EEWORLDEEWORLDEEWORLD

Part Number

Search

LT1579CGN-3.3#PBF

Description
IC LDO REG SMART DUAL3.3V 16SSOP
CategoryPower/power management    The power supply circuit   
File Size291KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LT1579CGN-3.3#PBF Overview

IC LDO REG SMART DUAL3.3V 16SSOP

LT1579CGN-3.3#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionSSOP,
Contacts16
Manufacturer packaging codeGN
Reach Compliance Codecompliant
ECCN codeEAR99
Maximum drop-back voltage 10.75 V
Maximum input voltage20 V
Minimum input voltage3.8 V
JESD-30 codeR-PDSO-G16
JESD-609 codee3
length4.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Working temperatureTJ-Max125 °C
Working temperature TJ-Min
Maximum output current 10.3 A
Maximum output voltage 13.4 V
Minimum output voltage 13.2 V
Nominal output voltage 13.3 V
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1.75 mm
surface mountYES
Terminal surfaceTin (Sn)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3.9 mm
Base Number Matches1
LT1579
300mA Dual Input Smart
Battery Backup Regulator
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTION
The LT
®
1579 is a dual input, single output, low dropout
regulator. This device is designed to provide an
uninterruptible output voltage from two independent input
voltage sources on a priority basis. All of the circuitry
needed to switch smoothly and automatically between
inputs is incorporated.
The LT1579 can supply 300mA of output current from
either input at a dropout voltage of 0.4V. Quiescent current
is 50µA, dropping to 7µA in shutdown. Two comparators
are included to monitor input voltage status. Two addi-
tional status flags indicate which input is supplying power
and provide an early warning against loss of output
regulation when both inputs are low. A secondary select
pin is provided so that the user can force the device to
switch from the primary input to the secondary input.
Internal protection circuitry includes reverse-battery pro-
tection, current limiting, thermal limiting and reverse-
current protection.
The device is available in fixed output voltages of 3V, 3.3V
and 5V, and as an adjustable device with a 1.5V reference
voltage. The LT1579 regulators are available in narrow
16-lead SO and 16-lead SSOP packages with all features,
and in SO-8 with limited features.
Maintains Output Regulation with Dual Inputs
Dropout Voltage: 0.4V
Output Current: 300mA
50µA Quiescent Current
No Protection Diodes Needed
Two Low-Battery Comparators
Status Flags Aid Power Management
Adjustable Output from 1.5V to 20V
Fixed Output Voltages: 3V, 3.3V and 5V
7µA Quiescent Current in Shutdown
Reverse-Battery Protection
Reverse Current Protection
Remove, Recharge and Replace Batteries Without
Daisy-Chained Control Outputs
Loss of Regulation
APPLICATIONS
s
s
s
Dual Battery Systems
Battery Backup Systems
Automatic Power Management for
Battery-Operated Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
5V Dual Battery Supply
OUTPUT VOLTAGE (V) INPUT VOLTAGE (V)
Automatic Input Switching
+
5V
300mA
4.7µF
12
10
8
6
4
2
0
5.05
5.00
4.95
0
2
4
6
8 10 12 14 16 18 20
TIME (ms)
1578 TA02
+
1µF
IN1
2.7M
LBI1
1M
LT1579-5
OUT
V
IN1
I
IN1
SS
+
1µF
IN2
2.7M
LBI2
1M
SHDN
LBO1
LB02
BACKUP
DROPOUT
BIASCOMP
GND
0.01µF
1579 TA01
TO
POWER
MANAGEMENT
U
U
U
SWITCHOVER
POINT
V
IN2
= 10V
I
LOAD
= 50mA
80
I
IN2
60
40
20
0
INPUT CURRENT (mA)
1
[Help] Please help me look at the program
;-------------------------------------------------------------------------- ;[H1+H2]+[ADR]+[CMD]+[CRC] ;[L1+L2]+[ID]+[TEM_1]+[TEM_2]+[TEM_3]+[TEM_4]+[TEM_5]+[DOOR] ;-----------------------------------...
chinafeibaby Embedded System
Add the STM32F469-Disco development board to Mbed
A few days ago, the Mbed website briefly released a link to the STM32F469-Disco, but it disappeared soon. In fact, the webpage is still there, but it is not in the list. We just need to enter the foll...
dcexpert stm32/stm8
MSP430-Reset Circuit Introduction
[size=3]POR is the power-on reset signal, which is only generated when the following two events occur: [/size] [size=3]1. The chip is powered on. [/size] [size=3]2. RST/NMI is set to reset mode, and a...
fish001 Microcontroller MCU
About Bluetooth External Antenna
Grounding points and radio frequency points are pathways for protection, so why do WIFI and Bluetooth need them?...
lx331lx RF/Wirelessly
SEED-DIM3517 board has arrived, show pictures
There are also CDs with information, which will be sent to trial users today! [if gte mso 9]>Normal07.8 磅02falsefalsefalseMicrosoftInternetExplorer4...
EEWORLD社区 ARM Technology
Good stuff for C51 learning (contains 31 examples of circuits and C programs, especially useful for beginners)
Good stuff for C51 learning (contains 31 examples of circuits and C programs, especially useful for beginners)...
tonytong 51mcu

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 213  1188  1893  2590  1857  5  24  39  53  38 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号