LTC3531-3 Linear Technology, LTC3531-3 Datasheet - Page 16

• Manufacturer Part Number: LTC3531-3
• Description: Buck-Boost Synchronous DC/DC Converters
• Manufacturer: Linear Technology

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RELATED PARTS
LTC3531/
LTC3531-3.3/LTC3531-3
PART NUMBER
LT1930/LT1930A
LTC3400/LTC3400B
LTC3401/LTC3402
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3421
LTC3422
LTC3426
LTC3428
LTC3429
LTC3440
LTC3441
LTC3442
LTC3443
LTC3458
LTC3458L
LTC3459
LTC3525/LTC3525-3.3/
LTC3525-5
16
TYPICAL APPLICATIO S
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
USB POWER
FROM USB
DESCRIPTION
1A (I
600mA (I
1A/2A (I
300mA (I
600mA (I
3A (I
1.5A (I
2A (I
4A (I
600mA (I
600mA (I
600mA (I
2MHz Synchronous Buck-Boost with Auto-Burst
1.2A (I
1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter
1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter
10V Micropower Synchronous Step-Up DC/DC Converter
400mA (I
with Output Disconnect
5V (NOM)
SUSPEND
●
FAX: [phone]
CABLE
C1, C2: TAIYO YUDEN JMK316BJ106ML
L1: MURATA LQH43CN100K03 (650mA 0.24Ω)
SW
SW
SW
SW
+
–
SW
OUT
Li-Ion
), 1.2MHz/2.2MHz, High Effi ciency Step-Up DC/DC Converter
), 3MHz Synchronous Step-Up DC/DC Converter
), 1.2MHz Step-Up DC/DC Converter in SOT-23
), 1.2MHz Step-Up DC/DC Converter
SW
SW
OUT
OUT
SW
OUT
OUT
SW
), 3MHz Synchronous Step-Up DC/DC Converter
), 600kHz Synchronous Buck-Boost DC/DC Converter
), 3MHz Synchronous Step-Up DC/DC Converter
), 1.2MHz Synchronous Step-Up DC/DC Converter
), 500kHz Synchronous Step-Up DC/DC Converter
), Synchronous Step-Up DC/DC Converter
), 1.5MHz Synchronous Step-Down DC/DC Converter
), 1.5MHz Synchronous Step-Down DC/DC Converter
), 2MHz Synchronous Buck-Boost DC/DC Converter
), 2MHz Synchronous Buck-Boost DC/DC Converter
SHDN WALL NTC
IN1
IN2
HPWR
SUSP
BAT
GND
U
LTC4055
CLPROG
●
TIMER
www.linear.com
CHRG
PROG
ACPR
VNTC
OUT
Complete USB/Li-Ion Powered System
with 3.3V
V
100k
OUT
: USB OR BATTERY
OUT
100k
and Linear Charger
0.1µF
3.1V TO 5.25V
C1
22µF
OTHER
DC/DC
V
SW1
SHDN
LTC3531-3.3
IN
10µH
GND
L1
COMMENTS
V
I
V
I
V
I
V
I
V
I
V
I
V
I
V
V
V
I
V
I
V
I
V
V
I
V
V
V
V
2mm × 2mm SC70 Package
Q
Q
SD
SD
SD
SD
SD
SD
SD
SD
SD
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
V
= 4.2mA/5.5mA, I
= 19µA/300µA, I
SW2
: 2.6V to 16V, V
: 0.85V to 5V, V
: 0.5V to 5V, V
: 2.7V to 6V, V
: 2.5V to 5.5V, V
: 0.5V to 4.5V, V
: 0.5V to 4.5V, V
: 1.6V to 5V, V
: 1.6V to 5V, V
: 0.5V to 4.4V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.4V to 5.5V, V
: 2.4V to 5.5V, V
: 1.5V to 6V, V
: 1.5V to 6V, V
: 1.5V to 5.5V, V
: 0.5V to 4.5V, I
< 1µA, MS Package
≤ 1µA, MS10 Package
≤ 1µA, ThinSOT Package
< 1µA, QFN Package
< 1µA, 3mm × 3mm DFN Package
< 1µA, QFN Package
< 1µA, MS, DFN Packages
< 1µA, DFN Package
< 1µA, MS Package
OUT
© LINEAR TECHNOLOGY CORPORATION 2005
3531 TA05
OUT(MAX)
OUT(MIN)
OUT
OUT
OUT
OUT
V
3.3V
160mA
C2
10µF
OUT(MAX)
OUT(MAX)
Q
SD
OUT(MIN)
OUT(MAX)
OUT(MAX)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT
OUT(MIN)
OUT
OUT
SD
= 7µA, I
up to 5.5V
up to 5.5V
up to 7.5V
up to 6V
< 1µA, ThinSOT Package
< 1µA, ThinSOT Package
up to 5.25V
up to 10V
= 0.8V, I
= 6V, I
= 34V,
= 5V,
= 0.6V, I
= 5V, I
= 5.5V, I
= 5.5V, I
= 5.25V, I
SD
= 5.25V, I
= 5.25V, I
LT 1105 • PRINTED IN USA
< 1µA,
Q
Q
Q
= 38µA,
= 20µA,
= 20µA,
Q
Q
Q
Q
Q
Q
= 20µA,
= 25µA,
= 25µA,
= 28µA,
= 12µA,
= 25µA,
3531f