VER : B_0
update : 2012.01.20
Encapsulated DC-DC Converter
SR78/1000 SERIES
1 A
KEY FEATURES
A Type
SIP-Package Fits Existing TO-220 Footprint
Pin Compatible with LMxx Linear Regulators
Efficiency up to 96%,Non Isolated, No Need for Heatsinks
Wide Input Operating (4.6V~36V)
PIN material: Metal
(Nickel Plate Brass)
Non Standard Outputs Available as Specials Between 1.5V~15V
Short Circuit Protection
Over-Current Protection & Over-Temperature protection
UL94V-0 Package Material
Meet EN55022 Class A Conducted Emissions& Radiated Emissions(Note 3)
Meet EN55022 Class BConducted Emissions& Radiated Emissions(Note 4)
3-Years Product Warranty
All specifications are typical at normal input voltage, full load and +25°C otherwise noted。
ELECTRICAL SPECIFICATIONS
Model No. ( Single Output )
Max Output Wattage (W)
Input Voltage Range (V.DC.)
Output Voltage (V.DC.)
SR78-1.5S/1000
1.5W
SR78-1.8S/1000
1.8W
SR78-2.5S/1000
2.5W
SR78-3.3S/1000
3.3W
SR78-5S/1000
5W
4.6-36V
4.6-36V
4.6-36V
4.75-36V
6.5-36V
1.5V / 1000mA
1.8V / 1000mA
2.5V / 1000mA
3.3V / 1000mA
5.0V / 1000mA
Efficiency(Min. Vin) (typ.)
Efficiency(Max. Vin) (typ.)
76%
66%
80%
71%
85%
76%
88%
80%
93%
85%
Model No. ( Single Output )
Max Output Wattage (W)
Input Voltage Range (V.DC.)
Output Voltage (V.DC.)
SR78-6.5S/1000
6.5W
SR78-9S/1000
9W
SR78-12S/1000
12W
SR78-15S/1000
15W
8.0-36V
11-36V
15-36V
18-34V
6.5V / 1000mA
9.0V / 1000mA
12V / 1000mA
15V / 1000mA
Efficiency(Min. Vin) (typ.)
Efficiency(Max. Vin) (typ.)
93%
87%
95%
90%
95%
92%
96%
93%
SR78-1.5
S/1000
SR78-1.8
S/1000
SR78-2.5
S/1000
SR78-3.3
S/1000
SR78-5S
/1000
SR78-6.5
S/1000
SR78-9S
/1000
SR78-12
S/1000
SR78-15
S/1000
Model No.
( Single Output )
1.5W
1.8W
2.5W
3.3W
5W
6.5W
9W
12W
15W
Max Output Wattage (W)
Input Voltage Range (V.DC.)(Note 1)
4.6-36V
9 VDC
4.6-36V
4.6-36V
4.75-36V
12 VDC
6.5-36V
8.0-36V
11-36V
24 VDC
15-36V
18-34V
Nominal input
Input filter
Input
C filter
Voltage (V.DC.)
1.5V
±3%
1000
1.8V
2.5V
3.3V
5.0V
6.5V
9.0V
12V
15V
Voltage Accuracy (at Full Load)
Current (mA) (max.)
Quiescent Current (mA) (max.)
Minimum Load (Note 2)
1~2 (Vin=min. to max. at 0% Load)
0%
Output
Line Regulation (LL-28V) (typ.) (Note 1)
±1% (at full load)
±0.8% (Nominal input)
50mV
500KHz
470uF
Load Regulation (10-100%) (typ.)
Ripple&Noise (Nominal Input) (20MHz)
Switching Frequency (typ.)
Capacitor Load (max)
Current Limit (mA) (max.)
Short Circuit Protection
Thermal Shout Down (typ.)
Operating Temperature
Storage Temperature
Operating Case Temperature
Case Thermal Impendance (max.)
Humidity
75mV
100mV
120mV
2000
Protection
Continuous, auto-recovery
+160°C (Internal IC Junction)
-40°C…+85°C (with derating)
-55°C…+125°C
+100°C max.
Environment
70°C / W
95% RH
MTBF
5,358,000 h @ 25°C (MIL-HDBK-217F)
Dimension (L x W x H)
Case Material
0.45 x 0.40 x 0.3 Inches ( 11.5 x 10.2 x 7.55 mm ) Tolerance ±0.25 mm
Non-conductive black plastic
1.9 g
EN 55022 Class A(Note3)
EN 55022 Class A(Note3)
Physical
EMC
Weight
Conducted Emissions
Radiated Emissions
Conducted Emissions
Radiated Emissions
EN 55022 Class B(Note4)
EN 55022 Class B(Note4)
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TEL: +886-2-26989508 FAX: +886-2-26981319
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