S7KS-25D Datasheet, PDF (1/4 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
3 –15V Input / Programmable Output / 25A
S7KS- 25D (Keystone) PRELIMINARY
• Compact surface mount package
• Ultra Wide input range (3 – 15V)
• 6 bit digital voltage programming (0.7 to 5.4V)
• 25A of output current
• Remote sense
• Remote On/Off
• Power Good
• Analog Trim
• Single wire current sharing
• Autophasing
Description
The S7KS Keystone Series from Bel is a non-isolated step down DC/DC converters providing up to 25A of
output current in a compact surface mount package with the capability of paralleling and autophasing to provide
up to 200A of output current. This product is designed to operate from any source voltage from 3 to 15V and
provide any output voltage from 0.7V to 5.4V with 6-bit digital programming and 50mV resolution. This DC/DC
converter requires no external components to operate and provides the ultimate in flexibility. It also greatly
simplifies inventory management since a single part can be configured to service a very broad range of
applications.
Part Selection
Output
Input
Voltage
Voltage
0.7 – 5.4V
3 - 15V
0.7 – 5.4V
3 - 15V
Max. Output
Current
25A
25A
On/Off Logic
Active High
Active Low
Part Number
S7KS-25D1P0
S7KS-25D1PL
Input Specifications
Parameter
Input Voltage Range
Input Current (full load)
Bias Voltage
Input Current (bias supply)
Reflected Ripple Current
Min
3.0 VDC
4.8 VDC
Typ
100mA
Max
15 VDC
18A
5.2 VDC
200mA
150mA rms
Notes
With 100uF, 30mOhm
capacitor and 500nH of input
inductance.
Output Specifications
Parameter
Voltage Programmability
Output Current
Set Point Accuracy
Regulation
Line Regulation
Load Regulation
Temperature
Ripple and Noise
pk-pk
rms
Turn on Time
Transient Response
Deviation
Settling Time
Min
0.7V
0A
Typ
50mV
20mV
8mS
150mV
280uS
Max
5.4V
25A
2%
10mV
35mV
40mV
10mS
Notes
0 to 20MHz Bandwidth
Full load with external 680uF
oscon capacitor on output.
From Enable
di/dt = 5A/uS
Load step =50% of max load.
with external 680uF oscon
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com