WRN78UXX-500 Datasheet, PDF (1/4 Pages) Microdc power Technology Co., Ltd – WIDEINPUTNON-ISOLATED & REGULATED SINGLEOUTPUT

WRN78UXX-500(B) Series
WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT
FEATURES
◆Efficiency up to 97%
◆Ultra wide input voltage range can up to 8:1
◆Operating temperature: -40°C ~ +85°C
◆Short circuit protection, thermal shutdown
◆Low ripple and noise
◆Micro miniature SIP package
◆ No heatsink required
◆ Industry standard pinout
◆MTBF>2,000,000 hours
Product Program
Part Number
Input Voltage(VDC)
Nominal
Range
Voltage
(VDC)
Output
Current
(MA)Min.
WRN78U03-500
48
9~72
3.3
10
WRN78U05-500
48
9~72
05
10
WRN78U6.5-500
48
9~72
6.5
10
WRN78U09-500
48
14~72
09
10
WRN78U12-500
48
17~72
12
10
WRN78U15-500
48
20~72
15
10
WRN78U24-300
48
36~72
24
10
WRN78U03-500B
48
9~72
3.3
10
WRN78U05-500B
48
9~72
05
10
WRN78U6.5-500B
48
9~72
6.5
10
WRN78U09-500B
48
14~72
09
10
WRN78U12-500B
48
17~72
12
10
WRN78U15-500B
48
20~72
15
10
WRN78U24-300B
48
36~72
24
10
Add suffix "B" for 90°bend pins, for example: WRN78U05-500B.
OUTPUT SPECIFICATIONS
Current
(MA)Max.
500
500
500
500
500
500
300
500
500
500
500
500
500
300
Efficiency(%,Typ)
Vin
(min.)
82
87
91
92
93
94
95
82
87
91
92
93
94
95
Vin
(max.)
75
81
84
86
89
90
91
75
81
84
86
89
90
91
MODEL SELECTION
WRN78^①U^②05^③-500^④(B)^⑤
①Product Series ②Ultra Wide (8:1) Input Range
③Output Voltage ④Output Currents
⑤Bend 90°pin
Item
Output voltage accuracy
Line regulation
Load regulation
Ripple & Noise
Short circuit input power*
Short circuit protection
Thermal shutdown
Switching frequency
Output current limit
Quiescent current
Test conditions
100% full load
Vin=min. to max. at full load
10% to 100% load
20MHz bandwidth (refer to figure 2)
Vin=Nominal
100% full load
Vin=Nominal
Vin=Nominal , Min. Load
APPLICATIONS
The WRN78Uxx-500(B) series high efficiency
switching regulators are ideally suited to replace
WRN78xx linear regulators and are pin compatible. The
efficiency of up to 97% means that very little energy is
wasted as heat so there is no need for any heat sinks with
their additional space and mounting costs.
MICRODC reserves the copyright
Tendencies load
From 10% to 100% Load
Temperature coefficient
-40℃ ~ +85℃ ambient
Max capacitance load
NOTE:”GND” Pin can not vacant,or it will damage the module.
COMMON SPECIFICATIONS
Item
Storage humidity
Operating temperature
Operating case temp.
Storage temperature
Lead temperature
Cooling
Case material
MTBF
Hop swap
Thermal resistance
Weight
Test conditions
Power derating (above 71℃)
1.5mm from case for 10 seconds
25℃（MIL-HDBK-217F）
71℃（MIL-HDBK-217F）
Min.
Typ.
Max.
Units
±2
±3
±0.4 ±1.0
%
±0.3 ±0.6
20
60
mVp-p
0.72
1.2
W
Continuous, automatic recovery
160
℃
120
800
KHz
700 1200
mA
1
5
±100
mV
1.0
1.5
ms
±0.015
%/℃
100
µF
Min.
Typ.
Max.
Units
-40
-55
3500
1500
95
%
85
65
100
℃
125
300
Free air convection
Plastic (UL94-V0)
k hours
Not supported
60
4
℃/W
g
http://www.microdc.cn Technical Enquiries-Email:[e-mail] Tel:[phone] Page 1 of 4