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參數(shù)資料
| 型號： | LTC3408EDD |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5MHz, 600mA Synchronous Step-Down Regulator with Bypass Transistor |
| 中文描述： | 1.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, M0-229-WEED-1, DFN-8 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 156K |
| 代理商： | LTC3408EDD |
5
LTC3408
3408f
Output Ripple Waveform
Load Step Response
REF Transient
V
OUT
vs V
REF
TYPICAL PERFOR U
(From Figure 1)
V
10mV/DIV
I
L
100mA/DIV
200ns/DIV
V
IN
= 3.6V
V
REF
= 0.6V
I
LOAD
= 0A
3408 G16
V
100mV/DIV
I
L
500mA/DIV
I
500mA/DIV
20
μ
s/DIV
V
IN
= 3.6V
V
REF
= 0.6V
I
LOAD
= 0mA TO 600mA
3408 G17
V
REF
(V)
0
V
O
1.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3408 G19
0.5
1.5
V
IN
= 4.2V
I
L
= 100mA
I
L
= 600mA
PU
V
OUT
(Pins 1, 8):
Output Voltage Feedback Pin. An internal
resistive divider divides the output voltage down by 3 for
comparison to the external reference voltage. The drain of
the P-channel bypass MOSFET is connected to this pin.
V
IN
(Pins 2, 7):
Main Supply Pin. Must be closely de-
coupled to GND, Pin 3, with a 10
μ
F or greater ceramic
capacitor.
GND (Pin 3):
Ground Pin.
SW (Pin 4):
Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchro-
nous power MOSFET switches.
RUN (Pin 5):
Run Control Input. Forcing this pin above
1.5V enables the part. Forcing this pin below 0.3V shuts
down the device. In shutdown, all functions are disabled
drawing <1
μ
A supply current. Do not leave RUN floating.
REF (Pin 6):
External Reference Input. Controls the output
voltage to 3
×
the applied voltage at REF. Also turns on the
bypass MOSFET when V
REF
> 1.2V.
Exposed Pad (Pin 9):
Connect to GND, Pin 3.
V
0.5V/DIV
V
1V/DIV
40
μ
s/DIV
V
IN
= 4.2V
V
REF
= 0V TO 1.4V
R
LOAD
= 5
3408 G18
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| LTC3408EDD#PBF | 功能描述:IC REG BUCK W/BYPASS TXRX 8-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LTC3408EDD#TR | 功能描述:IC REG BUCK W/BYPASS TXRX 8-DFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LTC3408EDD#TRPBF | 功能描述:IC REG BUCK W/BYPASS TXRX 8-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LTC3409 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:600mA Low Vin Buck Regulator in 3mm x 3mm DFN |
| LTC3409A | 制造商:LINER 制造商全稱:Linear Technology 功能描述:600mA Low VIN Buck Regulator in 3mm × 3mm DFN |
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