WRN78XXT-1000 Datasheet, PDF (1/5 Pages) Microdc power Technology Co., Ltd – WIDEINPUT,NON-ISOLATED®ULATED SMDPACKAGE SINGLEOUTPUT

WRN78XXT-1000 Series
WIDE INPUT, NON-ISOLATED & REGULATED SMD PACKAGE SINGLE OUTPUT
FEATURES
◆Efficiency up to 92%
◆No heatsink required
◆1.0AMP SMD package
◆Super low ripple and noise
◆Adjustable output voltage
◆Remote ON/OFF control
◆Short circuit protection
◆Low control current
◆Operating temperature: -40℃~ +85℃
MODEL SELECTION
WRN78^①05^②T^③-1000^④
①Product Series
②Output Voltage
③SMD Package Style ④Output Current
APPLICATIONS
The WRN78xxT-1000 series with high efficiency
switching regulators are ideally supply for space
constrained mobile applications. There is no need for any
heatsinks. The additional features include remote ON/OFF
control and adjustable output voltage. Super low ripple
and noise of typically only 20mV and Low control current.
PRODUCT PROGRAM
Part Number
Input Voltage(VDC)
Nominal Range
Input
Current
(mA)
Output Voltage
(VDC)
Normal
Adjust
Range
WRN781.5T-1000
12
5.0-18
165
1.5
fixed
WRN781.8T-1000
12
5.0-18
190
1.8
1.5-3.6
WRN782.5T-1000
12
5.0-18
245
2.5
1.5-3.9
WRN7803T-1000
12
5.0-18
320
3.3
1.8-5.5
WRN7805T-1000
12
7.0-18
460
5.0
2.5-6.5
WRN786.5T-1000
12
8.5-18
580
6.5
fixed
Note: To adjust the output voltage must be met Vin-Vo>2V.
Input Current measured at nominal input voltage and rated output load.
Current
(mA)
1000
1000
1000
1000
1000
1000
Efficiency(%,Typ)
Vin
(min.)
Vin
(max.)
76
73
78
75
82
82
84
84
90
88
92
91
INPUT SPECIFICATIONS
Item^{INPUT SPECIFICATIONS} Test Conditions
Input Filter
Start Current(RMS)
Min.
Typ.
Max.
Units
Capacitor (10µF)
0.95
1.1
A
OUTPUT SPECIFICATIONS
Item
Test Conditions
Output Voltage Accuracy
Line Regulation
Load Regulation
Ripple and Noise*
Short Circuit Protection Mode
Short Circuit Protection
Inside Wasted
Thermal Shutdown
Output current limit
Switching Frequency
Transient peak deviation
Transient recovery time
Quiescent current
Temperature Coefficient
Max Capacitance Load
Remote ON/OFF
ON/OFF Control Current
Input voltage range at full load
Nominal input,10% to 100% load
20MHz bandwidth
20MHz bandwidth(refer to Figure 6)
Hiccup Mode
Continuous, automatic recovery
Internal IC junction
PWM type
Input voltage range,10% to 100%
load
-40℃ ~ +85℃ ambient
ON
OFF
ON: Open or 1.2<Vc≤6V
OFF:GND or Vc<0.4V
Shutdown Input Current
*Test ripple and noise by “parallel cable” method.
Min.
Typ.
Max.
Units
±2
±3
±0.2 ±0.5
%
±0.4 ±1.0
20
35
mVp-p
10
15
0.5
W
150
℃
1.8
A
1.4
MHz
±75 ±100 mV
100
µS
1
3
mA
±0.02 %/℃
1000
µF
Open or 1.2<Vc<6V
Vc<0.6V
100
200
µA
120
200
MICRODC reserves the copyright
COMMON SPECIFICATIONS
Item
Storage humidity Range
Operating Temperature Range
Storage Temperature Range
Operating Case Temperature
Lead Temperature
Cooling
Test Conditions
Power derating(above 71℃)
1.5mm from case for 10 seconds
Min.
Typ.
Max.
Units
95
%
-40
+85
-55
+125
℃
+100
260
Free Air Convection
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