參數(shù)資料
型號(hào): 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): 2/12頁
文件大?。?/td> 162K
代理商: LTC3443
LTC3215
2
3215f
V
IN
to GND............................................... –0.3V to 5.5V
CPO to GND............................................. –0.3V to 5.5V
EN................................................... –0.3V to V
IN
+ 0.3V
I
CPO
, I
ILED
(Note 2) ........................................... 1000mA
CPO Short-Circuit Duration ............................ Indefinite
Storage Temperature Range................. –65
°
C to 125
°
C
Operating Temperature Range (Note 3).. –40
°
C to 85
°
C
ORDER PART
NUMBER
T
JMAX
= 125
°
C,
θ
JA
= 43
°
C/W
EXPOSED PIN (PIN 11) IS GND
MUST BE SOLDERED TO PCB
LTC3215EDD
ABSOLUTEW
(Note 1)
W
W
U
PACKAGE/ORDER IU
U
W
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
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DD PART
MARKING
LBPX
TOP VIEW
11
DD PACKAGE
10-LEAD (3mm
×
3mm) PLASTIC DFN
10
9
8
6
7
4
5
3
2
1
C1
GND
C2
V
IN
EN
C2
+
C1
+
CPO
I
LED
I
SET
PARAMETER
Input Power Supply
V
IN
Operating Voltage
I
VIN
Operating Current
CONDITIONS
MIN
TYP
MAX
UNITS
2.9
4.4
V
I
CPO
= 0mA, 1x Mode
I
CPO
= 0mA, 1.5x
I
CPO
= 0mA, 2x Mode
EN = LOW
300
7
9.2
2.5
μ
A
mA
mA
μ
A
I
VIN
Shutdown Current
LED Current
LED Current Ratio (I
LED
/I
SET
)
I
LED
Dropout Voltage
Mode Switching Delay (LED Warmup Time)
LED Current On Time
Charge Pump (CPO)
1x Mode Output Voltage
1.5x Mode Output Voltage
2x Mode Output Voltage
1x Mode Output Impedance
1.5x Mode Output Impedance
2x Mode Output Impedance
CLK Frequency
EN
High Level Input Voltage (V
IH
)
Low Level Input Voltage (V
IL
)
Input Current (I
IH
)
Input Current (I
IL
)
7
I
LED
= 200mA to 600mA
Mode Switch Threshold, I
LED
= 200mA
3139
3270
120
2.5
130
3400
mA/mA
mV
ms
μ
s
EN to LED Current On
I
CPO
= 0mA
I
CPO
= 0mA
I
CPO
= 0mA
V
IN
4.6
5.1
0.25
1.5
1.7
0.9
V
V
V
V
IN
= 3.4V, V
CPO
< 4.6V, C1 = C2 = 2.2
μ
F
V
IN
= 3.2V, V
CPO
< 5.1V, C1 = C2 = 2.2
μ
F
0.6
1.2
MHz
1.4
V
V
0.4
1
1
–1
–1
μ
A
μ
A
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LTC3444 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller