R-78T-1.0 Datasheet, PDF (1/4 Pages) Recom International Power – 1.0 AMP SMD Single Output

Features
● Efficiency up to 95%, no Need for Heatsinks!
● Industry Standard Pin-Out
● 1.5A Start-Up Overload Capacity
● Non-Isolated Regulator with very low Standby
Current
● Wide Input Range (7V ~ 42V)
● Short Circuit Protection
● Fixed Switching Frequency (350kHz), Shielded
Magnetics
Description
The R-78T is a switching regulator with a wide input voltage range and a low profile SMD package. Three output
voltages are available as standard: 3.3V, 5V and 12V. Due to the 1.5A start-up overload capability, the R-78T can
be used to replace 1A or 1.5A regulators in many applications. These modules come with three different styles to
be pin-compatible with existing solutions, but at a lower cost.
Selection Guide
Part
Number
SIP3
R-78T3.3-1.0*
Input
Range
(V)
7 – 42
Output
Voltage
(V)
3.3
Output
Current
(A)
1.0
Efficiency
Min. Vin Max. Vin
(%)
(%)
88
79
R-78T5.0-1.0*
8 – 42
5.0
1.0
92
85
R-78T12-1.0*
15 – 42
12
1.0
95
92
*add suffix /FC, /AC or /AL for required pinning option
* add suffix -R for tape&reel packing e.g. R-78T3.3-1.0/FC-R.
-Tray for Tray packaging, e.g. R-78T5.0-1.0/AC-Tray For more details see Application Notes.
Specifications ( typical at 25°C, 10% minimum load, unless otherwise specified )
Input Voltage Range
No Load Input Current
Input Filter
Voltage Accuracy
Line Regulation
Load Regulation
Minimum Load
Ripple & Noise (20MHz Limited)
Transient Response 50mA/uS
Operating Frequency
Current Limit
Short Circuit Protection
Operating Temperature
Storage Temperature
Humidity
Dimension
Weight
Cooling Method
MTBF (25°C)
3.3V
5V
12V
(LL to HL at Full Load)
(10-100%)
100% - 50% Load
suffix /AC or /AL
suffix /FC
MIL-HDBK-217F
7-42VDC
8-42VDC
15-42VDC
1mA typ.
C Filter
±2% typ. / ±3% max.
±0.2% typ.
±0.4% typ.
10%
50mVp-p typ. / 100mVp-p max.
±250mV max.
350KHz typ.
1.5A / 10sec max.
Current limited to 3.5A typ.
-40°C to 85°C
-55°C to 125°C
5% to 95% RH max.
23 x 27.2 x 10mm
23 x 29.4 x 8mm
4.5g typ.
Free Air Convection
367 x 10³ hours
Standard Application Circuit
+Vin
1 _R-78T5.0-1.0 3
+Vout
C1
Optional
2
C2
Optional
GND
GND
www.recom-power.com
REV: 1/2016
INNOLINE
DC/DC-Converter
with 3 year Warranty
1.0 AMP
SMD
Single Output
RoHS
2011/65/EU
6/6
R-78T-1.0
Derating-Graph
(Ambient Temperature)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40
10s
Overload
Safe Operating Area
0 25 50 75 ⁸⁵ 100
55
Operating Temperature (°C)
Refer to Application Notes
I-33