1.0 to 2.25 WATT DIP DC/DC CONVERTERS
FEATURES
!
1 to 2.25 Watt
"
Regulated & Unregulated Models
#
Short Circuit Protection
$
24-Pin DIP Package
INPUT SPECIFICATIONS
%
Voltage .................................... 5 or 12Vdc
%
Voltage Range .................................. ±10%
%
Input Filter ................................. Pi Network
GENERAL SPECIFICATIONS
%
Efficiency (unregulated) ................... 70%
%
Efficiency (regulated) ....................... 50%
%
Switching Frequency ............. 20KHz min.
%
Isolation Voltage ................ 500Vdc min.
%
Operating Temperature ......... 0 to +70
O
C
ELECTRICAL SPECIFICATIONS AT 25
O
C
PART
NUMBER
B2AU050920
B2AU050921(*)
B2AU050925
B2AU120920
B2AU120925
B2AR050920
B2AR050925
B2AR120920
B2AR120925
INPUT
VOLTAGE
(Vdc)
OUTPUT
VOLTAGE
(Vdc)
OUTPUT SPECIFICATIONS
%
Voltage ........................................... 9.0Vdc
%
Voltage Accuracy ............................... ±5%
%
Ripple & Noise 20MHz BW ........ 100mV p-p
%
Load Regulation (unregulated)........... ±6%
%
Load Regulation (regulated).............. ±.5%
OUTPUT
CURRENT
(mA max.)
INPUT CURRENT (mA typ.)
REGULATED
OUTPUT
NO LOAD
FULL LOAD
5
5
5
12
12
5
5
12
12
9
9
9
9
9
9
9
9
9
200
200
250
200
250
200
250
200
250
NO
NO
NO
NO
NO
YES
YES
YES
YES
100
100
100
40
40
120
120
50
50
575
575
625
200
250
720
750
320
350
NOTE: (*) B2AU050921: MAY USING B2AU050920 AND REMOVE PIN #2-9, 16-23.
SCHEMATIC DIAGRAM
+Vin
24
23
22
21
20
19
18
17
16
-Vout +Vout -Vin
15
14
13
DC to DC C ONVERTER
1
+Vin
2
3
5
6
7
8
9
10
11
12
-Vout +Vout -Vin
PHYSICAL DIMENSIONS ....
DIMENSIONS IN INCHES (mm)
1.280
(32.51)
M AX.
.585
(14.86)
M AX.
.475
(12.07)
M AX.
.008 R
(0.20)
TYP.
.010
(0.25)
TYP.
.030 (.51)
.010 (.25)
.180
(4.57)
TYP.
.020
(0.51)
TYP.
.050
(1.27)
TYP.
.125
(3.18)
M IN .
.100
(2.54)
TYP.
.600
(15.24)
.635
(16.13)
M AX.
Specifications subject to change without notice.
P
Premier
M
Magnetics Inc.
13
20381 Barents Sea Circle
Lake Forest, California 92630
Phone: (949) 452-0511
Fax:
(949) 452-0512
PMI [ PREMIER MAGNETICS, INC. ]
