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| 型号： | LTC1754ES6-3.3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP 3.3V SOT23-6 |
| 标准包装： | 2,500 |
| 类型： | 切换式电容器（充电泵） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 2 V ~ 4.4 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 40mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | SOT-23-6 |
LTC1754-3.3/LTC1754-5
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
V IN to GND .................................................. – 0.3V to 6V
V OUT to GND ............................................... – 0.3V to 6V
SHDN to GND .............................................. – 0.3V to 6V
I OUT (Note 4) ......................................................... 75mA
V OUT Short-Circuit Duration ............................ Indefinite
Operating Temperature Range (Note 3) ... – 40 ° C to 85 ° C
Storage Temperature Range .................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec)................... 300 ° C
TOP VIEW
V OUT 1 6 C +
GND 2 5 V IN
SHDN 3 4 C –
S6 PACKAGE
6-LEAD PLASTIC SOT-23
T JMAX = 150 ° C, θ JA = 230 ° C/ W
ORDER PART
NUMBER
LTC1754ES6-3.3
LTC1754ES6-5
S6 PART MARKING
LTGK
LTLW
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. C FLY = 1 μ F (Note 2), C IN = 10 μ F, C OUT = 10 μ F.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LTC1754-3.3
V IN
Input Supply Voltage
q
2.0
4.4
V
V OUT
I CC
Output Voltage
Operating Supply Current
2.0V ≤ V IN ≤ 4.4V, I OUT ≤ 20mA
2.5V ≤ V IN ≤ 4.4V, I OUT ≤ 40mA
2.0V ≤ V IN ≤ 4.4V, I OUT = 0mA, SHDN = V IN
q
q
q
3.17
3.17
3.30
3.30
11
3.43
3.43
30
V
V
μ A
V R
η
f OSC
t ON
I SC
Output Ripple
Efficiency
Switching Frequency
V OUT Turn-On Time
Output Short-Circuit Current
V IN = 2.5V, I OUT = 40mA
V IN = 2.0V, I OUT = 20mA
Oscillator Free Running
V IN = 2.0V, I OUT = 0mA
V IN = 2.5V, V OUT = 0V, SHDN = 2.5V
23
82
600
0.8
118
mV P-P
%
kHz
ms
mA
LTC1754-5
V IN
Input Supply Voltage
q
2.7
5.5
V
V OUT
I CC
Output Voltage
Operating Supply Current
2.7V ≤ V IN ≤ 5.5V, I OUT ≤ 25mA
3.0V ≤ V IN ≤ 5.5V, I OUT ≤ 50mA
2.7V ≤ V IN ≤ 5.5V, I OUT = 0mA, SHDN = V IN
q
q
q
4.8
4.8
5.0
5.0
13
5.2
5.2
30
V
V
μ A
V R
η
f OSC
t ON
I SC
Output Ripple
Efficiency
Switching Frequency
V OUT Turn-On Time
Output Short-Circuit Current
V IN = 3V, I OUT = 50mA
V IN = 3V, I OUT = 50mA
Oscillator Free Running
V IN = 3V, I OUT = 0mA
V IN = 3V, V OUT = 0V, SHDN = 3V
65
82.7
700
0.4
150
mV P-P
%
kHz
ms
mA
LTC1754-3.3/LTC1754-5
I SHDN
Shutdown Supply Current
V IN ≤ 3.6V, I OUT = 0mA, V SHDN = 0V
3.6V < V IN , I OUT = 0mA, V SHDN = 0V
q
q
0.01
1
2.5
μ A
μ A
V IH
V IL
SHDN Input Threshold (High)
SHDN Input Threshold (Low)
q
q
1.4
0.3
V
V
I IH
I IL
SHDN Input Current (High)
SHDN Input Current (Low)
SHDN = V IN
SHDN = 0V
q
q
–1
–1
1
1
μ A
μ A
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: 0.6 μ F is the minimum required C FLY capacitance for rated output
current capability. Depending on the choice of capacitor material, a
somewhat higher value of capacitor may be required to attain 0.6 μ F over
temperature.
2
Note 3: The LTC1754ES6-X is guaranteed to meet performance
specifications from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 4: Based on long term current density limitations.
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