LTC3409 LINER [Linear Technology], LTC3409 Datasheet - Page 16

• Manufacturer Part Number: LTC3409
• Description: 600mA Low Vin Buck Regulator in 3mm x 3mm DFN
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIO
LTC3409
RELATED PARTS
PART NUMBER
LTC1878
LTC1879
LT3020
LTC3025
LTC3404
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3407
LTC3411
VLDO and ThinSOT are trademarks of Linear Technology Corporation.
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
80
90
85
75
70
65
60
55
50
95
0.0001
V
V
IN
OUT
f = 1.7MHz
= 1.8V
DESCRIPTION
600mA (I
DC/DC Converter
1.20A (I
DC/DC Converter
100mA, Low Voltage VLDO
100mA, Low Voltage VLDO
600mA (I
DC/DC Converter
300mA (I
DC/DC Converter
600mA (I
DC/DC Converter
Dual, 600mA (I
DC/DC Converter
1.25A (I
DC/DC Converter
= 1.2V
0.001
●
OUTPUT CURRENT (mA)
FAX: [phone]
Efficiency
OUT
OUT
OUT
OUT
OUT
OUT
f = 2.6MHz
), 550kHz, Synchronous Step-Down
), 4MHz, Synchronous Step-Down
0.01
), 550kHz, Synchronous Step-Down
), 1.4MHz, Synchronous Step-Down
), 1.5MHz, Synchronous Step-Down
), 1.5MHz, Synchronous Step-Down
OUT
2-Cell to 1.2V/600mA Regulator for High Efficiency and Low Profile
1.8V TO 3V
), 1.5MHz, Synchronous Step-Down
U
0.1
V
IN
●
3409 TA02b
TM
www.linear.com
1
C
4.7µF
CER
IN
3, 4
7
5
8
V
RUN
MODE
SYNC
GND
IN
LTC3409
9
SGND
SW
V
2
FB
3409 TA02a
6
1
COMMENTS
96% Efficiency, V
I
95% Efficiency, V
I
V
I
V
I
96% Efficiency, V
I
95% Efficiency, V
I
96% Efficiency, V
I
95% Efficiency, V
I
95% Efficiency, V
I
SD
SD
Q
Q
SD
SD
SD
SD
SD
AC COUPLED
IN
IN
301k
= 120µA, I
= 54µA, I
100mV/DIV
500mA/DIV
500mA/DIV
: 0.9V to 10V, V
: 0.9V to 5.5V, V
< 1µA, MS8 Package
< 1µA, 16-Lead TSSOP
< 1µA, MS8 Package
< 1µA, ThinSOT
< 1µA, ThinSOT Package
< 1µA, 10-Lead MSE Package
< 1µA, 10-Lead MS Package
22pF
C
C
*SUMIDA CDRH2D09NP-2R2NC
IN
OUT
2.2µH*
287k
I
V
LOAD
: TDK C1608X5R0J475M
OUT
: TDK C1608X5R0G106M
I
L
SD
V
V
I
SD
LOAD
IN
OUT
< 1µA, V
= 1.8V
< 3µA, V
= 1.2V
IN
IN
IN
IN
IN
IN
IN
= 200mA TO 600mA
OUT(MIN)
: 2.7V to 6V, V
: 2.7V to 10V, V
: 2.7V to 6V, 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
OUT(MIN)
TM
Package
OUT
C
10µF
CER
OUT
OUT
= ADJ, DFN Package
= 0.20V, Dropout Voltage = 0.15V,
= 0.40V, Dropout Voltage = 0.05V,
V
= ADJ, DFN/MS8 Packages
1.2V
OUT
Load Step
20µs/DIV
OUT(MIN)
OUT(MIN)
© LINEAR TECHNOLOGY CORPORATION 2005
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
LT/TP 0205 1K • PRINTED IN THE USA
= 0.8V, I
= 0.8V, I
= 0.8V, I
= 0.8V, I
= 0.6V, I
= 0.6V, I
= 0.8V, I
Q
Q
3409 TA02c
Q
= 10µA,
= 10µA,
Q
Q
Q
Q
= 15µA,
= 20µA,
= 20µA,
= 40µA,
= 60µA,
3409f