PSA_1 Datasheet, PDF (1/11 Pages) Power-One – Positive Switching Regulators

PSA Series Extended Data Sheet
Positive Switching Regulators (Benign)
Input voltage up to 60 V DC
Single output of 3.3...24 V DC
No input to output isolation
• High efficiency up to 93%
• Wide input voltage range
• Low input to output differential voltage
• Very good dynamic properties
• Input undervoltage lock-out
• Parallel configurations possible
• Continuous no-load and short-circuit proof
• No derating
Safety according to IEC/EN 60950
25
1.0"
50
2.0"
70
2.8"
Summary
The PSA series of positive switching regulators is de-
signed as power supply modules for electronic systems.
Their major advantages include a high level of efficiency
that remains virtually constant over the entire input range,
high reliability, low ripple and excellent dynamic response.
Modules with input voltages up to 60 V are specially de-
signed for secondary switched and battery driven applica-
tions. The case design allows operation at nominal load up
to 50°C without additional cooling.
Type Survey and Key Data
Table 1: Type survey
Output
voltage
U_{o nom} [V]
5.1
Output
current
I_{o nom} [A]
2
Input
voltage range
U_i [V] ¹
8...40
5.1
5
7...35
12
3
15...40
15
3
19...40
24
2.5
29...60
1 _{See also: Electrical Input Data: DUio min.}
2 _{Efficiency at Ui nom and Io nom.}
Input
voltage
U_{i nom} [V]
20
20
20
30
40
Efficiency ²
η_min [%]
75
83
89
90
93
Type
designation
PSA 5A2-2
PSA 5A5-2
PSA 123-2
PSA 153-2
PSA 242.5-2
Options
package
iRY
Table of Contents
Page
Summary ......................................................................... 1
Type Survey and Key Data .............................................. 1
Type Key .......................................................................... 2
Functional Description ..................................................... 2
Electrical Input Data ........................................................ 3
Electrical Output Data ..................................................... 4
Electromagnetic Compatibility (EMC) ............................. 6
Page
Immunity to Environmental Conditions ........................... 6
Mechanical Data .............................................................. 7
Safety and Installation Instructions ................................. 7
Description of Options ..................................................... 9
Accessories ................................................................... 10
EC Declaration of Conformity ....................................... 11
REV. SEP 17, 2003
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