Electronics
SAT101A
Point-of-Load Switching Regulator
4V-10Vdc Input, 1.21Vdc - 5.0Vdc Output, 1.0A
(Preliminary Data Sheet)
FEATURES
•
Input Range 4.5V to 10V
•
Adjustable Output Voltage
•
Up to 1A Output Current
•
Integrated Inductor & Capacitors
•
Variable Frequency Operation (note 1)
•
Efficiencies up to 88%
See Outline dwg- last page
DESCRIPTION
The SAT101 is a non-isolated switching regulator designed for high reliability and full military point of
load applications. Fully integrated, the SAT101 includes buck controller, inductor, and input capacitors
integrated in a single compact package. The SAT101 operates from an input voltage of +4.0 to +10V
providing step down power conversion to any output voltage from 1.21V to 5.0V. Operating features
include output voltage adjust, output current limit, shutdown, external synchronization and soft start.
Careful design and layout ensure excellent stability, transient response, and low noise operation. Packaged
in a compact 6 Pin
Ceramic, lead-less, surface-mount package,
the SAT101 is available in fixed and
adjustable configurations.
This regulator will have an operating temperature range of –55
o
C to +125
o
C and will be available as COTS
or Class H screening levels.
ABSOLUTE MAXIMUM RATINGS
(Exceeding maximum ratings may damage the device)
Table.1
Symbol
Vin
Io
Pd
Rthjc
Vshdn
Vsync
Tstg
Tj
Tsold
Parameter
DC input Voltage Vin-Vground
Output Current
Power Dissipation Tcase=25deg.C
Thermal Resistance, Junction to Case
Shutdown Pin Voltage
Sync Pin Voltage
Storage Temperature
Operating Temperature Range
Maximum Soldering Temperature, 10sec
Value
10.0
1.0
TBD
TBD
7.0
7.0
-65 to +150
-55 to +125
300
Unit
V
A
W
o
C/W
V
V
o
C
o
C
o
C
SatCon Electronics
www.satcon.com
1
SAT101 Preliminary Rev 3
ELECTRICAL CHARACTERISTICS @ Ta=-55deg.C to +125deg.C
(Unless Otherwise Specified)
Symbol
Vout
Kvi
Kvo
Vin
Vsync
Isc
Ishdn
Fsync
Vshdn
Parameter
Test Conditions
Min
Output Voltage accuracy Vin=5.0V, Iout= 0.5A, Vo= Vref
Line Regulation
Load regulation
Input Voltage Range
Sync Input Threhold
Voltage
Short-circuit current Limit Vin=5.0V,
Shutdown Source
Current
Vin=6.0V; Vshdn=0, Vsw=0
Synchronizing Range
1
Shutdown Input Voltage
2
Vin=5.0, Vout < 0.5V
580
0.4
+5.0V
≤
Vin
≤
+10V, Iout = 1A
Vin = 5V, 100mA
≤
Iout
≤
1A
Iout=1.0A
4.0
1.5
2.0
75
1000
Value
Typ
1.5
1.0
1.5
10
2.2
Max
2.00
Units
%
%
%
V
V
A
uA
KHz
V
Application Circuits
Figure 2.- Adjustable Regulator Version
1
V
out
= V
ref
x (1+R
adj
/2490), with Vref~1.21 Volts
Notes:
1. Frequency of operation can be adjusted above the nominal 500KHz. operating point when using the
Sync input. This input should be grounded when not in use.
2. Output Inhibit guaranteed @ Vshdn< 0.4V. Shutdown pin must be pulled up to Vin (Rpullup≤ 5KΩ),
when not in use.
SatCon Electronics
2
SAT101 Preliminary Rev 3
ORDERING INFORMATION:
SAT101
Product Number
A
Configuration
A= Adjustable
-1
Current Designation
- 1 = 1A Version
B
Screening Level
B = Class-H (Full Mil. Comp.)
Blank
= No screening (COTS)
EM= Engineering Model
L
Package Type
L= Leadless
-Adj
Output Voltage
-ADJ = Adjustable Version
Package Outline
Pin Assignments (For SAT101A units)
Pin No
Pin Name
Vin
GND
Vout
SHDN
Adjust
Pin Description
Input Voltage
Ground
Output Voltage
Shutdown Pin. Output reset occurs when Vshdn< 0.4V
Adjust pin for Adjustable Output
SatCon Electronics
4
SAT101 Preliminary Rev 3
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
