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