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LTC3230 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3230
Description  5-LED Main/Sub Display Driver with Dual LDO
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3230 Datasheet(HTML) 6 Page - Linear Technology

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LTC3230
6
3230fa
TYPICAL PERFORMANCE CHARACTERISTICS
MLED/SLED Pin Current vs
MLED/SLED Pin Voltage
MLED/SLED Current vs ENM/ENS
Strobe Pulses
Efficiency vs VIN Voltage
LDO2 Dropout Voltage vs
Load Current
Output Voltage Accuracy
vs Load Current
LDO1 and LDO2 Load Transient
Response
Output Voltage Accuracy
vs Temperature
LDO1 and LDO2 Current Limit vs
Temperature
MLED/SLED PIN VOLTAGE (V)
0
10
20
30
5
15
25
0.04
0.08
0.12
0.16
3230 G16
0.20
0
VIN = 3.6V
NUMBER OF STROBE PULSES
0
10
15
32
3230 G17
5
0
8
16
24
25
20
VIN = 3.6V
RSET = 17.7k
VIN (V)
2.7
0
10
30
40
50
4.3
90
3230 G18
20
3.5
3.1
4.7
3.9
60
70
80
C1 = C2 = C6 = 1
μF
5 LEDs AT 25mA/LED
VF = 3.45V
TA = 25°C
LOAD CURRENT (mA)
0
0
0.05
0.10
0.15
150 175 200
100
0.35
3230 G19
50
25
125
75
225
0.20
0.25
0.30
LOAD CURRENT (mA)
0
–0.4
–0.2
200
3230 G20
–0.6
–0.8
50
100
150
25
75
125
175
0
–0.5
–0.3
–0.7
–0.1
LDO2
50mV/DIV
AC COUPLED
LDO1
50mV/DIV
AC COUPLED
40
μs/DIV
CLDO = 1μF
3230 G21
ILDO
50mA/DIV
60mA
10mA
TEMPERATURE (
°C)
–40
–0.45
–0.40
–0.30
–0.25
–0.20
0.05
–0.10
040
60
3230 G22
–0.35
–0.05
0
–0.15
–20
20
80
TEMPERATURE (
°C)
–40
350
375
425
450
475
0
40
60
3230 G23
400
–20
20
80
100 120
500



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