SC1592ISTRT Semtech, SC1592ISTRT Datasheet

IC ADJ REG LDO 3A 8SOIC

SC1592ISTRT

Manufacturer Part Number
SC1592ISTRT
Description
IC ADJ REG LDO 3A 8SOIC
Manufacturer
Semtech
Datasheet

Specifications of SC1592ISTRT

Regulator Topology
Positive Adjustable
Voltage - Output
Adjustable
Voltage - Input
1.25 ~ 16 V
Voltage - Dropout (typical)
0.26V @ 3A
Number Of Regulators
1
Current - Output
3A
Current - Limit (min)
5A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SC1592ISTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC1592ISTRT
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
Part Number:
SC1592ISTRT
Manufacturer:
SEMTECH
Quantity:
15 575
The SC1592 is a 3A low dropout high performance
linear voltage regulator, that provides a low voltage, high
current output with a minimum of external components,
utilizing dual supply configuration.
The SC1592 offers a wide input voltage range from 1.25V
to 16V and is ideal for applications that need to convert
down to 0.8V.
Additionally, the SC1592 is fully protected with an exter-
nally programmable current limit, and thermal shutdown.
Also, there is an EN input which enables or shuts down
the device.
The SC1592 voltage regulator is available in 7-lead DDPAK
and SOIC-8L EDP packages.
Revision: January 27, 2004
Typical Application Circuit
POWER MANAGEMENT
Description
+3.3V Vcntl
+2.5V Vin
1uF
10uF
C1
C2
CNTL
IN
TTL
EN
SC1592
Adjustable Positive Voltage Regulator
GND
1
Features
Applications
SENSE
ILIM
Wide input range, V
3A Guaranteed Output Current
260mV (typ) @ 3A dropout voltage in dual supply
mode
1% Initial Accuracy
Adjustable output voltage, down to 0.8V
Programmable current limiting and thermal
Fast transient response
Excellent line and load regulation
Power SO-8 and 7-lead DDPAK
Low voltage logic supplies
Microprocessor and chipset supplies
Split plane microprocessor supplies
Advanced graphics cards supplies
Sound cards and auxiliary power supplies
SMPS post regulator
shutdown
Low Dropout High Performance
OUT
100
R1
R3
R2
66.5
53
V
IN
CNTL
= 1.25V to 16V,
V
V
OUT
REF
= 3V to 16V
+1.8V Vout
C3
47uF(cer)
0
1 (
8 .
V
R
R
typ
2
3
)
.
SC1592
www.semtech.com
V
REF

Related parts for SC1592ISTRT

SC1592ISTRT Summary of contents

Page 1

... Microprocessor and chipset supplies Split plane microprocessor supplies Advanced graphics cards supplies Sound cards and auxiliary power supplies SMPS post regulator CNTL OUT SC1592 IN SENSE GND EN ILIM R1 TTL 100 1 SC1592 = 1.25V to 16V 16V CNTL +1.8V Vout C3 R2 47uF(cer) 66 OUT REF typ . REF www.semtech.com ...

Page 2

... 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 Electrical Characteristics Unless specified 2.5V 3.3V CNTL Values in bold indicate -40°C < T < +125° 2004 Semtech Corp 1.8V 10mA 100 , T OUT OUT LIM < SC1592 25° ° < ° ...

Page 3

... Values in bold indicate -40°C < T < +125° Notes: (1) For load regulation use a 1ms current pulse width, d.c. (2) Current limit is programmable, I LIM 2004 Semtech Corp. = 1.8V 10mA 100 , T OUT OUT LIM 10% when measuring VOUT. 240 V OUT R LIM 3 SC1592 = T = 25° www.semtech.com ° C ° C µ µ ...

Page 4

... DDPAK) Top View ILIM CNTL 4 5 (SOIC-8L EDP) Pin Descriptions 2004 Semtech Corp. Ordering Information Notes (1) Only available in tape and reel packaging. A reel contains 800 devices for TO-263 package and 2500 devices for SOIC package. (2) When ordering Evaluation Board please specify pack- age needed (TO-263(DDPAK) or SOIC(EDP)) ...

Page 5

... Externally programmable current limit resistor. LIM Accuracy of the current limit setting is better than ±20% over full operating temperature range. *Internal ESD structure. In cases where EN is permanently tied to V resistor should be inserted in the link between EN and V 2004 Semtech Corp. Figure 1 , it’s recommended that a 10-20k IN . ...

