SatCon Electronics 1 SAT1000 Preliminary Rev 6
www.satconelectronics.com
SAT1000
Point-of-Load Digital Switching Regulator
4.5Vdc - 12Vdc Input, 12A Output Current
Features
Input Range 4.5V to 12V
Configurable Output Voltages: 0.6V to 5.5V
Up to 12A Output Current
Integrated Input/Output Capacitors
Optimized fast transient response
Power Good Enable
Synchronization Input
Internal Soft Start
Efficiencies up to 97%
Factory Configurable parameters
o Voltage Margining
o Current Limit
o Under-Voltage Lockout
Description
The SAT1000 is a non-isolated PowerCell module designed for high reliability, military
& Commercial point of load applications. Fully integrated, the SAT1000 includes
controller, inductor, and input capacitors integrated in a single package. The SAT1000
operates from an input voltage of +4.5V to +12V providing step down power conversion
to any output voltage from 0.6V to 5.5V. This unit has many factory configurable
features such as output voltage margining, current limit, under voltage lockout and
transient response. Factory configuration of critical parameters results in a part that is
tuned to your specific application requirements. Careful design and layout ensure
excellent stability, transient response, and low noise operation. Packaged in compact FR-
4 SIP package, the SAT1000 is designed for controlled environment, distributed power
applications and operates over a temperature range of -40
o
C to +105
o
C.
29-Pin SIP
ElectronicsElectronics
SatCon Electronics 2 SAT1000 Preliminary Rev 6
Absolute Maximum Ratings
(Exceeding maximum ratings may damage the device)
Electrical Characteristics @ Ta=-40ºC to +125ºC
(Unless Otherwise Specified)
Symbol Parameter Value Unit
Vin DC input Voltage Vin-Vground 14 V
Pd Power Dissipation Tcase=25deg.C 4.5 W
Iout Output Current 15 A
Tstg Storage Temperature -55 to +125
o
C
Tj Operating Temperature Range -40 to +105
o
C
Tsold Maximum Soldering Temperature, 10sec 300
o
C
Parameter
Test Conditions
Units
Min Typ Max
Output Voltage Initial accuracy
1
Vin=5.0V, Iout=2.0A, Vo= Vref -1.5 1.5 %
Output Voltage Range Iout=12.0A 0.6 5.5 V
Line Regulation +4.5V ≤ Vin ≤ +6.0V, Iout = 3A 0.1 %
Short-circuit current Limit Vin=5.0V, 6 A
Over-Current Margin Customer defined
Load regulation Vin = 5V, 1A ≤ Iout ≤ 3A -1 1 %
Output Voltage Margin range Customer defined
Total Regulation Over Line, Load & Temperature -1.5 1.5 %
Idle current Iout= 0 10 mA
Input Voltage Range Iout=12A 4.5 14 V
Sync Input Voltage
2
1.5 2.2 V
Shutdown Source Current Vin=6.0V; Vshdn=0, Vsw=0 75 uA
Synchronizing Range 580 1000 kHz
Switching Frequency 400 kHz.
Transient Response TBD
UnderVoltage Lockout Threshold 3.8 13.2 V
Power Good (Low) Threshoild 90 %Vout
Power Good (High) Threshold 115 %Vout
Vsense Under-Voltage threshold 85 %Vout
Vsense over-voltage threshold 115 %Vout
Thermal Limit range 125 140 ºC
Protection Characteristics
Value
Output Characteristics
Input Characteristics
Oscillator and Switching Characteristics
SatCon Electronics 3 SAT1000 Preliminary Rev 6
Typical Performance Characteristics
20
30
40
50
60
70
80
90
100
0 2 4 6 8 10 12 14 16
Load Current (A)
Efficiency (%)
12V -> 5V
12V -> 3.3V
12V -> 2.5V
5V -> 3.3V
5V -> 2.5V
Figure 1: Efficiency at 25°C
3.3 Vout
Iin
Figure 3: Output voltage transient
response, to 25-50-25% (di/dt=.2A/µs)
max load current step-change at 25°C.
Vout: 500mV/div, 500µs/div, Iout:
1A/div, 500µs/div.
3.3 Vout
Figure 5: Output voltage ripple.
Vout: 25mV/div, 1µs/div.
0
0.1
0.2
0.3
0.4
0.5
0 1 2 3 4 5 6 7 8 9 10 11 12
Load Current (A)
Deviation (%)
12V -> 5V
12V -> 3.3V
12V -> 2.5V
5V -> 3.3V
5V -> 2.5V
Figure 2: Line regulation at 25°C
3.3 Vout
Iin
Figure 4: Output voltage transient
response, to 50-75-50% (di/dt=.2A/µs)
max load current step-change at 25°C.
Vout: 500mV/div, 500µs/div, Iout:
1A/div, 500µs/div.
Vout
Iin
Figure 6: Turn on transient at nominal
load. Vout: 2V/div, 2ms/div. Iout: 3A/div,
2ms/div.
SatCon Electronics 4 SAT1000 Preliminary Rev 6
Package Outline
Pin Description
Pin No Pin Name Pin Description
1 PWR_GOOD Power good output
2 SA0
3 SA1
4 SCL Serial Clock. Connect to other SAT1000s or external
host.
5 SYNC Clock Synchronization Input. Used to sync the internal
frequency to an external clock.
6 SDA Serial Data. Connect to other SAT1000s or external
host.
7 SALRT Serial Alert. Connect to external host.
8 VTRK Tracking sense input. Used to track external voltage
source.
9 VSEN Output voltage feedback
10 INHIBIT Enable.
11 GND Ground
12-15 VIN Input Voltage
16-17 GND_IN Input Ground
18-21 GND_OUT Output Ground
23-29 VOUT
Output Voltage
Serial address select pins. Used to assign a unique
address to the device.
SatCon Electronics 5 SAT1000 Preliminary Rev 6
Ordering Information:
ElectronicsElectronics
165 Cedar Hill st., Marlborough, Massachusetts 01752, USA
Tel: 508-485-6350
Fax: 508-485-5168
E-Mail: Electronics.sales@satcon.com
For more information about SatCon Power Products, visit us at: www.satconelectronics.com
Specifications in this document are subject to change without notice.
SAT1000
-
08 T ST
12A, Sw. Reg. Output Voltage
Options Package Type Screening
08= +0.8V
ST= Standard part
15= +1.5V
25= +2.5V
33= +3.3V
05= +5.0
AD= Adjustable