LTC3205_15 Datasheet, PDF (16/16 Pages) Linear Technology – Multidisplay LED Controller

LTC3205
TYPICAL APPLICATIO
Li-Ion
FROM
MICROCONTROLLER
Using the RGB Display as a Camera Light
1µF
1µF
1µF
5 4 6 3 16
C1⁺ C1^–
C2⁺ C2^–
V_IN
15
CPO
10
ENRGB
12
DV_CC
7
D_IN
8
LTC3205
SCLK
9
LD
2
MAIN1
1
MAIN2
24
MAIN3
23
MAIN4
22
SUB1
21
SUB2
18
RED
19
GREEN
20
BLUE
SGND STEPUP I_MS I_RGB
17 11 14
13
WHITE
24.9k 24.9k
6.2k
2.2µF
L1
2.2µH
D1
5
1
4 ^VIN
SW
3
SHDN
FB
LT1930A
GND
2
38.3k
V_RGB = 6V
I_RGB = 300mA TOTAL
10k
10µF
1µF
WHITE WHITE WHITE WHITE WHITE
RED
I_LED = 20mA
GREEN BLUE
I_FLASH = 100mA PER R, G, B, LED
3205 TA07
Si1406DH
FLASH
RELATED PARTS
PART NUMBER
LT^®1618
DESCRIPTION
Constant Current, Constant Voltage, 1.4MHz
High Efficiency Boost Regulator
COMMENTS
Up to 16 White LEDs, V_IN: 1.6V to 18V, V_OUT(MAX): 34V, I_Q: 1.8mA, I_SD: ≤1µA,
10-Lead MS
LTC1911-1.5
LT1932
250mA (I_OUT), 1.5MHz High Efficiency
Step-Down Charge Pump
Constant Current, 1.2MHz High Efficiency White
LED Boost Regulator
75% Efficiency, V_IN: 2.7V to 5.5V, V_OUT(MIN): 1.5V/1.8V, I_Q: 180µA,
I_SD: ≤10µA, MS8
Up to 8 White LEDs, V_IN: 1V to 10V, V_OUT(MAX): 34V, I_Q: 1.2mA, I_SD: ≤1µA,
ThinSOT^TM
LT1937
Constant Current, 1.2MHz High Efficiency White Up to 4 White LEDs, V_IN: 2.5V to 10V, V_OUT(MAX): 34V, I_Q: 1.9mA, I_SD: ≤1µA,
LED Boost Regulator
ThinSOT, SC70
LTC3200-5
Low Noise, 2MHz Regulated Charge Pump
White LED Driver
Up to 6 White LEDs, V_IN: 2.7V to 4.5V, V_OUT(MAX): 5V, I_Q: 8mA, I_SD: ≤1µA,
ThinSOT
LTC3201
Low Noise, 1.7MHz Regulated Charge Pump
White LED Driver
Up to 6 White LEDs, V_IN: 2.7V to 4.5V, V_OUT(MAX): 5V, I_Q: 6.5mA, I_SD: ≤1µA,
10-Lead MS
LTC3202
Low Noise, 1.5MHz Regulated Charge Pump
White LED Driver
Up to 8 White LEDs, V_IN: 2.7V to 4.5V, V_OUT(MAX): 5V, I_Q: 5mA, I_SD: ≤1µA,
10-Lead MS
LTC3251
500mA (I_OUT), 1MHz to 1.6MHz Spread Spectrum 85% Efficiency, V_IN: 3.1V to 5.5V, V_OUT(MIN): 0.9V to 1.6V, I_Q: 9µA, I_SD: ≤1µA,
Step-Down Charge Pump
10-Lead MS
LTC3405/LTC3405A 300mA (I_OUT), 1.5MHz Synchronous Step-Down 95% Efficiency, V_IN: 2.7V to 6V, V_OUT(MIN): 0.8V, I_Q: 20µA, I_SD: ≤1µA,
DC/DC Converter
ThinSOT
LTC3406/LTC3406B 600mA (I_OUT), 1.5MHz Synchronous Step-Down 95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN): 0.6V, I_Q: 20µA, I_SD: ≤1µA,
DC/DC Converter
ThinSOT
LTC3440
600mA (I_OUT), 2MHz Synchronous Buck-Boost 95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN): 2.5V, I_Q: 25µA, I_SD: ≤1µA,
DC/DC Converter
10-Lead MS
LT3465/LT3465A
1.2MHz/2.7MHz with Internal Schottky
Up to 6 White LEDs, V_IN: 12.7V to 16V, V_OUT(MAX): 34V, I_Q: 1.9mA, I_SD: <1µA,
ThinSOT
ThinSOT is a trademark of Linear Technology Corporation.
3205f
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
LT/TP 0504 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2003