Page 6

... Initial accuracy of the internal voltage reference V = 0.8V 1% over full temperature range. REF This commands the use of 0.5% or better accuracy resistors to build a precision power supply. 2004 Semtech Corp. +3.3V Vcntl C1 2.2uF +2.5V Vin up to 16V, providing C2 ...

Page 7

... POWER MANAGEMENT Typical Characteristics 2004 Semtech Corp. Load Transient Reponse I step : rate /uS Time (2ms/div) I step : rate /uS Time (200us/div) 7 SC1592 1.8V OUT V = 3.3V CNTL C = 22uF 100uF OUT 1.8V OUT V = 3.3V CNTL C = 22uF 100uF OUT www.semtech.com ...

Page 8

... Semtech Corp. Load Regulation V = 3.3V CNTL V = 2.5V IN 0.0 0.5 1.0 1.5 2.0 OUTPUT CURRENT (A) Output Voltage vs. Tem perature V = 3.3V CNTL V = 2.5V ...

Page 9

... POWER MANAGEMENT Typical Characteristics (Cont.) 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 -40 2004 Semtech Corp. EnableThreshold vs. Temperature V = 3.3V CNTL 1.8V OUT I = 10mA OUT - TEMPERATURE ( SC1592 100 120 www.semtech.com ...

Page 10

... POWER MANAGEMENT Typical Characteristics (Cont.) 1.1 1.0 0.9 0.8 0.50 0.40 0.30 0.20 0.10 0.00 2004 Semtech Corp. Dropout Voltage (Control Supply) INITIAL V = 3.3V CNTL 1.8V OUT OUTPUT CURRENT (A) Dropout Voltage (Input Supply 3.3V CNTL INITIAL 1.8V OUT OUTPUT CURRENT (A) ...

Page 11

... POWER MANAGEMENT Typical Characteristics (Cont.) 10000 1000 100 10 2004 Semtech Corp. Contol Current vs. Tem perature (In Shutdow n) 1 -40 - TEMPERATURE ( o C) Control Current vs Tem perature (In Regulation) 100 10 1 -40 - TEMPERATURE ( o 11 SC1592 V = 3.3V CNTL 10mA OUT 80 100 120 OUT OUT OUT V = 3.3V CNTL ...

Page 12

... POWER MANAGEMENT Typical Characteristics (Cont.) 1500 1400 1300 1200 1100 1000 900 800 700 600 500 500 450 400 350 300 250 200 150 100 50 0 2004 Semtech Corp. Dropout Voltage vs. Temperature ( CNTL OUT INITIAL 2. 1.8v OUT OUT - TEMPERATURE ( o C) Dropout Voltage vs ...

Page 13

... POWER MANAGEMENT Typical Characteristics (Cont.) 10 0.1 0.01 0.001 0.01 0.001 0.01 0.001 2004 Semtech Corp. 47uF ESR vs. Iout 1 Stable Area 0 0.5 1 1.5 2 OUTPUT CURRENT (A) 150uF ESR vs. Iout 10 1 0.1 Stable Area 0 0.5 1 1.5 OUTPUT CURRENT (A) 330uF ESR vs. Iout 10 1 0.1 Stable ...

Page 14

... POWER MANAGEMENT Evaluation Board Schematic +3.3V Vcntl C1 2.2uF +2.5V Vin C2 22uF (cer) V OUT V REF Evaluation Board Schematic - Bill of Material 2004 Semtech Corp. CNTL OUT U1 SC1592 IN SENSE R opt EN GND ILIM 10k 100 REF typ . ± ± ± ± SC1592 +1.8V Vout C3 100uF ...

Page 15

... POWER MANAGEMENT Evaluation Board - SOIC-8 EDP 2004 Semtech Corp. 15 SC1592 www.semtech.com ...

Page 16

... POWER MANAGEMENT Evaluation Board - TO-263-7L (DDPAK) 2004 Semtech Corp. 16 SC1592 www.semtech.com ...

Page 17

... POWER MANAGEMENT Outline Drawing - SOIC-8L EDP Land Pattern - SOIC-8L EDP 2004 Semtech Corp. 17 SC1592 www.semtech.com ...

Page 18

... POWER MANAGEMENT Outline Drawing - TO-263-7L (DDPAK) Recommended Land Pattern - TO-263-7L (DDPAK) Contact Information 2004 Semtech Corp. Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 18 SC1592 (FOR REFERENCE) www.semtech.com ...

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