OUTPUT SPECIFICATIONS
OUTPUT VOLTAGE TRIM
Item
Test conditions
Min
50
Typ
±1
Max Units
+V0
Output voltage accuracy Refer to recommended circuit
±3
%
From 10% to 100% load
Load regulation
±0.5
±0.2
75
±1
Trim
Trim
0V
+Vo
Line regulation
Input voltage from low to high
Tested under 20MHz brand
±0.5
Ripple and noise
150 mV
Trim
0V
us
Transient recovery time
Transient peak deviation
Over load protection
Output Short Circuit
200
±3
300
25%load change
Trim up/down
Trim down
Trim up
±2
±5
%
%
Input voltage range
120
130
150
RECOMMENDED CIRCUIT
Input voltage range
Hiccup, automatics recovery
3.3V
5V
3.63
5.5
4.29
6.5
Figure.1
Over voltage protection
VDC
12V
15V
24
13.2
16.5
26.4
15.6
19.5
31.2
In order to abtain better performance for the
DC/DC models. it’s recommended that use input
and output filters as Fig.1 shown.
Temperature drift (Vout)
0.02
%/°C
L:12uH
C:100uF/100V
Trim
±10%Vo
VDC
DERATING&EFFICIENCY CURVE
Note:
1. All specifications are measured at TA=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. The CTRL control pin voltage is referenced to GND.
Temperature derating curve
3. Typical efficiency value at nominal input voltage and full load.
4. Capacitor MAX load tested at nominal input voltage and constant resistive load.
5. Refer to the diagram of Output Voltage trim up/down for trim applications.
6. The products cannot be used in parallel and in plug and play.
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
Operating Temp(℃)
First Angle Projection
Curve of Efficiency VS output load
VRB2424D-30W
50.80
45.72
(2.000)
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
diameter:1.50mm(0.059inch)
(1.800)
2.54
(0.100)
EFF%
Ef f i ci encyVS Out put l oad
100
90
80
70
60
50
40
30
20
10
0
4
5
6
3
6
5
4
1
2
2
1
(Bottom View)
3
0% 10% 20% 30% 40% 50% 60% 70% 80% 90%100%
Out put %I o
Curve of Efficiency VS input Voltage
VRB2424D-30W
FOOTPRINT DETAILS
Function
Vin
Pin
1
EFF%
Ef f i ci e ncy VS I nput vol t age
2
GND
Ctrl
Trim
0V
94
92
91
89
87
85
84
82
80
3
4
5
6
Note:
Unit:mm(inch)
Pin diameter:1.00mm(0.039inch)
Pin diameter tolerances: 0.05mm( 0.002inch)
+Vo
+
+
General tolerances: 0.25mm( 0.010inch)
+
+
18
20
22
24
26
28
30
32
34
36
I nput vol t age（V）
MORNSUN reserves the copyright
Specifications subject to change without notice
VRB_D- 30W
A/ 1- 2008
Page 1 of 2
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