- 您現(xiàn)在的位置：買賣IC網(wǎng) > Datasheet目錄41 > LTC3541EDD#TRPBF (Linear Technology)IC REG DL BCK/LINEAR SYNC 10-DFN Datasheet資料下載
參數(shù)資料
| 型號： | LTC3541EDD#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 368K |
| 描述： | IC REG DL BCK/LINEAR SYNC 10-DFN |
| 產品培訓模塊： | More Information on LDOs |
| 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(shù)： | 2 |
| 頻率 - 開關： | 2.25MHz |
| 電壓/電流 - 輸出 1： | 0.8 V ~ 5 V，500mA |
| 電壓/電流 - 輸出 2： | 0.4 V ~ 4.1 V，300mA |
| 帶 LED 驅動器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 是 |
| 電源電壓： | 0.9 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-WFDFN 裸露焊盤 |
| 供應商設備封裝： | 10-DFN（3x3） |
| 包裝： | 帶卷 (TR) |
LTC3541
3541fa
PERATIO
The LTC3541 contains a high efficiency synchronous
buck converter, a very low dropout regulator (VLDO) and
a linear regulator. It can be used to provide up to two
output voltages from a single input voltage making the
LTC3541 ideal for applications with limited board space.
The combination and configuration of these major blocks
within the LTC3541 is determined by way of the control
pins ENBUCK and ENVLDO as defined in Table 1.
With the ENBUCK pin driven to a logic high and ENVLDO
driven to a logic low, the LTC3541 enables the buck con-
verter to efficiently reduce the voltage provided at the V
IN
input pin to an output voltage which is set by an external
feedback resistor network. The buck regulator can be con-
fgured for Pulse-Skip or Burst Mode operation by driving
the MODE pin to a logic high or logic low respectively. The
buck regulator is capable of providing a maximum output
current of 500mA, which must be taken into consideration
when using the buck regulator to provide the power for
both the VLDO and for external loads.
With the ENBUCK pin driven to a logic low and ENVLDO
driven to a logic high, the LTC3541 enables the linear
regulator, providing a low noise regulated output voltage
at the LV
OUT
pin while drawing minimal quiescent current
from the V
IN
input pin. This feature allows output voltage
LV
OUT
to be brought into regulation without the presence
of the LV
IN
voltage.
With the ENBUCK and ENVLDO pins both driven to a
logic high, the LTC3541 enables the high efficiency buck
converter and VLDO regulator, providing dual output opera-
tion from a single input voltage. When configured in this
manner, the LTC3541s auto start-up sequencing feature
will bring the buck output into regulation in a controlled
manner prior to enabling the VLDO regulator without the
U CTIO AL BLOCK DIAGRA
U U
+
VLDO/LINEAR REG
LFB
3541 F01
PGND
GND
500mA BUCK
SW
V
IN
REF
ENVLDO
MODE
FB
GND PGND
REF
REF
LFB
CNTRL
GND
LV
IN
V
IN
CONTROL
LOGIC
4
LV
IN
6
BUCKFB
I
OUT(BUCK)
= 500mA
LV
OUT
5
8
ENBUCK
V
IN
IN(MIN)
e LV
OUT
+ 1.4V
SW
1
10
10礔
22pF
2.2礔
LV
OUT(MAX)
< V
IN
1.4V
I
OUT
= 300mA (VLDO REG)
I
OUT
= 30mA (LINEAR REG)
2.2礖
11
7
3
2
9
Figure 1. LTC3541 Functional Block Diagram
相關PDF資料 |
PDF描述 |
|---|---|
| LTC3670EDDB#TRPBF | IC REG TRPL BCK/LINEAR 12DFN |
| LTC3672BEDC-1#TRPBF | IC REG TRPL BCK/LINEAR 8-DFN |
| LTC3700EMS#TRPBF | IC REG DL BUCK/LINEAR 10MSOP |
| LTC4151HMS#TRPBF | IC PWR MONITOR MS 80V SD 10MSOP |
| LTC4210-2CS6#TRM | IC CONTROLLER HOT SWAP TSOT23-6 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3542 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA, 2.25MHz Synchronous Step-Down DC/DC Converter |
| LTC3542-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA, 2.25MHz 2.8V Output Synchronous Step-Down DC/DC Converter |
| LTC3542EDC#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BUCK 2.25MHZ 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 2.25MHZ, 500mA, DFN-6; Primary Input Voltage:5.5V; No. of Outputs:1; Output Current:500mA; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:6-DFN ;RoHS Compliant: Yes |
| LTC3542EDC#TRMPBF | 功能描述:IC REG BUCK SYNC ADJ 0.5A 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色產品:BD91x Series Step-Down Regulators 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:兩者兼有 輸出數(shù):2 輸出電壓:3.3V，0.8 V ~ 2.5 V 輸入電壓:4.5 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關:1MHz 電流 - 輸出:1.5A 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:VQFN020V4040 產品目錄頁面:1373 (CN2011-ZH PDF) 其它名稱:BD9152MUV-E2TR |
| LTC3542EDC#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 0.5A 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關:900kHz 電流 - 輸出:100mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型，TSOT-23-6 包裝:帶卷 (TR) 供應商設備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
發(fā)布緊急采購，3分鐘左右您將得到回復。