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1000 mA DC-DC Step Down Converter P78B-Series
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Non isolated
3 Pin SIL
Pin compatible with 78xx linear regulator
Efficiency up to 97%
Operating temperature range -40...+85°C
Continuous short circuit protected
Thermal shut down
Model selection guide
Typ
P78B1R5T10
P78B1R8T10
P78B2R5T10
P78B3R3T10
P78B05T10
P78B6R5T10
P78B09T10
P78B12T10
P78B15T10
Input voltage
range
Input current
No-load
Voltage
Output
Current
[VDC]
4.75...26
4.75...26
4.75...28
4.75...28
6.5...32
9...32
12...32
16...32
20...32
[mA]
5…8
5…8
5…8
5…8
5…8
5…8
5…8
5…8
5…8
[VDC]
1.5
1.8
2.5
3.3
5.0
6.5
9.0
12.0
15.0
[mA]
1000
1000
1000
1000
1000
1000
1000
1000
1000
Capacitive
load max.
[µF]
1000
1000
1000
1000
1000
1000
1000
1000
1000
Efficiency
@ Vin min. @ Vin max.
[%]
[%]
80
83
88
90
93
94
95
96
97
71
74
80
83
88
90
92
94
94
Suffix “B” for bent lead version
Specifications
Output
Voltage accuracy
Input voltage regulation
Load regulation
Temperature coefficient
Ripple and noise
(at 20 MHz BW)
Short circuit protection
Thermal shutdown
Output current limit
Input
Short circuit input power
General
Switching frequency
Reliability calc. MTBF @
25°C MIL-HDBK-217F
± 3 %, max.
± 0.4 %, max.
± 0.6 % @ load 10..100 %
± 0.02 % / °C
35 mVp-p, max.
not limited, automatic
recovery
150 °C, typ. internal temp.
3 A, typ.
1.8 W, max.
330 kHz, typ.
>2 Mio. h
Environmental
Operating ambient
temperature
Case temperature
Storage temperature
Derating
Humidity
Cooling
Physical
Dimensions
Weight
Case material
Soldering temperature
1,5mm distance from case
-40 °C ... +85 °C
100 °C, max.
-55 °C ... +125 °C
see diagram
Up to 95%,
non-condensing
free air convection
SIP3
17.5 x 11.5 x 9 mm
3.7 g
Plastic UL94-V0
300°C for 10s
Page 1 of 4
Deutschland:
Inselkammerstraße 10
D-82008 Unterhaching
Tel.: 089 614 503-10
E-Mail: [email protected]
Schweiz:
Gründenstrasse 82
CH-8247 Flurlingen
Tel.: 052 647 42 00
E-Mail: [email protected]
1000 mA DC-DC Step Down Converter P78B-Series
Page 2 of 4
Deutschland:
Inselkammerstraße 10
D-82008 Unterhaching
Tel.: 089 614 503-10
E-Mail: [email protected]
Schweiz:
Gründenstrasse 82
CH-8247 Flurlingen
Tel.: 052 647 42 00
E-Mail: [email protected]
1000 mA DC-DC Step Down Converter P78B-Series
Dimensions
Standard version
Bent version
Pin
1
2
3
Connections
+V Input
GND
+V Output
Page 3 of 4
Deutschland:
Inselkammerstraße 10
D-82008 Unterhaching
Tel.: 089 614 503-10
E-Mail: [email protected]
Schweiz:
Gründenstrasse 82
CH-8247 Flurlingen
Tel.: 052 647 42 00
E-Mail: [email protected]
1000mA DC-DC Step Down Converter P78B-Series
Fig. 1 Typical regulator circuit
+Vout
P78B
+Vin
C1
See tabel
C2
See tabel
GND
GND
Fig. 3
Input filter circuit
+Vin
+Vout
P78B
10~47µH
10µF
ceramic
10µF
ceramic
GND
GND
Fig. 4
Output filter circuit
P78B
+Vin
+Vout
10~47µH
22µF
ceramic
10µF
ceramic
10µF
ceramic
GND
GND
Part number
P78B1R5T10
P78B1R8T10
P78B2R5T10
P78B3R3T10
P78B05T10
P78B6R5T10
P78B09T10
P78B12T10
P78B15T10
C1
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
10 µF, 50V, ceramic
C2
22 µF, 6.3V, ceramic
22 µF, 6.3V, ceramic
22 µF, 6.3V, ceramic
22 µF, 6.3V, ceramic
22 µF, 16V, ceramic
10 µF, 16V, ceramic
10 µF, 16V, ceramic
10 µF, 25V, ceramic
10 µF, 25V, ceramic
1. C1 and C2 are required and should
be fitted close to the converter pins.
2. The capacitance of C1, C2 sees
external capacitor table. It can be
increased properly if required, and
tantalum or
low ESR electrolytic capacitors may
also suffice.
3. Not for parallel connection or plug
and play operation!
PHI-CON is a trademark of HY-LINE Holding GmbH.
Only for professional use by professionals! Not for resale or distribution to the general public in any way! Read the instructions for
use carefully before using!
Life Support Policy: HY-LINE does not authorize the use of any of its products for use in life support devices or systems without
the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and
whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably
expected to result in significant injury to the user. Rev: 11.14 f
Page 4 of 4
Deutschland:
Inselkammerstraße 10
D-82008 Unterhaching
Tel.: 089 614 503-10
E-Mail: [email protected]
Schweiz:
Gründenstrasse 82
CH-8247 Flurlingen
Tel.: 052 647 42 00
E-Mail: [email protected]
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