LTC3447EDD Linear Technology, LTC3447EDD Datasheet - Page 16

• Manufacturer Part Number: LTC3447EDD
• Description: IC CONV DC/DC SYNC BUCK 10DFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3447EDD

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.69 ~ 2.05 V
• Current - Output: 600mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-DFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC3447
TYPICAL APPLICATIO
RELATED PARTS
PART NUMBER
LT1761
LT1762
LT1763
LTC1844
LT1962
LT3020
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3407
LTC3411
LTC3412
LTC3445
LTC3455
LTC4055
LTC4411/LTC4412
ThinSOT, VLDO and PowerPath are trademarks of Linear Technology Corporation.
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
100mA, Low Noise Micropower, LDO
150mA, Low Noise Micropower, LDO
500mA, Low Noise Micropower, LDO
150mA, Very Low Dropout LDO
300mA, Low Noise Micropower, LDO
Low V
300mA (I
DC/DC Converter
600mA (I
DC/DC Converter
Dual 600mA, 1.5MHz Synchronous Step-Down
DC/DC Converter
1.25A (I
DC/DC Converter
2.5A (I
DC/DC Converter,
600mA, 1.5MHz Synchronous Step-Down DC/DC Converter
with Two LDOs and PowerPath
Dual DC/DC Converter with USB Power Manager and
Li-Ion Battery Charger
USB Power Manager and Li-Ion Battery Charger
PowerPath Controllers in ThinSOT
●
FAX: [phone]
IN
OUT
I
OUT
2
(0.9V) Low V
BATTERY
C BUS
OUT
OUT
), 4MHz Synchronous Step-Down
SDA
SCL
Li Ion
), 4MHz Synchronous Step-Down
), 1.5MHz Synchronous Step-Down
), 1.5MHz Synchronous Step-Down
10k
20k
V
CCD
10k
U
4.7 F
OUT
C
IN
PWREN
●
(0.2V) VLDO
www.linear.com
4.7 F
TM
Li-Ion Battery to 1.4V/1V Regulator
V
FB
PGOOD
RUN
V
SDA
SCL
EXPOSED PADDLE
Manager
IN
CCD
TO GROUND
LTC3447
TM
V
GND
OUT
SW
3.3 H
C
L1: SUMIDA CDRH3D16-3R3
L1
IN
, C
3447 TA02
OUT
: TDK C1608X5R0J475MT
COMMENTS
V
I
3.3V, 5V, ThinSOT
with 1µF Ceramic Capacitors
V
I
Package. Low Noise < 20µV
V
I
Package. Low Noise < 20µV
V
I
ThinSOT Package. Low Noise < 30µV
Ceramic Capacitors
V
I
Package. Low Noise < 20µV
V
I
V
Package
V
Package
V
QFN Packages
V
Package
V
TSSOP16E Package
V
Two LDOs I
V
Li-Ion Battery, USB, 5V Wall Adapter, QFN24 Package
Standalone Charger, Automatic Switchover when Input Supply
is Removed
More Effi cient than Diode ORing
Q
Q
Q
Q
Q
Q
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
C
4.7 F
= 20µA, I
= 25µA, I
= 30µA, I
= 40µA, I
= 30µA, I
= 120µA, I
: 1.8V to 20V, V
: 1.8V to 20V, V
: 1.8V to 20V, V
: 6.5V to 1.6V, V
: 1.8V to 20V, V
: 0.9V to 10V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 3V to 5.5V, Seamless Transition Between Input Sources and
V
OUT
OUT
=
1.4V AT 500mA IN NORMAL OPERATION
1V AT 200 A IN STBY MODE
2
SD
SD
SD
SD
SD
C Interface, Back-Up Battery Management, QFN24
SD
< 1µA, V
< 1µA, V
< 1µA, V
< 1µA, V
< 1µA, V
< 1µA, V
TM
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT
Package. Low Noise < 20µV
OUT
OUT
OUT
OUT
OUT
= 0.85V to 1.55V, I
OUT
= Adj, 1.5V, 1.8V, 2V, 2.5V, 2.8V, 3V,
= Adj, 2.5V, 3V, 3.3V, 5V, MS8
= 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V, S8
= Adj, 1.5V, 1.8V, 2.5V, 2.8V, 3.3V,
= 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V, MS8
= 1.22V, Dropout Voltage = 0.30V,
= 1.22V, Dropout Voltage = 0.30V,
= 1.22V, Dropout Voltage = 0.30V,
= 1.22V, Dropout Voltage = 0.27V,
= 0.20V, Dropout Voltage = 0.15V,
RMS(P-P)
RMS(P-P)
RMS(P-P)
= 1.25V, Dropout Voltage = 0.08V,
= 0.8V, I
= 0.6V, I
= 0.6V, I
= 0.8V, I
= 0.8V, I
= Adj, DFN Package
© LINEAR TECHNOLOGY CORPORATION 2005
Q
Q
Q
Q
Q
RMS(P-P)
= 20µA, I
= 20µA, I
= 40µA, I
= 60µA, I
= 60µA, I
LT/TP 0505 500 • PRINTED IN USA
Q
= 27µA, I
, Stable with 1µF
SD
SD
SD
SD
SD
RMS(P-P)
< 1µA, ThinSOT
< 1µA, ThinSOT
< 1µA, MS10E,
< 1µA, MS10
< 1µA,
SD
< 1µA,
, Stable
3447f