LTC3526LEDC 查看數據表（PDF） - Linear Technology
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LTC3526LEDC Datasheet PDF : 16 Pages
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LTC3526L/LTC3526LB
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN Voltage................................................... –0.3V to 6V
SW Voltage
DC............................................................ –0.3V to 6V
Pulsed <100ns......................................... –0.3V to 7V
⎯S⎯H⎯D⎯N, FB Voltage ........................................ –0.3V to 6V
VOUT............................................................. –0.3V to 6V
Operating Temperature Range
(Notes 2, 5).............................................. –40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
SW 1
6 VOUT
GND 2
7
5 FB
VIN 3
4 SHDN
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
TJMAX = 125°C, θJA = 60°C/W (NOTE 6)
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PC BOARD
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3526LEDC#PBF
LTC3526LBEDC#PBF
LTC3526LEDC#TRPBF LCSS
LTC3526LBEDC#TRPBF LCST
6-Lead (2mm × 2mm) Plastic DFN
6-Lead (2mm × 2mm) Plastic DFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the specified operating
temperature range of –40°C to 85°C, otherwise specifications are at TA = 25°C. VIN = 1.2V, VOUT = 3.3V unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Minimum Start-Up Input Voltage
Input Voltage Range
ILOAD = 1mA
0.68 0.8
V
After Start-Up. (Minimum Voltage is Load Dependent) ● 0.5
5
V
Output Voltage Adjust Range
● 1.5
5.25
V
Feedback Pin Voltage
● 1.165 1.195 1.225
V
Feedback Pin Input Current
VFB = 1.30V
1
50
nA
Quiescent Current—Shutdown
V⎯S⎯H⎯D⎯N = 0V, Not Including Switch Leakage, VOUT = 0V
0.01
1
μA
Quiescent Current—Active
Measured on VOUT, Nonswitching
250
500
μA
Quiescent Current—Burst
Measured on VOUT, FB > 1.230V (LTC3526L Only)
9
18
μA
N-Channel MOSFET Switch Leakage Current
VSW = 5V
0.1
5
μA
P-Channel MOSFET Switch Leakage Current
VSW = 5V, VOUT = 0V
0.1
10
μA
N-Channel MOSFET Switch On Resistance
VOUT = 3.3V
0.4
Ω
P-Channel MOSFET Switch On Resistance
VOUT = 3.3V
0.6
Ω
N-Channel MOSFET Current Limit
● 550
750
mA
Current Limit Delay to Output
(Note 3)
60
ns
Maximum Duty Cycle
Minimum Duty Cycle
Switching Frequency
VFB = 1.15V
VFB = 1.3V
● 87
90
%
●
0
%
● 0.75
1
1.25
MHz
⎯S⎯H⎯D⎯N Pin Input High Voltage
0.8
V
⎯S⎯H⎯D⎯N Pin Input Low Voltage
0.3
V
3526lfb
2
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