- 您現在的位置：買賣IC網 > PDF目錄385507 > LTC3416 (Linear Technology Corporation) 4A, 4MHz, Monolithic Synchronous Step-Down Regulator with Tracking PDF資料下載
參數資料
| 型號： | LTC3416 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 4A, 4MHz, Monolithic Synchronous Step-Down Regulator with Tracking |
| 中文描述： | 第4A，4MHz的，單片同步降壓型穩(wěn)壓器與跟蹤 |
| 文件頁數： | 10/16頁 |
| 文件大?。?/td> | 238K |
| 代理商： | LTC3416 |
LTC3416
10
3416f
APPLICATIOU
W
U
U
coincidentally or ratiometrically track another output volt-
age as shown in Figure 3.
If the voltage on the TRACK pin is less than 0.8V, voltage
tracking is enabled. During voltage tracking, the output
voltage regulates to the tracking voltage through a resistor
divider network. The output voltage during tracking can be
calculated with the following equation:
V
V
R
R
OUT
TRACK
=
+
1
2
1
, V
TRACK
< 0.8V
Voltage tracking can be accomplished by sensing a frac-
tion of the output voltage from another regulator. This is
typically done by using a resistor divider to attenuate the
output voltage that is being tracked. Setting this attenua-
tion factor equal to the reciprocal of the gain factor
provided by the feedback resistors will force the regulator
outputs to be equal to each other during tracking. If
tracking is not desired, connect the TRACK pin to SV
IN
.
To implement the coincident tracking shown in Figure 3a,
connect an extra resistor divider to the output of V
OUT2
and
connect its midpoint to the TRACK pin of the LTC3416 as
shown in Figure 4. The ratio of this divider should be
selected the same as that of V
OUT1
’s resistor divider. To
implement the ratiometric sequencing in Figure 3b, no
extra resistor divider is necessary. Simply connect the
TRACK pin to V
FB(MASTER)
.
An alternative method of tracking is shown in Figure 5. For
the circuit of Figure 5, the following equations can be used
to determine the resistor values:
V
V
R
R
R
V
V
R
R
R
R
V
V
OUT
OUT
OUT
OUT
1
2
2
1
0 8
.
1
2
1
4
0 8
.
1
5
3
4
3
1
=
+
=
+
+
=
–
TIME
(3a) Coincident Tracking
V
OUT2
V
OUT1
O
TIME
3416 F03
(3b) Ratiometric Sequencing
V
OUT2
V
OUT1
O
Figure 3. Two Different Modes of Output Voltage Sequencing
R4
R2
R3
R1
(4a) Coincident Tracking Setup
TO
V
FB(MASTER)
PIN
TO
TRACK
PIN
V
OUT2
R2
R1
3416 F04
(4b) Ratiometric Setup
TO
V
FB(MASTER)
PIN
TO
TRACK
PIN
V
OUT2
Figure 4. Setup for Tracking and Ratiometric Sequencing
相關PDF資料 |
PDF描述 |
|---|---|
| LTC3416EFE | 3.3-V CMOS 18-Bit Universal Bus Driver with 3-State Outputs 56-SSOP -40 to 85 |
| LTC3426 | 1.2MHz Step-Up DC/DC Converter in SOT-23 |
| LTC3426ES6 | 1.2MHz Step-Up DC/DC Converter in SOT-23 |
| LTC3464 | 1.2MHz Step-Up DC/DC Converter in SOT-23 |
| LTC3445 | 12-Bit To 24-Bit Multiplexed D-Type Latch With 3-State Outputs 56-SSOP -40 to 85 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3416EFE | 功能描述:IC REG BUCK SYNC ADJ 4A 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數:1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:100mA 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:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3416EFE#PBF | 功能描述:IC REG BUCK SYNC ADJ 4A 20TSSOP 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:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 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:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC3416EFE#TR | 功能描述:IC REG BUCK SYNC ADJ 4A 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數:1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:100mA 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:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3416EFE#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 4A 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數:1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:100mA 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:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LTC3416EFEPBF | 制造商:Linear Technology 功能描述:LTC3416 adj 4A sync SD dc-dc converter |
發(fā)布緊急采購，3分鐘左右您將得到回復。