRONICS LTD.]
Site Internet  http://www.semtech.net.cn
Logo SEMTECH_ELEC - SEMTECH ELECTRONICS LTD.

ST78L09U Fiches technique(HTML) 1 Page - SEMTECH ELECTRONICS LTD.

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Dated : 05/09/2006
®
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
ST 78L09U
3-Terminal Positive Voltage Regulator
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Symbol
Value
Unit
Input Voltage
VI
35
V
Power Dissipation
Ptot
800
1)
mW
Operating Temperature
Topr
- 20 to + 120
O
C
Storage Temperature Range
Ts
- 55 to + 150
O
C
1) 15 mm X 25 mm X 0.7 mm alumina ceramic board, T
a ≤ 25
O
C
Electrical Characteristics (Ta = 25 OC)
(Unless otherwise specified, 0 OC ≤ TJ ≤ 125 OC, VI = 15 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF)
Parameter
Symbol
Test Condition
Min.
Typ.
Max.
Unit
Tj = 25 OC
8.64
9
9.36
V
11.4 V ≤ VI ≤ 24 V, 1 mA ≤ IO ≤ 40 mA
8.55
-
9.45
V
Output Voltage
VO
VI = 15 V, 1 mA ≤ IO ≤ 70 mA
8.55
-
9.45
V
11.4 V
≤ VI ≤ 24 V, Tj = 25 OC
-
-
200
Line Regulation
Regline
12 V
≤ VI ≤ 24 V, Tj = 25 OC
-
-
160
mV
1 mA ≤ IO ≤ 100 mA, Tj = 25 OC
-
-
90
Load Regulation
Regload
1 mA ≤ IO ≤ 40 mA, Tj = 25 OC
-
-
45
mV
Quiescent Current
IQ
Tj = 25 OC
-
-
6
mA
12 V
≤ VI ≤ 24 V, IO = 40 mA
-
-
1.5
Quiescent Current Change
ΔIQ
VI = 15 V, 1 mA ≤ IO ≤ 40 mA
-
-
0.1
mA
Output Noise Voltage
VN
10 Hz
≤ f ≤ 100 KHz, Tj = 25 OC
-
70
-
µV
Ripple Rejection
RR
f = 120 Hz, 12 V
≤ VI ≤ 24 V, Tj = 25 OC
38
-
-
dB
Dropout Voltage
VDrop
Tj = 25 °C
-
1.7
-
V
78L08U
VI
0.33 µF
VO
C2
C1
0.1 µF


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