BEL V7PF

NON-ISOLATED DC/DC CONVERTERS
5.0 V Input
1.2 V-3.3 V/15 A Output
V7PF-15B1AC
•
Non-Isolated
•
Wide Trim Range
•
Fixed Frequency (300 kHz)
•
Under-voltage Lockout (UVLO)
•
Remote On/Off
•
OCP/SCP
•
Low Cost
•
•
Power Good Output Signal (open
collector)
Converter Can Sink and Source
Current
Description
The Bel V7PF-15B1AC is part of the low cost non-isolated dc/dc converter series. The modules use a SIP
package for ease of layout and space savings. The output is closely regulated and can be trimmed from 1.2 V
to 3.3 V. The efficiency is typically 93% at 3.3 V output at full load. Typical features include remote on/off,
under-voltage lockout, over-current protection and short circuit protection.
Part Selection
Output
Voltage
1.2 V - 3.3 V
Input
Voltage
5V
Max. Output
Current
15 A
Max. Output
Power
49.5 W
Typical
Efficiency
93%
Model Number
V7PF-15B1AC
Note: Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “G” for “Tray Packaging”.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
0 °C
-40 °C
Typ
-
Max
7V
7V
80 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (Source)
Min
4.5 V
Typ
5V
Max
5.5 V
Vo=3.3 V
Vo=1.8 V
Vo=1.2 V
-
11.7 A
6.8 A
4.8 A
12.5 A
7.4 A
5.2 A
Vo=3.3 V
Vo=1.8 V
Vo=1.2 V
No Load Input Current
Remote Off Input Current
-
-10 A
-5 A
-3 A
35 mA
10 mA
-7.8 A
-3.8 A
-2.3 A
22 mA
Input Reflected Ripple Current (pk-pk)
-
90 mA
150 mA
Input Reflected Ripple Current (rms)
-
20 mA
40 mA
-
2
Notes
Input Current (Sink)
2
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
0.02 A s
4.25 V
4V
Tested with simulated source
impedance of 500 nH, 5 Hz to 20 mHz
and five 10 uF/10 V capacitors (P/N:
C3216X5R1A106K, TDK) at the input
2
0.05 A s
-
Note: All specifications are typical at 25 °C unless otherwise stated.
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
5.0 V Input
1.2 V-3.3 V/15 A Output
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
Max
VO=3.3 V
VO=1.8 V
VO=1.2 V
3.234 V
1.764 V
1.176 V
3.3 V
1.8 V
1.2 V
3.366 V
1.836 V
1.224 V
VO=3.3 V
VO=1.8 V
VO=1.2 V
-
5 mV
3 mV
2 mV
8 mV
5 mV
4 mV
VO=3.3 V
VO=1.8 V
VO=1.2 V
-
2 mV
1 mV
1 mV
5 mV
3 mV
2 mV
Regulation Over Temperature
(0°C to +80 °C)
VO=3.3 V
VO=1.8 V
VO=1.2 V
-
13 mV
9 mV
8 mV
28 mV
18 mV
15 mV
Output Ripple and Noise (pk-pk)
-
30 mV
50 mV
Output Ripple and Noise (rms)
-
5 mV
15 mV
Output Current
-15 A
-
15 A
Current Limit Threshold
19 A
-
35 A
-
0.5 A s
1A s
Turn on Time
-
10 mS
20 mS
Overshoot at Turn on
-
0%
3%
-
-
13200 uF
16400 uF
17600 uF
Notes
Test condition:
Vin=5 V, lout=50% full load
Load Regulation
Line Regulation
Short Circuit Surge Transient
2
Line/Load regulation is the deviation
from nominal to minimum and
maximum line/load.
Tested at 0-20 MHz BW with 1000 uF
electrolytic capacitor & five 10 uF/10
V TDK C3216X5R1A106K capacitors
and 0.1 uF ceramic capacitor at the
output
2
Output Capacitance
VO=3.3 V
VO=1.8 V
VO=1.2 V
Transient Response
-
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
VO=1.2 V3.3 V
-
35 mV
50 mV
50 uS
100 uS
35 mV
50 mV
50 uS
100 uS
Test conditions:
di/dt = 0.1 A/uS; Vin = 5 V; with
1000 uF electrolytic capacitor
and five 10 uF/10 V TDK
C3216X5R1A106K ceramic
capacitors at the output
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
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
5.0 V Input
1.2 V-3.3 V/15 A Output
General Specifications
Parameter
Efficiency (Current Source)
VO=3.3 V
VO=1.8 V
VO=1.2 V
Efficiency (Current Sink)
VO=3.3 V
VO=1.8 V
VO=1.2 V
Switching Frequency
Output Voltage Trim Range
Min
Typ
Max
89%
83%
80%
93%
87%
82%
-
86%
79%
72%
275 kHz
1.2 V
90%
83%
75%
300 kHz
-
325 kHz
3.3 V
MTBF
Notes
Measured at Vin=5 V, full load.
Calculated Per Bell Core TR-332 (IO =
Nominal; Ta = 25°C)
4,573,743 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
-
1.2 x 1.0 x 0.457
30.48 x 25.4 x 11.6
13 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
-0.3 V
2.4 V
-
0.3 V
5 mA
0.8 V
7V
10 mS
-
Notes
Remote On/Off
Signal Low (Unit Off)
Signal High (Unit On)
1
Power Good Delay
2
Signal Low
Current Sink
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. Power good delay time is the time from output voltage in full regulation to power good asserted.
2. The power good signal is an open collector output. When the output of the module is higher than 90%
of the nominal set point, the power good pin is high.
Output Trim Equation
Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The
Rtrim resistor should be connected between the Trim pin and Ground.
 0.992 0.992 
Vadj = 
+
 ⋅ 1.18 K + 0.992
 5.62 K Rtrim 
Vout
Module Trim
Rtrim
GND
Power Good Signal Level Set
Equation for calculating the power good threshold (in kΩ) given the desired adjusted voltage (Vadj) is shown
below. The Rset resistor should be connected between the PG_set pin (Pin 9) and Ground.
1.24


PG _ Threshold = 6.19 K 
− 18.86 ⋅ 10 − 6  + 1.24

 2.21K + Rset
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
5.0 V Input
1.2 V-3.3 V/15 A Output
Efficiency Data
97.0%
96.5%
96.0%
95.5%
95.0%
94.5%
94.0%
93.5%
93.0%
92.5%
92.0%
4.5 V
5.0 V
5.5 V
1.5
3.75
7.5
11.25
15.0
Vo=3.3 V
95.0%
94.0%
93.0%
92.0%
91.0%
90.0%
89.0%
88.0%
87.0%
86.0%
85.0%
4.5 V
5.0 V
5.5 V
1.5
3.75
7.5
11.25
15.0
Vo=1.8 V
92.0%
90.0%
88.0%
4.5 V
5.0 V
5.5 V
86.0%
84.0%
82.0%
80.0%
1.5
3.75
7.5
11.25
15.0
Vo=1.2 V
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
5.0 V Input
1.2 V-3.3 V/15 A Output
Thermal Derating Curves
Vo=3.3 V
Vo=1.8 V
Vo=1.2 V
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
5.0 V Input
1.2 V-3.3 V/15 A Output
Pin Connections
Pin
Function
1
Vo+
2
Vo+
3
Vo+
4
Trim
5
Remote On/Off
6
Power Good
7
Ground
8
Ground
9
PG_Set
10
Vin+
11
Vin+
2005 Bel Fuse Inc. Specifications subject to change without notice. 040805
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com