LT1579CS8-5#PBF Linear Technology, LT1579CS8-5#PBF Datasheet - Page 20

• Manufacturer Part Number: LT1579CS8-5#PBF
• Description: IC LDO REG SMART DUAL 5V 8-SOIC
• Manufacturer: Linear Technology

Specifications of LT1579CS8-5#PBF

• Function: Back-Up Management
• Battery Type: Smart Batteries
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LT1579
TYPICAL
RELATED PARTS
20
PART NUMBER
LT1175
LTC
LTC1422
LTC1473
LTC1479
LT1521
Hot Swap and PowerPath are trademarks of Linear Technology Corporation.
®
1421
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 [phone]
FAX: [phone] TELEX: 499-3977 www.linear-tech.com
APPLICATION
D4
5.1V
1N751A
IN1
330k
DESCRIPTION
500mA Negative Low Dropout Micropower Regulator
Hot Swap
Hot Swap Controller
Dual PowerPath
PowerPath Controller for Dual Battery Systems
300mA Low Dropout Micropower Regulator with Shutdown
R8
D2
TM
D1 TO D3: 1N4148
Controller
Additional Logic Forces LT1579 Into Shutdown to Protect Input Batteries
RESET
TM
IN2
Switch Driver
R9
1.5M
C1
1 F
C5
0.1 F
U
D3
R1
1M
V
GND
C2
1 F
CC
1/4
74C02
R4
10M
R5
1M
D1
74C02
1/4
1/4
74C02
R2
2.7M
R3
1M
R6
2.7M
R7
1M
IN1
LBI1
LBO1
SS
IN2
LBI2
LBO2
SHDN
LT1579-5
GND
BIASCOMP
DROPOUT
COMMENTS
Adjustable Current Limit, Shutdown Control
Controls Multiple Supplies, 24-Lead SSOP Package
Controls Single Supply, 8-Lead SO Package
Power Path Management for Systems with Multiple Inputs
Complete Power Path Management for Two Batteries,
DC Power Source, Charger and Backup
12 A I
BACKUP
1579 TA03
OUT
Q
, Reverse Battery Protection
NC
R10
1M
C4
0.01 F
MAIN GOOD
LINEAR TECHNOLOGY CORPORATION 1998
C3
4.7 F
1579f LT/TP 0398 4K • PRINTED IN USA
V
5V/300mA
OUT