SC1565I5M-X.XTR SEMTECH [Semtech Corporation], SC1565I5M-X.XTR Datasheet

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SC1565I5M-X.XTR

Manufacturer Part Number
SC1565I5M-X.XTR
Description
Very Low Dropout 1.5 Amp Regulator With Enable
Manufacturer
SEMTECH [Semtech Corporation]
Datasheet
1.SC1565I5M-X.XTR.pdf (14 pages)
The SC1565 is a high performance positive voltage
regulator designed for use in applications requiring very
low dropout voltage at up to 1.5 Amps. Since it has
superior dropout characteristics compared to regular
LDOs, it can be used to supply 2.5V on motherboards or
2.8V on peripheral cards from the 3.3V supply thus
allowing the elimination of costly heatsinks. Additionally,
the 5-lead TO-220/TO-263 and SO-8 versions have an
enable pin to further reduce power dissipation while shut
down. The SC1565 provides excellent regulation over
variations in line, load and temperature.
The SC1565 is available in SO-8, 3-lead SOT-223, 3 and
5 lead TO-220 and 3 and 5 lead TO-263 packages. Three
lead packages are available with 1.8V and 2.5V fixed
output options only. The SO-8, TO-220-5 and TO-263-5
are available with 1.8V and 2.5V internally preset
outputs that are also adjustable using external resistors.
Notes:
(1) Maximum VO setpoint for 1.8V parts = 5.4V.
(2) This device is designed to operate with ceramic input and output capacitors.
Revision: April 27, 2005
POWER MANAGEMENT
Description
Typical Application Circuits
VIN
ENABLE
VIN
VO
C1
C1
1
C2
SC1565IT-X.X
VIN
U1
GND
2
VO
R1
R2
VO
3
1.200
1
2
3
4
(R1
R2
SC1565IS-X.X
EN
VIN
VO
ADJ
U1
C2
R2)
GND
GND
GND
GND
VO
Volts
8
7
6
5
ENABLE
VIN
1
Note:
(1) SO-8, TO-220-5 and TO-263-5 packages only.
Features
Applications
ENABLE
C1
350mV dropout @ 1.5A
Adjustable output from 1.2V to 4.8V
2.5V and 1.8V options (adjustable externally
using resistors)
Over current and over temperature protection
Enable pin
10µA quiescent current in shutdown
Low reverse leakage (output to input)
Surface mount and through-hole packages
Full industrial temperature range
TO-220, TO-263, SOT-223 and SO-8 Packages
Battery powered systems
Motherboards
Peripheral cards
Network cards
Set Top Boxes
Medical Equipment
Notebook Computers
1.5 Amp Regulator With Enable
VIN
VO
2
1
VIN
EN
SC1565I5T-X.X
U1
C1
GND ADJ
3
(1)
VO
(1)
C2
4
5
Very Low Dropout
R1
R2
VO
1
2
3
4
SC1565IS-X.X
EN
VIN
VO
ADJ
U1
C2
1.200
GND
GND
GND
GND
(1)
(1)
SC1565
www.semtech.com
(R1
R2
8
7
6
5
R2)
Volts
VO

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SC1565I5M-X.XTR Summary of contents

Page 1

POWER MANAGEMENT Description The SC1565 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage 1.5 Amps. Since it has superior dropout characteristics compared to regular LDOs, it can be ...

Page 2

POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied ...

Page 3

POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified Adjustable Option ( Fixed Options (V = GND 0.7V) to 5.5V and I ADJ ...

Page 4

POWER MANAGEMENT Pin Configurations SO-8 SOT-223 TO-220 ...

Page 5

POWER MANAGEMENT Block Diagram * * Not present on SOT-223, TO-220-3 or TO-263-3 Pin Descriptions ...

Page 6

POWER MANAGEMENT Typical Characteristics Dropout Voltage (I = 1.5A) vs. Output OUT Voltage vs. Junction Temperature 600 550 500 T = 150°C J 450 400 350 T = 25°C J 300 250 200 150 T = -40°C J 100 50 ...

Page 7

POWER MANAGEMENT Typical Characteristics (Cont.) Reference Voltage vs. Junction Temperature vs. Output Current 1.225 VIN = 5.5V 1.220 1.215 1.210 1.205 1.200 1.195 1.190 1.185 1.180 1.175 -50 - (°C) J Off-State Quiescent Current vs. Junction ...

Page 8

POWER MANAGEMENT Applications Information Introduction The SC1565 is intended for applications such as graphics cards where high current capability and very low dropout voltage are required. It provides a very simple, low cost solution that uses very little pcb real ...

Page 9

POWER MANAGEMENT Applications Information (Cont.) Co=2.2uF, Stable Region: Unstable Region: 0.001 0.01 0.1 1 ESR(Ohms) Co=220uF, Stable Region: 0.001 2005 Semtech Corp. Co=22uF, Stable Region: Unstable Region: 1.5mA 15mA Load 150mA 1.5A 0.001 0.01 10 Unstable Region: 0.01 0.1 1 ...

Page 10

POWER MANAGEMENT Outline Drawing - SO-8 2X ccc C 2X N/2 TIPS aaa C SEATING PLANE NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR ...

Page 11

POWER MANAGEMENT Outline Drawing - SOT-223 Land Pattern - SOT-223 2005 Semtech Corp. 11 SC1565 www.semtech.com ...

Page 12

POWER MANAGEMENT Outline Drawing - T0-263-3 Minimum Land Pattern - TO-263-3 2005 Semtech Corp. 12 SC1565 www.semtech.com ...

Page 13

POWER MANAGEMENT Outline Drawing - TO-263-5 Minimum Land Pattern - TO-263-5 2005 Semtech Corp. 13 SC1565 www.semtech.com ...

Page 14

POWER MANAGEMENT Outline Drawing - TO-220-3 Outline Drawing - TO-220-5 Contact Information Phone: (805)498-2111 FAX (805)498-3804 2005 Semtech Corp. Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 14 SC1565 www.semtech.com ...

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