SC1566IM-2.5TRT Semtech, SC1566IM-2.5TRT Datasheet

IC LDO REG 2.5V 3A TO-263-3

SC1566IM-2.5TRT

Manufacturer Part Number
SC1566IM-2.5TRT
Description
IC LDO REG 2.5V 3A TO-263-3
Manufacturer
Semtech
Datasheet

Specifications of SC1566IM-2.5TRT

Regulator Topology
Positive Fixed
Voltage - Output
2.5V
Voltage - Input
Up to 5.5V
Voltage - Dropout (typical)
0.35V @ 3A
Number Of Regulators
1
Current - Output
3A
Current - Limit (min)
3A
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
TO-263-3, D²Pak (3 leads + Tab), TO-263AA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SC1566IM-2.5TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC1566IM-2.5TRT
Manufacturer:
SEMTEC
Quantity:
944
The SC1566 is a high performance positive voltage
regulator designed for use in applications requiring very
low dropout voltage at up to 3 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 heat sink size reduction or elimination.
Additionally, the five pin versions of SC1566 have an
enable pin, to further reduce power dissipation while shut
down. The SC1566 provides excellent regulation over
variations in line, load and temperature.
The SC1566 is available as three terminal fixed output
voltage and five terminal fixed or adjustable output
voltage devices with enable. Two package options are
available: TO-263 and TO-220.
Revision: April 27, 2005
POWER MANAGEMENT
Description
Typical Application Circuits
ENABLE
ENABLE
VIN
VIN
VIN
C1
C1
C1
1
2
1
2
1
(1)(2)
VIN
EN
VIN
EN
VIN
U1
SC1566IT-1.8
U1
SC1566I5T-2.5
U1
SC1566I5T-2.5
GND
2
GND
GND
3
3
VO
ADJ
ADJ
VO
VO
3
5
4
5
4
1
C2
Features
Applications
C2
R1
R2
350mV dropout @ 3A
Adjustable output from 1.2V to 4.8V
2.5V and 1.8V options (5 pin parts also adjustable
externally using resistors)
Over current and over temperature protection
Enable pin
10µA quiescent current in shutdown
Low reverse leakage (output to input)
Full industrial temperature range
TO-220 and TO-263 packages
Battery powered systems
Motherboards and notebook computers
Peripheral cards
Network cards
Set top boxes
Medical equipment
3.0 Amp Regulator With Enable
Notes:
(1) Maximum VO setpoint for 1.8V parts = 5.4V
(2) This device is designed to operate with
ceramic input and output capacitors
VO = 1.8V
VO = 2.5V
C2
VO
Very Low Dropout
1.200
VO = See equation below
(R1
R2
R2)
SC1566
www.semtech.com
Volts

Related parts for SC1566IM-2.5TRT

SC1566IM-2.5TRT Summary of contents

Page 1

... ADJ GND SC1566I5T-2.5 5 VIN ADJ GND SC1566IT-1 1.8V VIN VO Notes: GND C2 (1) Maximum VO setpoint for 1.8V parts = 5.4V 2 (2) This device is designed to operate with ceramic input and output capacitors 1 SC1566 Very Low Dropout VO = See equation below 1.200 (R1 R2 2.5V www.semtech.com Volts ...

Page 2

... Electrical Characteristics Unless specified Adjustable Option ( Fixed Options (V = GND 0.7V) to 5.5V and I ADJ 2005 Semtech Corp > 2.2V to 5.5V and I = 10µA to 3A. ADJ TH(ADJ 3A. Values in bold apply over the full operating temperature range SC1566 www.semtech.com ° ° ° C ° C ° C ° ...

Page 3

... Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this requirement. Adjustable versions only. (4) Guaranteed by design. (5) When V exceeds this threshold, the “Sense Select” switch disconnects the internal feedback chain from ADJ the error amplifier and connects V 2005 Semtech Corp. > 2.2V to 5.5V and I = 10µA to 3A. ADJ TH(ADJ) ...

Page 4

... 2005 Semtech Corp. Ordering Information TO-220 Notes: (1) Where -X.X denotes voltage options. Available n voltages are: 2.5V and 1.8V. (2) Output voltage can be adjusted using external resistors, see Pin Descriptions below. (3) Only available in tape and reel packaging. A reel contains 800 devices. (4) Only available in tube packaging. A tube contains 50 devices. (5) T-XX = Straight in-line ...

Page 5

... POWER MANAGEMENT Block Diagram * 5 lead versions only 2005 Semtech Corp. 5 SC1566 www.semtech.com ...

Page 6

... I = 10mA O 1.200 1.195 1.190 1.185 1.180 1.175 -50 - (°C) J 2005 Semtech Corp. 500 150°C 450 400 25°C 350 0°C 300 -40°C 250 200 150 100 50 0 2.5 3.0 3.5 -50 Output Voltage (2.5V) vs. Junction 2.550 VIN = 5.5V 2.540 2 ...

Page 7

... Although designed for use with ceramic output capacitors, the SC1566 is extremely tolerant of output capacitor ESR values and thus will also work comfortably with tantalum output capacitors. For refer- ence, the phase-margin contour of Figure 1. can be used 2005 Semtech Corp ...

Page 8

... ESR(Ohms) Co=220uF, Stable Region: 0.001 2005 Semtech Corp. = 85°C, we can This should be achievable for the TO-263 package using A(MAX) pcb copper area to aid in conducting the heat away from the device, such as a large (~2 squ. inch) pad connected to the tab of the device. Internal ground/power planes 85 and air flow will also assist in removing heat ...

Page 9

... POWER MANAGEMENT Outline Drawing - T0-263-3 Minimum Land Pattern - TO-263-3 2005 Semtech Corp. 9 SC1566 www.semtech.com ...

Page 10

... POWER MANAGEMENT Outline Drawing - TO-263-5 Minimum Land Pattern - TO-263-5 2005 Semtech Corp. 10 SC1566 www.semtech.com ...

Page 11

... POWER MANAGEMENT Outline Drawing - TO-220-3 Outline Drawing - TO-220-5 2005 Semtech Corp. 11 SC1566 www.semtech.com ...

Page 12

... POWER MANAGEMENT Outline Drawing - TO-220-5 (T-XX-SB Option) 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 12 SC1566 www.semtech.com ...

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