Datasheet

LTC3531/
LTC3531-3.3/LTC3531-3
2
3531fa
ABSOLUTE AXI U RATI GS
W
WW
U
FOR ATIOPACKAGE/ORDER I
UUW
ELECTRICAL CHARACTERISTICS
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 3.6V V
OUT
= 3.3V unless otherwise noted.
VIN, VOUT, SW1, SW2, SHDN Voltage ...........–0.3 to 6V
SW1, SW2 Voltage, <100ns Pulse ..................–0.3 to 7V
Operating Temperature Range (Notes 2, 3) –40°C to 85°C
(Note 1)
Storage Temperature Range ................... –65°C to 125°C
Lead Temperature (TS6, Soldering, 10 sec) .......... 300°C
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Minimum Startup Voltage ● 1.65 1.8 V
V
OUT
Regulation
Output Voltage (3.3V Version) No Load ● 3.25 3.32 3.39 V
Output Voltage (3V Version) No Load ● 2.95 3.02 3.09 V
FB Voltage (Adj Version) No Load ● 1.20 1.225 1.25 V
FB Input Current (Adj Version) V
FB
= 1.225V 1 50 nA
Operating Current
Quiescent Current in Sleep: V
IN
V
IN
= 5V, V
OUT
= 3.6V, FB = 1.3V 16 30 µA
V
OUT
V
OUT
= 3.6V 6 10 µA
Shutdown Current V
IN
SHDN
= 0V, V
OUT
= 0V 1 µA
Switch Performance
NMOS Switch Leakage Switches B and C 0.2 2 µA
PMOS Switch Leakage Switches A and D 0.2 2 µA
NMOS B, C R
DSON
V
IN
= 5V 0.5 Ω
PMOS A R
DSON
V
IN
= 5V 0.5 Ω
6 SW1
5 V
IN
4 SHDN
SW2 1
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
GND, PGND 2
V
OUT
3
T
JMAX
= 125°C, θ
JA
= 102°C/W
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
EXPOSED PAD IS GND (PIN 9), MUST BE SOLDERED TO PCB
*NC FOR LTC3531-3.3V, LTC3531-3.0V.
5
6
7
9
8
4
3
2
1SW1
V
IN
GND
SHDN
PGND
SW2
V
OUT
FB*
ORDER PART NUMBER S6 PART MARKING ORDER PART NUMBER DD PART MARKING
LTC3531ES6-3.3
LTC3531ES6-3
LTBWM
LTCBK
LTC3531EDD
LTC3531EDD-3.3
LTC3531EDD-3
LBVC
LBWH
LCBV
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
T
JMAX
= 125°C, θ
JA
= 43°C/W