LT1581CT7-2.5 Linear Technology, LT1581CT7-2.5 Datasheet - Page 12

• Manufacturer Part Number: LT1581CT7-2.5
• Description: IC LDO REGULATOR 10A 2.5V TO2207
• Manufacturer: Linear Technology

Specifications of LT1581CT7-2.5

• Applications: Converter, Intel Pentium®
• Voltage - Input: 1.68 ~ 6 V
• Number Of Outputs: 1
• Voltage - Output: 2.5V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-7 (Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RELATED PARTS
LT1581/LT1581-2.5
TYPICAL
PART NUMBER
LTC
LTC1435
LT1575/LT1577
LT1580
LT1584
LT1585
12
®
1430
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
APPLICATION
5V
*RESISTORS ARE IMPLEMENTED AS COPPER TRACES ON PCB
IF 1 OZ COPPER, TRACE WIDTHS ARE 0.05 INCH
IF 2 OZ COPPER, TRACE WIDTHS ARE 0.025 INCH
R13 IS 0.83 INCHES LONG, R12 IS 1.24 INCHES LONG
+
0.0075 *
0.005 *
C9
220 F
10V
DESCRIPTION
High Power Synchronous Step-Down Switching Regulator
High Current Synchronous Step-Down Controller
Single and Dual Low Dropout Regulator Controllers
7A Fast Transient Response Regulator with 0.7V Dropout
7A Low Dropout Fast Transient Response Regulator
4.6A Low Dropout Fast Transient Response Regulator
R13
R12
R10
10k
+
R1
10k
12V
C2
220 F
10V
Dual Regulators Power Pentium Processor or Upgrade CPU
U
22 F
C11
35V
+
–
LT1006
0.33 F
+
12V
C5
0.01 F
6
5
C6
V
V
89.8
CONT
POWER
0.5%
C8
0.1 F
R6
LT1581
ADJ
1
SENSE
R7
107
0.25%
1N4148
V
+
OUT
D1
ZVN4206
C1
220 F
10V
3
4
E3
0
1
1N4148
Q1
0.35%
470
107
D2
R8
R2
CPU TYPE
P55C
P54C
C10
1 F
R14, 2
V
IN
LT1587
ADJ
5V
2N3904
V
OUT
R4
178
1%
R5
10k
Q2
COMMENTS
> 90% Efficiency High Current Microprocessor Supply
> 90% Efficiency in 12V to 3.3V Applications
Fast Transient Response, No Bulk Capacitors Needed
For 3.3V to 2.XXV Applications
For High Performance Microprocessors
For High Performance Microprocessors
+
R3
110
1%
R9
10k
C7
330 F
6.3V
C4
0.33 F
2N7002
158125fa LT/TP 0399 2K REV A • PRINTED IN USA
Q3
+
5V
LINEAR TECHNOLOGY CORPORATION 1996
R11
10k
C3
220 F
10V
CORE
SUPPLY
3.5V/2.5V
E3
TO CPU
VOLTAGE
SELECT PIN
1581 TA04
I/O
SUPPLY
3.5V/3.3V