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LTC3215
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN to GND ............................................... –0.3V to 5.5V
CPO to GND ............................................. –0.3V to 5.5V
EN ................................................... –0.3V to V IN + 0.3V
I CPO , I ILED (Note 2) .............................................1000mA
CPO Short-Circuit Duration .............................. Indefinite
Storage Temperature Range .................. –65°C to 125°C
Operating Temperature Range (Note 3).... –40°C to 85°C
PIN CONFIGURATION
TOP VIEW
C2 + 1 10 C1 –
C1 + 2 9 GND
CPO 3 11 8 C2 –
I LED 4 7 V IN
I SET 5 6 EN
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LTC3215EDD#PBF
TAPE AND REEL
LTC3215EDD#TRPBF
PART MARKING
LBPX
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 85°C
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/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications ar e at T A = 25°C. V IN = 3.6V, C IN = C1 = C2 = 2.2μF, C CPO = 4.7μF.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Power Supply
V IN Operating Voltage
I VIN Operating Current
I CPO = 0mA, 1x Mode
I CPO = 0mA, 1.5x
I CPO = 0mA, 2x Mode
●
2.9
300
7
9.2
4.4
V
μA
mA
mA
I VIN Shutdown Current
EN = LOW
2.5
7
μA
LED Current
LED Current Ratio (I LED /I SET )
I LED = 200mA to 600mA
●
3139
3270
3400
mA/mA
I LED Dropout Voltage
Mode Switching Delay (LED Warm-Up Time)
LED Current On Time
Mode Switch Threshold, I LED = 200mA
EN to LED Current On
120
2.5
130
mV
ms
μs
Charge Pump (CPO)
1x Mode Output Voltage
1.5x Mode Output Voltage
2x Mode Output Voltage
1x Mode Output Impedance
1.5x Mode Output Impedance
2x Mode Output Impedance
I CPO = 0mA
I CPO = 0mA
I CPO = 0mA
V IN = 3.4V, V CPO < 4.6V
V IN = 3.2V, V CPO < 5.1V
V IN
4.6
5.1
0.25
1.5
1.7
V
V
V
Ω
Ω
Ω
CLK Frequency
●
0.6
0.9
1.2
MHz
3215fc
2
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