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GS-R12FP
Features
■ MTBF 1 000 000 hours (TA = 25° C)
■ 1.9A max output current
■ 16V max input voltage
■ 1.5V max drop-out voltage
■ Remote logic inhibit/enable
■ Synchronization
■ Not-latching overload and short circuit
protection
■ Thermal shutdown
■ Fixed or adjustable output
■ No heatsink required
■ Operating temperature range -25°C ÷ 85°C
Description
The GS-R12FP series is a family of high
efficiency step down switching voltage regulator,
designed to replace linear regulators.
Based on L5973AD device, this non isolated
family of regulators are suitable for the full
spectrum of applications including telecom,
industry, computer and distributed power system
applications having a widely ranging input
voltage.
1.9A DC/DC converter modules
Preliminary Data
Packing type: V = vertical PTH
Packing type: S = horizontal SMD
Order codes
Part number
GS-R12FP0181.9
GS-R12FP0251.9
GS-R12FP0331.9
GS-R12FP0501.9
GS-R12FP0001.9
Output Voltage
[V]
1.8 ± 4%
2.5 ± 4%
3.3 ± 4%
5.0 ± 4%
1.235 ÷ 5.5
Input Voltage
[V]
4.5 ÷ 15
4.5 ÷ 15
4.5 ÷ 15
6.6 ÷ 15
4.5 ÷ 15
Output Ripple Efficiency
[mVpp]
[%]
Notes
25 63 - 68 Fixed output voltage
25 70 - 73 Fixed output voltage
25 74 - 77 Fixed output voltage
25 82 - 83 Fixed output voltage
25 61 - 83 Progr. output voltage
October 2006
Rev 1
This is preliminary information on a new product in development or undergoing evaluation.
Details are subject to change without notice.
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Contents
Contents
GS-R12FP
1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Pin connection and mechanical data (dimensions in mm) . . . . . . . . . . . . . 3
1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Thermal de-rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Reference voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3 Inhibit function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.4 Multiple units synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5 Current limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.6 Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.7 Output voltage programming (GS-R12FP0001.9 . . . . . . . . . . . . . . . . only) 8
4.8 Loop compensation (GS-R12FP0001.9 only) . . . . . . . . . . . . . . . . . . . . . . 8
5 Additional features and protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Output overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Ordering scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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