Electronics
SAT8564
Point-of-Load Switching Regulator
4.5Vdc - 12Vdc Input, 1.21Vdc - 5.0Vdc Output, 5.5A
(Preliminary)
FEATURES
• Input Range 4.5V to 12V
• Rad-Tolerant to 100Krad (TID)1
• Adjustable or Fixed Output Voltage
• Up to 5.5A Output Current
• Fully Integrated assembly includes Inductor
• Remote-Sense operation
• Under-Voltage Lockout
PRELIMINARY
• Internal Soft Start
• Current Limiting
• Efficiencies up to 85%
• 120W/in3 Power Density
DESCRIPTION
The SAT8564 is a non-isolated PowerPac module for high reliability and full military distributed power, point
of load applications. Fully integrated, the SAT8564 includes buck controller, inductor, and input/output
capacitors integrated in a single package. The SAT8564 operates from an input voltage of +4.5V to +12V
providing step down power conversion to output voltages as low as 1.21V. Operating features include output
voltage adjust, output current limit, shutdown, external synchronization, soft start and under voltage lockout.
The SAT8564 can also be set up in a parallel configuration to increase output current capability.
Careful design and layout ensure excellent stability, transient response, and low noise operation. Packaged in a
compact 16-lead flat-pack the SAT8564 is manufactured in a facility certified to MIL-PRF-38534, class H & K
and operates over the full –55oC to +125oC temperature range.
ABSOLUTE MAXIMUM RATINGS
(Exceeding maximum ratings may damage the device)
Table.1
Symbol
Vin
Io
Parameter
DC input Voltage Vin-Vground
Output Current
Power Dissipation Tcase=25deg.C
Thermal Resistance, Junction to Case
Storage Temperature
Operating Temperature Range
Maximum Soldering Temperature, 10sec
Value
12
6
20
5.0
unit
V
A
Pd
W
Rthjc
Tstg
Tj
oC/W
oC
oC
oC
-65 to +150
-55 to +125
300
Tsold
SatCon Electronics
1
SAT8564 Preliminary Rev 8
www.satcon.com