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參數(shù)資料
| 型號： | LTC3404MPMS8#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 204K |
| 代理商： | LTC3404MPMS8#PBF |
6
LTC3404
3404fb
RUN (Pin 1): Run Control Input. Forcing this pin below
0.4V shuts down the LTC3404. In shutdown all functions
are disabled drawing < 1
μA supply current. Forcing this
pin above 1.2V enables the LTC3404. Do not leave RUN
floating.
ITH (Pin 2): Error Amplifier Compensation Point. The
current comparator threshold increases with this control
voltage. Nominal voltage range for this pin is from 0.5V
to 1.9V.
VFB (Pin 3): Feedback Pin. Receives the feedback voltage
from an external resistive divider across the output.
GND (Pin 4): Ground Pin.
SW (Pin 5): Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchro-
nous power MOSFET switches.
VIN (Pin 6): Main Supply Pin. Must be closely decoupled
to GND, Pin 4.
SYNC/MODE (Pin 7): External Clock Synchronization and
Mode Select Input. To synchronize with an external clock,
apply a clock with a frequency between 1MHz and 1.7MHz.
To select Burst Mode operation, tie to VIN. Grounding this
pin selects pulse skipping mode. Do not leave this pin
floating.
PLL LPF (Pin 8): Output of the Phase Detector and Control
Input of Oscillator. Connect a series RC lowpass network
from this pin to ground if externally synchronized. If
unused, this pin may be left open.
UU
U
PI FU CTIO S
Load Step Response
40
μs/DIV
VIN = 3.6V
VOUT = 1.5V
L = 4.7
μH
CIN = 10μF
COUT = 22μF
ILOAD = 200mA TO 500mA
PULSE SKIPPING MODE
VOUT
100mV/DIV
IL
500mA/DIV
ITH
1V/DIV
3404 G17
40
μs/DIV
VIN = 3.6V
VOUT = 1.5V
L = 4.7
μH
CIN = 10μF
COUT = 22μF
ILOAD = 50mA TO 500mA
PULSE SKIPPING MODE
VOUT
100mV/DIV
IL
500mA/DIV
ITH
1V/DIV
3404 G18
40
μs/DIV
VIN = 3.6V
VOUT = 1.5V
L = 4.7
μH
CIN = 10μF
COUT = 22μF
ILOAD = 50mA TO 500mA
Burst Mode OPERATION
VOUT
100mV/DIV
IL
500mA/DIV
ITH
1V/DIV
3404 G19
TYPICAL PERFOR A CE CHARACTERISTICS
UW
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3405 | 制造商:LINEAR 制造商全稱:LINEAR 功能描述:Standalone 250mA Li-Ion Battery Charger in 2 × 2 DFN |
| LTC3405A | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5MHz, 300mA Synchronous Step-Down Regulator in ThinSOT |
| LTC3405A-1.375 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.375V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT |
| LTC3405A-1.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5V, 1.8V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT |
| LTC3405A-1.8 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5V, 1.8V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT |
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