LTC3205EUF#PBF Linear Technology, LTC3205EUF#PBF Datasheet - Page 4

• Manufacturer Part Number: LTC3205EUF#PBF
• Description: IC LED DRVR WT/RGB BCKLGT 24-QFN
• Manufacturer: Linear Technology
• Type: Backlight, White LED, RGB (Serial Interface)r

Specifications of LTC3205EUF#PBF

• Topology: PWM, Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)
• Number Of Outputs: 9
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: RGB, White LED
• Frequency: 600kHz ~ 1.1MHz
• Voltage - Supply: 2.8 V ~ 4.5 V
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 250mA
• Internal Switch(s): Yes
• Efficiency: 92%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

LTC3205
TYPICAL PERFOR A CE CHARACTERISTICS
4
1.0
0.9
0.8
0.7
0.6
1.0
0.2
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.8
0.6
0.4
0
0
–40
2.7
1:1 Mode Switch Resistance
vs Temperature
2:3 Mode CPO Voltage in
Current Limit
V
vs Input Voltage
0
I
V
T
CPO
DV
IN
A
IN
= 25 C
CC
Shutdown Current
= 4.2V
= 100mA
3.0
100
–15
= V
V
IN
V
IN
LOAD CURRENT (mA)
IN
TEMPERATURE ( C)
3.3
= 3.6V
200
INPUT VOLTAGE (V)
T
10
A
T
= –40 C
A
3.6
300
= 25 C
V
IN
35
= 3.3V
400
3.9
T
V
W
A
IN
60
= 85 C
500
= 3.9V
4.2
3205 G04
3205 G09
3205 G13
U
600
4.5
85
1000
700
900
800
600
3.2
3.0
2.8
2.6
2.4
2.2
2.0
60
90
80
70
50
–40
2.7
2.7
2:3 Mode Charge Pump Open-
Loop Output Resistance vs
Temperature (3/2V
1:1 Mode No Load Supply Current
vs V
Oscillator Frequency
vs V
V
V
C
T
I
MS
IN
CPO
IN
A
= 25 C
= 3V
= C
T
= I
IN
IN
A
3.0
= 4.2V
–15
3
RGB
= –40 C
CPO
Voltage
= 0 A
= C
INPUT VOLTAGE (V)
TEMPERATURE ( C)
3.3
3.3
V
FLY1
IN
10
VOLTAGE (V)
T
T
A
= C
A
= 85 C
3.6
3.6
= 25 C
FLY2
IN
35
– V
= 1 F
3.9
3.9
CPO
60
4.2
4.2
)/I
CPO
3205 G05
3205 G12
3205 G07
4.5
85
4.5
0.5
0.4
0.3
0.2
0.1
4.8
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
10
0
9
8
7
6
5
4
3
2
0
1
2.7
2:3 Mode CPO Voltage
vs Load Current
DV
vs DV
0
0
2:3 Mode Supply Current
vs I
V
T
T
V
IN
A
A
V
IN
CC
IN
= 25 C
= 25 C
CPO
= 3.6V
= DV
= 3.1V
3.0
Shutdown Current
CC
50
V
CC
(I
50
IN
LOAD CURRRENT (mA)
IN
LOAD CURRENT (mA)
= 3.2V
DV
3.3
T
– 3/2I
A
V
CC
100
IN
= –40 C
T
VOLTAGE (V)
= 3.3V
A
= 25 C
100
3.6
V
CPO
V
IN
IN
150
= 3.4V
= 3.6V
T
)
A
3.9
V
= 85 C
IN
150
= 3.0V
V
200
IN
4.2
= 3.5V
3205 G08
3205 G10
3205 G06
3205f
200
250
4.5