Electronics
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
29-Pin SIP
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.
SatCon Electronics
www.satconelectronics.com
1
SAT1000 Preliminary Rev 6
Absolute Maximum Ratings
(Exceeding maximum ratings may damage the device)
Symbol
Vin
Pd
Iout
Tstg
Tj
Tsold
Parameter
DC input Voltage Vin-Vground
Power Dissipation Tcase=25deg.C
Output Current
Storage Temperature
Operating Temperature Range
Maximum Soldering Temperature, 10sec
Value
Unit
14
V
4.5
W
15
A
o
C
-55 to +125
o
C
-40 to +105
o
C
300
Electrical Characteristics @ Ta=-40ºC to +125ºC
(Unless Otherwise Specified)
Parameter
Test Conditions
Min
1
Value
Typ
Max
1.5
5.5
0.1
6
-1
-1.5
10
4.5
1.5
14
2.2
75
580
1000
1
1.5
-1.5
0.6
Units
%
V
%
A
%
%
mA
V
V
uA
kHz
Output Characteristics
Output Voltage Initial accuracy
Output Voltage Range
Line Regulation
Short-circuit current Limit
Over-Current Margin
Load regulation
Output Voltage Margin range
Total Regulation
Vin=5.0V, Iout=2.0A, Vo= Vref
Iout=12.0A
+4.5V
≤
Vin
≤
+6.0V, Iout = 3A
Vin=5.0V,
Customer defined
Vin = 5V, 1A
≤
Iout
≤
3A
Customer defined
Over Line, Load & Temperature
Iout= 0
Iout=12A
Vin=6.0V; Vshdn=0, Vsw=0
2
Input Characteristics
Idle current
Input Voltage Range
Sync Input Voltage
Shutdown Source Current
Synchronizing Range
Oscillator and Switching Characteristics
Switching Frequency
Transient Response
400
TBD
3.8
90
115
85
115
125
140
13.2
V
%Vout
%Vout
%Vout
%Vout
ºC
kHz.
Protection Characteristics
UnderVoltage Lockout Threshold
Power Good (Low) Threshoild
Power Good (High) Threshold
Vsense Under-Voltage threshold
Vsense over-voltage threshold
Thermal Limit range
SatCon Electronics
2
SAT1000 Preliminary Rev 6
Typical Performance Characteristics
100
0.5
12V -> 5V
90
12V -> 3.3V
0.4
12V -> 2.5V
5V -> 3.3V
5V -> 2.5V
80
Efficiency (%)
70
Deviation (%)
0.3
60
50
12V -> 5V
12V -> 3.3V
0.2
40
12V -> 2.5V
5V -> 3.3V
0.1
30
5V -> 2.5V
20
0
2
4
6
8
10
12
14
16
0
0
1
2
3
4
5
6
7
8
9
10
11
12
Load Current (A)
Load Current (A)
Figure 1:
Efficiency at 25°C
Figure 2:
Line regulation at 25°C
3.3 Vout
Iin
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.
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.
3.3 Vout
Vout
Iin
Figure 5:
Output voltage ripple.
Vout: 25mV/div, 1µs/div.
Figure 6:
Turn on transient at nominal
load. Vout: 2V/div, 2ms/div. Iout: 3A/div,
2ms/div.
SatCon Electronics
3
SAT1000 Preliminary Rev 6
Package Outline
Pin Description
Pin No
1
2
3
4
5
6
7
8
9
10
11
12-15
16-17
18-21
23-29
Pin Name
Pin Description
PWR_GOOD Power good output
Serial address select pins. Used to assign a unique
SA0
address to the device.
SA1
Serial Clock. Connect to other SAT1000s or external
host.
SCL
Clock Synchronization Input. Used to sync the internal
frequency to an external clock.
SYNC
Serial Data. Connect to other SAT1000s or external
host.
SDA
Serial Alert. Connect to external host.
SALRT
Tracking sense input. Used to track external voltage
source.
VTRK
Output voltage feedback
VSEN
Enable.
INHIBIT
Ground
GND
Input Voltage
VIN
Input Ground
GND_IN
GND_OUT Output Ground
Output Voltage
VOUT
SatCon Electronics
4
SAT1000 Preliminary Rev 6
Ordering Information:
SAT1000
-
08
T
ST
12A, Sw. Reg.
Output Voltage
Options
08= +0.8V
15= +1.5V
25= +2.5V
33= +3.3V
05= +5.0
AD= Adjustable
Package Type
T= PCB Mount
Screening
ST= Standard part
Electronics
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.
SatCon Electronics
5
SAT1000 Preliminary Rev 6
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