PSR

PSR-78xxPW
PSR-SERIES
Rev.04-2015
 500 mA Switching Regulator
 Wide Input Volage Range
 SIP3 Plastic Package
 Non-Isolated & Non-Regulated
 Short Circuit Protection
 Low Ripple and Noise
Mainzer Straße 151–153
D-55299 Nackenheim
Tel. +49 6135 7026-0
Fax: +49 6135 931070
www.peak-electronics.de
[email protected]
The PSR series is a family of cost effective single output buck DC-DC
converters. These converters are encapsulated in a non conductive
black plastic 3-pin SIP case, continuous short circuit protection with
automatic restart, good line / load regulation and ultra low quiescence
current. Devices are filled up with flame retardant resin. High
performance features include high efficiency operation up to 94%.
All specifications typical at Ta=25°C, nominal input voltage and full load unless otherwise specified
Input Specifications
Voltage Range
Start up Time
Filter
Input Reflected Ripple Current (1)
Wide Input (See Table)
10mS, typ.
Capacitors
35mA pk-pk
Output Specifications
Voltage Accuracy
Output Current
Short Circuit Protection
Line Regulation
Load Regulation (10% - 100% load)
Ripple and Noise (20Mhz bandwidth)
Temperature Coefficient
Capacitor Load (2)
Transient Recovery Time (3)
Transient Response Deviation (3)
± 3%
5mA, min. / 500mA, max.
Indefinite (Automatic Recovery)
± 0.5%
± 0.8%
60 mV pk-pk
± 0.02% / °C
See Table
250 us, typ.
± 3%, max.
General Specifications
Efficiency
Switching Frequency
Humidity
Reliability Calculated MTBF (MIL-HDBK-217F)
See Table
570 kHz, typ.
95% rel H
> 4.0 Mhrs
Physical Specifications
Case Material
Potting Material
Weight
Non Conductive Black Plastic (UL94V-0 rated)
Epoxy (UL94V-0 rated)
~ 2.0 g
Environment Specifications
Operating Temperature (for 100%)
Maximum Case Temperature
Storage Temperature
Cooling
RoHS Conform
-40 to +70°C at 3.3Vout/5Vout
-40 to +65°C at 12Vout/15Vout
100°C
-55 to +125°C
Free Air Convection (10mm distance required)
Soldering 260°C, max (1.5mm from case 10sec.)
PSR-Series – PSR-78xxPW – Switching Regulator – SIP3 – Plastic Case
Specification can change without a notice – We accept no liability for any inaccuracy or printing errors.
Page 1/3
Selection Guide
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max
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) (%
.) (% uF)
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y (V citor Lo
ltag
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C
t
t
t
t
a
pu
cie
cie
Inpu
Inpu
Inpu
Inpu
Out
Effi
Effi
Cap
Order #
PSR-783R3PW
PSR-7805PW
PSR-7812PW
PSR-7815PW
4.5-28
7-28
14-28
17-28
1.0
1.0
1.5
2.0
411.99
388.20
455.93
469.33
78.57
111.61
238.10
291.15
3.3
5
12
15
89
92
94
94
75
80
90
92
100
100
100
47
If you need other specifications, please enquire.
Package / Pinning / Derating
7.50
(0.29)
4.00
(0.16)
Modelcode
Datecode
1
2
1
0.25
(0.01)
10.15
(0.40)
PEAK
5.08
(0.20)
3
2.54
(0.10)
0.50
(0.02)
3
Bottom View
Notes : All dimensions are typical in millimeters ( inches ).
1. Pin diameter: 0.5 ±0.05 ( 0.02±0.002 )
2. Pin pitch tolerance: ±0.35 ( ±0.014 )
3. Case Tolerance: ±0.5 ( ±0.02 )
#
1
2
3
Specification may change without notice. Pin length is typical.
TEMPERATURE DERATING GRAPH
2
2.00
(0.08)
11.68
(0.46)
PIN CONNECTIONS
Switching Reg.
+Vin
GND
+Vout
TEMPERATURE DERATING GRAPH
12V, 15V out
OUTPUT POWER
OUTPUT POWER
3.3V, 5V out
100%
75%
60
50%
40
25%
-40 -20
0
20
40
60
70
85
80
100
100%
75%
50%
40
25%
-40 -20
AMBIENT TEMPERATURE (°C)
0
20
40
65
60
85
80 100
AMBIENT TEMPERATURE (°C)
PSR-Series – PSR-78xxPW – Switching Regulator – SIP3 – Plastic Case
Specification can change without a notice – We accept no liability for any inaccuracy or printing errors.
Page 2/3
App Notes
EMC
Radiated Emission
Conducted Emissions
ESD
RS
EFT
Surge
CS
PFMF
EN55022, Class B
IEC 61000-4-2
IEC 61000-4-3
IEC 61000-4-4
IEC 61000-4-5
IEC 61000-4-6
IEC 61000-4-8
perf. Criteria A
perf. Criteria A
perf. Criteria A
perf. Criteria A
perf. Criteria A
perf. Criteria A
EMC Countermeasures
Input filter components (C1, C2,
L1) are used to help meet EMI &
EMS requirement for the module.
These components should be
mounted as close as possible to
the module. All leads should be
minimized to decrease radiated
noise.
C1
10uF, 35V
L1
6.8uH
C2
10uF, 35V
Standard Application Circuit
PSR-78xxPW
1.To protect the converter
during power-up, use soft
start Vin and C1=22uF
2. C2=47uF (optional)
Test Configuration
PSR-78xxPW
Input reflected ripple current is
measured through a source
inductor L1 (12uH) and a source
capacitor C1=47uF at nominal
input and full load.
------------------------------------------------------------------------------------------------------------------------------------------------------Notes:
1.
2.
3.
Input reflected ripple current is measured through a source inductor L1 (12uH) and a source capacitor
C1=47uF at nominal input and full load.
Tested by minimal Vin and constant resistive from 2% to 100& load
Tested by normal Vin and 25% load step change (75-20-25 % of Io)
PSR-Series – PSR-78xxPW – Switching Regulator – SIP3 – Plastic Case
Specification can change without a notice – We accept no liability for any inaccuracy or printing errors.
Page 3/3