SC1565I5M-1.8TR Semtech, SC1565I5M-1.8TR Datasheet

IC, LDO VOLT REG, 1.8V, 1.5A, TO-263-5

SC1565I5M-1.8TR

Manufacturer Part Number
SC1565I5M-1.8TR
Description
IC, LDO VOLT REG, 1.8V, 1.5A, TO-263-5
Manufacturer
Semtech
Datasheet

Specifications of SC1565I5M-1.8TR

Primary Input Voltage
5.5V
Output Voltage Fixed
1.8V
Dropout Voltage Vdo
350mV
No. Of Pins
5
Output Current
1.5A
Operating Temperature Range
-40°C To +85°C
Termination Type
SMD
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC1565I5M-1.8TRT
Manufacturer:
Semtech
Quantity:
9 891
Part Number:
SC1565I5M-1.8TRT
Manufacturer:
SEMETECH
Quantity:
789
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: November 25, 2009
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

SC1565I5M-1.8TR Summary of contents

Page 1

... Notebook Computers GND 2 7 VIN GND ENABLE GND VIN 4 5 ADJ GND VO SC1565IS-X.X + 1.200 (R1 R2) Volts R2 2 VIN 1 ENABLE SC1565 Very Low Dropout (1) (1) (1) ( GND 2 7 VIN GND GND 4 5 ADJ GND C1 C2 SC1565IS-X.X 1.200 ( SC1565I5T-X.X 4 VIN GND ADJ www.semtech.com + R2) Volts VO ...

Page 2

... Note: (1) 1 square inch of FR-4, double sided, 1 oz. minimum copper weight. 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 1.5A. ADJ TH(ADJ 1.5A. Values in bold apply over the full operating temperature range SC1565 ...

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 1.5A. ADJ TH(ADJ) ...

Page 4

... POWER MANAGEMENT Pin Configurations SO-8 SOT-223 TO-220 2005 Semtech Corp. Ordering Information Notes: (1) Where -X.X denotes voltage options. Available voltages are: 2.5V and 1.8V. Output voltage can be adjusted using external resistors, see Pin Descriptions on page 5. (2) Where -X.X denotes voltage options. Available voltages are: 2 ...

Page 5

... POWER MANAGEMENT Block Diagram * * Not present on SOT-223, TO-220-3 or TO-263-3 Pin Descriptions 1.200 (R1 R2 2005 Semtech Corp Volts SC1565 www.semtech.com * . ...

Page 6

... Temperature vs. Output Current 2.550 VIN = 5.5V 2.540 2.530 2.520 2.510 2.500 2.490 2.480 2.470 2.460 2.450 -50 - (°C) J 2005 Semtech Corp. Dropout Voltage (I 500 450 400 350 300 250 200 150 100 50 0 3.8 4.0 4.2 4.4 4.6 2.2 2.4 Output Voltage (2.5V) vs. Junction 2 ...

Page 7

... T (°C) J Off-State Quiescent Current vs. Junction Temperature 10 VIN = 5. -50 - (°C) J 2005 Semtech Corp. 600 VIN = 3.3V 590 580 570 I = 10mA O 560 550 540 I = 1.5A O 530 520 510 500 75 100 125 150 -50 75 100 125 150 7 SC1565 Quiescent Current vs. Junction Temperature ...

Page 8

... External voltage selection resistors: the use of 1% resistors, and designing for a current flow recommended to ensure a well regulated output (thus R2 120k ). 2005 Semtech Corp. Thermal Considerations The power dissipation in the SC1565 is approximately equal to the product of the output current and the input to output voltage differential: ...

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 ESR(Ohms) Figure 1: Phase-margin Contour Plot ...

Page 10

... REFERENCE JEDEC STD MS-012, VARIATION AA. Land Pattern - SO-8 X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A, RLP NO. 300A. 2005 Semtech Corp. A DIM MIN .053 N A1 .004 A2 .049 ...

Page 11

... DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD TO-261, VARIATION AA. Land Pattern - SOT-223 NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A. 2005 Semtech Corp INCHES DIM N MIN - .000 A2 .059 b ...

Page 12

... POWER MANAGEMENT Outline Drawing - T0-263-3 Minimum Land Pattern - TO-263 2005 Semtech Corp DIMENSIONS INCHES E/2 DIM MIN NOM MAX MIN - .160 .190 - A1 .000 .010 b .020 - .039 - b1 .045 .070 .015 .029 c1 .045 - .065 H D .326 - .380 .270 - E .380 .420 E1 .245 - - H .575 .625 14.61 e ...

Page 13

... POWER MANAGEMENT Outline Drawing - TO-263-5 Minimum Land Pattern - TO-263 2005 Semtech Corp DIMENSIONS INCHES E/2 DIM MIN NOM MAX MIN .160 - - A1 .000 - b .020 c - .015 .045 - D .326 .270 .380 - E1 .245 - H .575 e .067 BSC L .070 - 15° aaa 0° - aaa .010 A SEATING PLANE B A1 ...

Page 14

... POWER MANAGEMENT Outline Drawing - TO-220 NOTES: 1. CONTROLLING DIMENSIONS ARE IN INCHES. 2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. Outline Drawing - TO-220 bbb NOTES: Contact Information Phone: (805)498-2111 FAX (805)498-3804 2005 Semtech Corp. Ø P DIM aaa SEATING b PLANE Ø ...

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