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參數(shù)資料
| 型號： | LTC3443 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 700mA Low Noise High Current LED Charge Pump |
| 中文描述： | 700mA的低噪音，高電流LED電荷泵 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 162K |
| 代理商： | LTC3443 |
LTC3215
3
3215f
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. Assumes an
operating duty cycle of
≤
10% under absolute maximum conditions for
durations less than 10 seconds. Max current for continuous operation is
350mA.
Note 3:
The LTC3215E is guaranteed to meet performance specifications
from 0
°
C to 70
°
C. Specifications over the –40
°
C to 85
°
C ambient
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
TYPICAL PERFOR U
I
LED
Dropout Voltage
vs LED Current
I
LED
Pin Current
vs I
LED
Pin Voltage
I
LED
vs R
SET
LED CURRENT (mA)
0
200
D
400
800
600
3216 G01
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
I
LED
PIN VOLTAGE (V)
0
I
L
600
500
400
300
200
100
0
0.2
0.4
0.6
0.8
3216 G02
1.0
TEMPERATURE (
°
C)
–40
O
)
10
60
85
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
3216 G05
–15
35
–40
10
60
85
–15
35
TEMPERATURE (
°
C)
O
)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
3216 G06
I
LED
= 500mA
400mA
300mA
200mA
100mA
V
IN
= 3V
V
CPO
= 4.2V
C
IN
= C1 = C2 = 2.2
μ
F
C
CPO
= 4.7
μ
F
V
IN
= 3V
V
CPO
= 4.8V
C
IN
= C1 = C2 = 2.2
μ
F
C
CPO
= 4.7
μ
F
TEMPERATURE (
°
C)
–40
O
)
35
85
3216 G07
–15
10
60
0.31
0.29
0.27
0.25
0.23
0.21
0.19
0.17
0.15
I
CPO
= 200mA
V
IN
= 3.6V
V
IN
= 3.3V
V
IN
= 3.9V
V
IN
= 3.6V
R
SET
(k
)
I
L
1573 G06
1000
800
600
400
200
0
0
10
20
25
5
15
30
35
40
1.5x Mode Charge Pump
Open-Loop Output Resistance
(1.5V
IN
– V
CPO
)/I
CPO
vs Temperature
2x Mode Charge Pump
Open-Loop Output Resistance
(2V
IN
– V
CPO
)/I
CPO
vs Temperature
1x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
(T
A
= 25
°
C unless otherwise specified)
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 3.6V, C
IN
= C1 = C2 = 2.2
μ
F, C
CPO
= 4.7
μ
F.
The
●
denotes the specifications which apply over the full operating
PARAMETER
I
SET
V
ISET
I
ISET
CONDITIONS
MIN
TYP
MAX
UNITS
I
SET
= 50
μ
A
●
1.195
1.22
1.245
225
V
●
μ
A
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| LTC3443EDE#TR | 功能描述:IC REG BUCK BOOST SYNC ADJ 12DFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
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