v7ah-01h1a0 Bel Fuse Inc., v7ah-01h1a0 Datasheet - Page 3

• Manufacturer Part Number: v7ah-01h1a0
• Description: Module Dc-dc 1-out 1.2v To 3.3v 1a 3.3w 7-pin Low Profile Smd
• Manufacturer: Bel Fuse Inc.

General Specifications
Note: All specifications are typical at 20V input, full load at 25
Control Specifications
Output Trim Equations
output voltage of the converter (Vo) are shown below. The Trim Down resistor should be connected between the
Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the
resistors should be used for any given application.
Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal
Efficiency
Switching Frequency
Output Trim Range
MTBF
Dimensions (surface mount)
Dimensions (vertical)
Weight
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
NON-ISOLATED DC/DC CONVERTER
4.5V-32V Input
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
Parameter
Note: Output voltage Vo=1.205V
Millimeters (L × W × H)
Millimeters (L × W × H)
R
Parameter
R
TrimUp
TrimDown
Inches (L × W × H)
Inches (L × W × H)
=
V
=
adj
17
V
V
V
V
V
V
V
V
V
V
V
1.2V-3.3V/1A Output
O
O
O
O
O
O
O
O
O
O
−
2 .
o
=3.3V
=2.5V
=1.8V
=1.5V
=1.2V
=3.3V
=2.5V
=1.8V
=1.5V
=1.2V
V
8
−
7 .
o
V
-0.3V
2.8V
Min
adj
−
270KHz
190KHz
150KHz
130KHz
100KHz
83%
80%
76%
73%
70%
1.2V
Min
21
-
5 .
19.81 x 17.78 x 8.13
17.78 x 7.82 x 16.51
Typ
0.70 x 0.308 x 0.65
0.78 x 0.70 x 0.32
-
-
8,040,000 hours
290KHz
220KHz
170KHz
150KHz
120KHz
86%
83%
79%
76%
73%
5.1g
Typ
-
Max
12V
1V
°C
310KHz
250KHz
190KHz
170KHz
140KHz
3.3V
Max
unless otherwise stated.
-
-
-
-
-
-
Remote on/off pin open, unit on.
Module
Module
Measured at Vin=20V, full load.
Vo=1.2V when trim pin open.
Calculated Per Bell Core TR-332 (I
=0.8A, Vin=20V; T
GND
GND
Vout
Trim
Vout
Trim
Notes
Notes
a
Rtrimdown
Rtrimup
= 25°C)
O