Features
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Efficiency up to 94%,Non isolated,
no need for heatsinks
SMD Package (UL94V-0 Material )
Adjustable Output Voltage
Wide input range.(4.75V ~ 18V)
Short circuit protection, Thermal shutdown
Remote On/Off Control
Very Low Shutdown Current
INNOLINE
DC/DC-Converter
Selection Guide
Part
Number
SMD
R-78A1.8-1.0SMD
R-78A2.5-1.0SMD
R-78A3.3-1.0SMD
R-78A5.0-1.0SMD
Input
Range (1)
(V)
4.75 – 18
4.75 – 18
4.75 – 18
6.5 – 18
Output
Voltage
(V)
1.8
2.5
3.3
5.0
Adjust
Range
(V)
1.5~3.3
1.5~4.5
1.8~5.5
2.5~5.5
Output
Current
(A)
1.0
1.0
1.0
1.0
Efficiency
Min. Vin Max. Vin
(%)
(%)
82
87
91
94
71
77
81
86
R-78Axx-
1.0SMD
Series
1.0 AMP
SMD
Single Output
Description
The R-78Axx-1.0SMD series high efficiency switching regulators are ideally suited to pick-and-place mass
production. The efficiency of up to 94% means that very little energy is wasted as heat. remote on/off control
and adjustable output voltage are useful additional features of this versatile SMD converter series.
Specifications
( typical at 25°C, 10% minimum load, unless otherwise specified )
Characteristics
Input Voltage Range (Note 1)
Output Voltage Range
Output Current
Output Current Limit
Short Circuit Input Current
Internal Power Dissipation
Short Circuit Protection
Output Voltage Accuracy (At 100% Load)
Adjustable Voltage Range
Load Regulation (10% to 100% full load)
Dynamic Load Stability
Ripple & Noise (20MHz BW)
Temperature Coefficient
Max capacitance Load
Switching Frequency
Quiescent Current
Shutdown Current
Remote On/Off Threshold Voltage
ON/OFF Remote Control
Operating Temperature Range
Switch On/Off Time
Operating Case Temperature
Storage Temperature Range
Case Thermal Impendance
Thermal Shutdown
Package Weight
MTBF (+25°C)
.
(+71°C)
Internal IC junction
using MIL-HDBK 217F
using MIL-HDBK 217F
+160°C
2.7g
13338 x 10³ hours
3880 x 10³ hours
151
-55°C
0.8
ON: Open or 1.6<Vr<5V, OFF: GND or 0<Vr<1.6V
-40°C
(using Remote On/Off Control)
Vin = min. to max. at 0% load
280
350
5
20
1.2
-40°C~+85°C ambient
100%<>50% load
All Series
See Table 1
0.2
0.7
±2
Conditions
See Table
See Table
All Series
All Series
All Series
Min.
4.75
1.5
0
Typ.
Max.
18.0V
5.5V
1000mA
3000mA
30mA
0.4W
Continuous, automatic recovery
±3%
±50%
0.4%
1.0%
Line Voltage Regulation (Vin = min to max at full load)
±85mV ±100mV
20mVp-p 30mVp-p
0.015%/°C
220µF
430kHz
7mA
35µA
1.6V
+85°C
50ms
+100°C
+125°C
70°C / W
Output Power (%)
Derating-Graph
(Ambient Temperature)
120
100
80
60
40
30
20
0
-40
Ir=1.8uA typ.
Safe Operating Area
0
25
50
Operating Temperature (°C)
60
85
75
100
}
Detailed Information see
Application Notes chapter "MTBF"
www.recom-international.com
04-April-2007
RECOM [ RECOM INTERNATIONAL POWER ]
