參數(shù)資料
型號(hào)： LTC3416EFE
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 3.3-V CMOS 18-Bit Universal Bus Driver with 3-State Outputs 56-SSOP -40 to 85
中文描述： 8 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 4.4 MM, PLASTIC, TSSOP-20
文件頁(yè)數(shù)： 10/16頁(yè)
文件大?。?/td> 238K
代理商： LTC3416EFE
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
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參數(shù)描述
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(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)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(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 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(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)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(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 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(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
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