LTC4080X 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
제조사
LTC4080X
Linear Technology
LTC4080X Datasheet PDF : 20 Pages
| |||
LTC4080X
TYPICAL APPLICATIO
Li-Ion Battery Charger with 1.5V Buck Regulator
VCC
(3.75V
to 5.5V)
R4, 510Ω
D2
CIN
4.7µF
VCC
BAT
ACPR
CHRG
LTC4080X
EN_CHRG
SW
EN_BUCK
FB
MODE GND PROG
*COILCRAFT LPO1704-103M
R3
510Ω
D1
500mA
L1, 1OµH*
CPL
10pF
R1
715k
CBAT +
4.7µF
4.2V
Li-Ion
BATTERY
VOUT
(1.5V/300mA)
RPROG
806Ω
R2
806k
COUT
4.7µF
4080X TA02
Buck Efficiency vs Load Current
(VOUT = 1.5V)
100
1000
EFFICIENCY
80 (Burst)
EFFICIENCY
(PWM)
60
100
POWER
LOSS 10
(PWM)
40
20
0
0.01
POWER LOSS
1
(Burst)
VBAT = 3.8V
VOUT = 1.5V
0.1
L = 10µH
C = 4.7µF
0.01
0.1
1
10 100 1000
LOAD CURRENT (mA)
4080X G13
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
Battery Chargers
LTC3550
Dual Input USB/AC Adapter Li-Ion Battery Charger Synchronous Buck Converter, Efficiency: 93%, Adjustable Output: 600mA,
with Adjustable Output 600mA Buck Converter Charge Current: 950mA Programmable, USB Compatible, Automatic Input Power
Detection and Selection
LTC3550-1
Dual Input USB/AC Adapter Li-Ion Battery Charger Synchronous Buck Converter, Efficiency: 93%, Output: 1.875V at 600mA,
with 600mA Buck Converter
Charge Current: 950mA Programmable, USB Compatible, Automatic Input Power
Detection and Selection
LTC4054
Standalone Linear Li-Ion Battery Charger with Thermal Regulation Prevents Overheating, C/10 Termination
Integrated Pass Transistor in ThinSOTTM
LTC4061
Standalone Li-Ion Charger with Thermistor
Interface
4.2V, ±0.35% Float Voltage, Up to 1A Charge Current, 3mm × 3mm
DFN Package
LTC4061-4.4
Standalone Li-Ion Charger with Thermistor
Interface
4.4V (Max), ±0.4% Float Voltage, Up to 1A Charge Current, 3mm × 3mm
DFN Package
LTC4062
Standalone Linear Li-Ion Battery Charger with
Micropower Comparator
Up to 1A Charge Current, Charges from USB Port, Thermal Regulation
3mm × 3mm DFN Package
LTC4063
Li-Ion Charger with Linear Regulator
Up to 1A Charge Current, 100mA, 125mV LDO, 3mm × 3mm DFN Package
LTC4080
Standalone 500mA Charger with 300mA
Synchronous Buck
For 1-Cell Li-Ion/Polymer Batteries; Trickle Charge; Timer Termination +C/10;
Thermal Regulation, Buck Output: 0.8V to VBAT, Buck Input: 2.7V to 5.5V, 3mm ×
3mm DFN-10 Package
Power Management
LTC3405/LTC3405A 300mA (IOUT), 1.5MHz, Synchronous Step-Down 95% Efficiency, VIN: 2.7V to 6V, VOUT = 0.8V, IQ = 20µA, ISD < 1µA,
DC/DC Converter
ThinSOT Package
LTC3406/LTC3406A 600mA (IOUT), 1.5MHz, Synchronous Step-Down 95% Efficiency, VIN: 2.5V to 5.5V, VOUT = 0.6V, IQ = 20µA, ISD < 1µA,
DC/DC Converter
ThinSOT Package
LTC3411
1.25A (IOUT), 4MHz, Synchronous Step-Down 95% Efficiency, VIN: 2.5V to 5.5V, VOUT = 0.8V, IQ = 60µA, ISD < 1µA,
DC/DC Converter
MS Package
LTC3440
LTC4411/LTC4412
600mA (IOUT), 2MHz, Synchronous Buck-Boost
DC/DC Converter
Low Loss PowerPathTM Controller in ThinSOT
95% Efficiency, VIN: 2.5V to 5.5V, VOUT = 2.5V, IQ = 25µA, ISD < 1µA,
MS Package
Automatic Switching Between DC Sources, Load Sharing, Replaces ORing Diodes
LTC4413
Dual Ideal Diode in DFN
2-Channel Ideal Diode ORing, Low Forward On-Resistance, Low Regulated
Forward Voltage, 2.5V ≤ VIN ≤ 5.5V
ThinSOT and PowerPath are trademarks of Linear Technology Corporation.
4080Xf
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LT 0307 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2007
Share Link: 