LTC3202 Datasheet, PDF (2/12 Pages) Linear Technology – Low Noise, High Efficiency Charge Pump for White LEDs

LTC3202
ABSOLUTE AXI U RATI GS (Note 1)
V_IN, V_OUT to GND ......................................... –0.3V to 6V
D0, D1 ............................................. –0.3V to V_IN + 0.3V
V_OUT Short-Circuit Duration ............................. Indefinite
I_OUT (Note 2)....................................................... 150mA
Operating Temperature Range (Note 3) ...–40°C to 85°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
D1 1
FB 2
V_OUT 3
V_IN 4
GND 5
TOP VIEW
10 D0
9 C2⁺
8 C1⁺
7 C1^–
6 C2^–
MS PACKAGE
10-LEAD PLASTIC MSOP
T_JMAX = 150°C, θ_JA = 120°C/W
ORDER PART
NUMBER
LTC3202EMS
MS PART MARKING
LTWL
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TOP VIEW
D1 1
10 D0
FB 2
9 C2⁺
V_OUT 3
11
8 C1⁺
V_IN 4
7 C1^–
SGND 5
6 C2^–
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
T_JMAX = 150°C, θ_JA = 44°C/W, θ_JC = 3°C/W
EXPOSED PAD IS PGND (PIN 11) MUST BE
CONNECTED TO GROUND PLANE
ORDER PART
NUMBER
LTC3202EDD
DD PART MARKING
LABB
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.3V unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Power Supply
V_IN Operating Voltage
I_CC Operating Current
I_SHDN Shutdown Current
Feedback Pin Set Points
q 2.7
4.5
V
I_OUT = 0mA, V_OUT = 3.6V, V_IN = D0 = D1 = 4.5V q
V_OUT = 0V
q
2.5
5
mA
1
µA
0.2V Setting Feedback Voltage
0.4V Setting Feedback Voltage
0.6V Setting Feedback Voltage
I_FB
Charge Pump
D0 = 1, D1 = 0, I_OUT = 0mA, V_IN = 3.6V
D0 = 0, D1 = 1, I_OUT = 0mA, V_IN = 3.6V
D0 = 1, D1 = 1, I_OUT = 0mA, V_IN = 3.6V
V_FB = 0.8V
q 188 200 212
mV
q 380 400 420
mV
q 570 600 630
mV
q –50
50
nA
R_OL Open Loop Output Impedance (1.5V_IN – V_OUT)/I_OUT V_IN = 3.3V, V_OUT = 4.4V, V_FB = 0
q
V_OUT Load Regulation (∆V_OUT/∆I_OUT)
I_OUT = 10mA to 90mA, ∆V_FB/∆V_OUT = 1
CLK Frequency
4.5
6
Ω
0.35
mV/mA
1.5
MHz
D0, D1
High Level Input Voltage (V_IH)
Low Level Input Voltage (V_IL)
Input Current (I_IH)
Input Current (I_IL)
DO, D1 = V_IN
DO, D1 = 0V
q 1.3
q
q –1
q –1
V
0.4
V
1
µA
1
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Based on long-term current density limitations.
Note 3: The LTC3202E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
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