LTC3525-3.3 Datasheet, PDF (2/12 Pages) Linear Technology – 400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

LTC3525-3.3/LTC3525-5
ABSOLUTE AXI U RATI GS
(Note 1)
V_IN, V_OUT Voltage........................................ – 0.3V to 6V
SW Voltage ................................................ – 0.3V to 6V
SW Voltage < 100ns ................................... – 0.3V to 7V
SHDN Voltage ............................................ – 0.3V to 6V
Operating Temperature Range
(Notes 2, 5) ........................................ – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SHDN 1
GND 2
V_IN 3
6 SW
5 GND
4 V_OUT
SC6 PACKAGE
6-LEAD PLASTIC SC70
T_JMAX = 125°C
θ_JA = 256°C/ W IN FREE AIR, θ_JA = 150°C/ W ON BOARD
OVER GROUND PLANE
ORDER PART NUMBER SC6 PART MARKING
LTC3525ESC6-3.3
LTC3525ESC6-5
LBTG
LBWT
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 specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS (LTC3525-3.3)
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T_A = 25°C.
V_IN = 1.2V, V_SHDN = 1.2V, V_OUT = 3.3V unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX
Input Start-Up Voltage
0.85
1
Output Voltage
(Note 6)
● 3.20 3.30 3.40
Quiescent Current, V_OUT
Quiescent Current, V_IN
Quiescent Current, V_IN - Shutdown
SHDN = V_IN (Note 4)
SHDN = V_IN (Note 4)
SHDN = 0V, V_OUT = 0V
Not Including Switch Leakage
7
15
0.5
3
0.1
1
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
V_IN = V_OUT = V_SW = 5V, SHDN = 0V
V_IN = V_SW = 5V, V_OUT = 0V, SHDN = 0V
0.1
1
0.1
3
0.5
PMOS Switch On Resistance
0.8
Peak Current Limit
0.4
0.45
SHDN Threshold
0.4
0.6
1
SHDN Input Current
V_SHDN = V_IN or V_OUT
0.01
1
UNITS
V
V
µA
µA
µA
µA
µA
Ω
Ω
A
V
µA
3525f
2