- 您現在的位置：買賣IC網 > Datasheet目錄41 > LTC3104IMSE#TRPBF (Linear Technology)IC REG DL BCK/LINEAR SYNC 16MSOP Datasheet資料下載
參數資料
| 型號： | LTC3104IMSE#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 15/20頁 |
| 文件大小： | 339K |
| 描述： | IC REG DL BCK/LINEAR SYNC 16MSOP |
| 標準包裝： | 2,500 |
| 拓撲： | 降壓（降壓）同步（1），線性（LDO）（1） |
| 功能： | 任何功能 |
| 輸出數： | 2 |
| 頻率 - 開關： | 1.2MHz |
| 電壓/電流 - 輸出 1： | 0.6 V ~ 13.8 V，300mA |
| 電壓/電流 - 輸出 2： | 0.6 V ~ 14.5 V，10mA |
| 帶 LED 驅動器： | 無 |
| 帶監控器： | 無 |
| 帶序列發生器： | 無 |
| 電源電壓： | 2.5 V ~ 15 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TFSOP（0.118"，3.00mm 寬）裸露焊盤 |
| 供應商設備封裝： | 16-MSOP，裸露焊盤 |
| 包裝： | 帶卷 (TR) |
LTC3104
15
3104f
APPLICATIONS INFORMATION
V
IN
voltage requirements. If used, note that the external
divider current is not included in the LTC3104 quiescent
current specification.
The rising UVLO threshold can be calculated using the
following equation:
V
UVLO
=0.8V 1+
R6
R5
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
For most applications a 0.022礔 will suffice. The capaci-
tor should be placed as close to the respective pins as
possible.
LDO Output Capacitor Selection
The LDO is designed to be stable with a minimum 4.7礔
output capacitor. No series resistor is required when using
low ESR capacitors. For most applications, a 10礔 ceramic
capacitor is recommended. Larger values will improve
transient response and raise the power supply rejection
ratio (PSRR) of the LDO.
LDO Output Voltage Programming
The output voltage is set by a resistive divider according
to the following formula:
V
LDO
=0.6V 1+
R4
R3
?/DIV>
?/DIV>
主站蜘蛛池模板：
关岭|
镇赉县|
长乐市|
伊宁市|
古田县|
赤峰市|
巴林右旗|
阿城市|
饶平县|
清徐县|
巴马|
金堂县|
大荔县|
错那县|
保山市|
江阴市|
甘德县|
凉城县|
丹江口市|
本溪|
封丘县|
鲁山县|
波密县|
固始县|
阿拉善右旗|
那曲县|
阳西县|
安平县|
牡丹江市|
繁峙县|
大渡口区|
大埔县|
阿克苏市|
庆云县|
山阳县|
闸北区|
福贡县|
兴山县|
普兰店市|
女性|
乳山市|
?/DIV>
?/DIV>
?/DIV>
?/DIV>
The external divider is connected to the LDO output, V
LDO
,
as shown in Figure 3. Similar to the buck feedback network,
a feedforward capacitor may be placed in parallel with
resistor R4 for improved transient response. For resistor
values of ~1M a 12pF ceramic capacitor will suffice.
Figure 2. Setting the Undervoltage Lockout Threshold
RUN
LTC3104
GND
IN
R5
R6
3104 F02
FBLDO
R4
R3
C
FF2
3104 F03
V
LDO
GND
LTC3104
Figure 3. Setting the LDO Output Voltage
14
13
10
11
12
4
5
3
2
1
V
INLDO
V
LDO
FBLDO
FB
RUN
V
CC
NC
MODE
V
IN
SW
BST
GND
RUNLDO
PGOOD
6
7
9
8
KELVIN TO V
OUT
V
INLDO
V
LDO
3104 F04
UNINTERRUPTED GROUND PLANE
SHOULD EXIST UNDER ALL COMPONENTS
SHOWN AND UNDER THE TRACES
CONNECTING THOSE COMPONENTS
V
OUT
VIA GROUND PLANE
V
IN
Figure 4. PCB Layout Recommendations
Internal V
CC
Regulator
The LTC3104 uses an internal NMOS source follower
regulator off of V
IN
to generate a low voltage internal rail,
V
CC
. The regulator is designed to deliver current only to
the internal drivers and other internal control circuits and
not to an external load. The V
CC
pin should be bypassed
with a 1礔 or larger ceramic capacitor.
Boost Capacitor Selection
The LTC3104 uses a bootstrapped supply to power the
buck switch gate drivers. When the synchronous rectifier
turns on, an internal PMOS switch turns on synchronously
to charge the boost capacitor, C
BST
, to the voltage on V
CC
.
相關PDF資料 |
PDF描述 |
|---|---|
| LTC3445EUF#TRPBF | IC REG TRPL BUCK/LINEAR 24-QFN |
| LTC3446IDE#PBF | IC REG TRPL BCK/LINEAR 14-DFN |
| LTC3537EUD#TRPBF | IC REG DL BST/LINEAR SYNC 16-QFN |
| LTC3541EDD#TRPBF | IC REG DL BCK/LINEAR SYNC 10-DFN |
| LTC3670EDDB#TRPBF | IC REG TRPL BCK/LINEAR 12DFN |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3105 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3105EDD#PBF | 功能描述:IC CONV DC/DC 400MA HIEFF 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 標準包裝:43 系列:- 應用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數: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 供應商設備封裝:48-QFN（7x7） 包裝:管件 |
| LTC3105EDD#TRPBF | 功能描述:IC CONV DC/DC 400MA HIEFF 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 標準包裝:43 系列:- 應用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數: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 供應商設備封裝:48-QFN（7x7） 包裝:管件 |
| LTC3105EMS#PBF | 功能描述:IC CONV DC/DC STEP DOWN 12-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 標準包裝:2,000 系列:- 應用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數:2 輸出電壓:最低可調至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商設備封裝:30-TSSOP 包裝:帶卷 (TR) |
| LTC3105EMS#TRPBF | 功能描述:IC CONV DC/DC 400MA HIEFF 12MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 標準包裝:43 系列:- 應用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數: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 供應商設備封裝:48-QFN（7x7） 包裝:管件 |
發布緊急采購，3分鐘左右您將得到回復。