Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input
Output Specifications
Parameter
Output Voltage Set Point
Load Regulation
Line Regulation
Regulation Over Temperature
(-40
°
C to +85
°
C)
Output Current
Current Limit Threshold
Short Circuit Surge Transient
Ripple and Noise (pk-pk)
0.75 Vdc - 3.63 Vdc/16 A Output
Min
Typ
-
Max
Notes
-2%Vo,set
-
-
2%Vo,set
-
Vin=12 V, full load
0.2%Vo,set
0.3%Vo,set
-
0.3%Vo,set
-
0 A
-
-
-
-
16 A
-
3 A
2
s
80 mV
Tested with 0-20 MHz, 10 uF
tantalum capacitor & 1 uF
ceramic capacitor at the output
180% Io,out
1 A
2
s
30 mV
Ripple and Noise (rms)
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
Note
: All specifications are typical at nominal input, full load at 25
°
C
unless otherwise stated.
General Specifications
Parameter
Min
Efficiency
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
Efficiency
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
Switching Frequency
250 kHz
Over Temperature Shutdown
1
-
Output Trim Range (Wide Trim)
0.7525 V
-
-
-
12 mV
8 mS
-
-
35 mV
20 mS
1%Vo,set
5600 uF
0 uF
-
-
-
-
100 mV
80 uS
100 mV
80 uS
-
-
-
-
All
di/dt=0.5 A / uS; Vin=12 V and
and without any external
capacitor at the output.
Typ
91.7%
90.4%
87.5%
86%
85%
79%
93.5%
91.5%
88.4%
87%
86%
80%
280 kHz
130
°
C
-
Max
-
-
-
-
-
-
-
-
-
-
-
-
310 kHz
-
3.63 V
Notes
-
-
-
-
-
Measured at Vin=12 V, lo=lo-max
-
-
-
-
-
Measured at Vin=5 V, lo=lo-max
Total adjustment of trim, setpoint and
remote sense combined should not exceed
3.63 V. Vo=0.7525 V when trim pin open
Calculated Per Bell Core TR-332 (I
O
=
80%Io,max; Vin=12 V; Vo=3.3 V; T
a
=
25
°
C)
Remote Sense Compensation
-
-
0.5 V
MTBF
4,619,490 hours
Dimensions
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
2.0x 0.5 x 0.32
50.8 x 12.7 x 8.13
7.1 g
Weight
Notes
: All specifications are typical at 25
°
C
unless otherwise stated.
1. The Tref temperature measurement location:
-
-