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參數(shù)資料
| 型號： | LTC3633EUFD#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PQCC28 |
| 封裝： | 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28 |
| 文件頁數(shù)： | 28/28頁 |
| 文件大小： | 384K |
| 代理商： | LTC3633EUFD#TRPBF |
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LTC3633
9
3633f
PIN FUNCTIONS
V2P5 (Pin 18/Pin 21): 2.5V Regulator Output. Outputs a
regulated 2.5V supply voltage capable of supplying 10mA.
Bypass this pin with a minimum of 1μF low ESR ceramic
capacitor. Tie this pin to INTVCC when this output is not
being used in the application.
INTVCC (Pin 19/Pin 22): Internal 3.3V Regulator Output.
The internal power drivers and control circuits are powered
from this voltage. Decouple this pin to power ground with
a minimum of 1μF low ESR ceramic capacitor.
BOOST1 (Pin 20/Pin 23): Boosted Floating Driver Supply
for Channel 1. The (+) terminal of the bootstrap capacitor
connects to this pin while the (–) terminal connects to
the SW pin. The normal operation voltage swing of this
pin ranges from a diode voltage drop below INTVCC up
to VIN + INTVCC.
VIN1 (Pins 21,22/Pins 24, 25): Power Supply Input for
Channel 1. Input voltage to the on chip power MOSFETs
on channel 1. The internal LDO for INTVCC is powered off
of this pin.
SW1 (Pins 23,24/Pins 26, 27): Channel 1 Switch Node
Connection to External Inductor. Voltage swing of SW is
from a diode voltage drop below ground to VIN.
VON1 (Pin 25/Pin 28): On-Time Voltage Input for Chan-
nel 1. This pin sets the voltage trip point for the on-time
comparator. Tying this pin to the regulated output volt-
age makes the on-time proportional to VOUT1 when
VOUT1 < 6V. When VOUT1 > 6V, switching frequency may
become higher than the set frequency. The pin impedance
is nominally 180kΩ.
ITH1 (Pin 26/Pin 1): Channel 1 Error Amplier Output and
Switching Regulator Compensation Pin. Connect this pin
to appropriate external components to compensate the
regulator loop frequency response. Connect this pin to
INTVCC to use the default internal compensation.
TRACKSS1 (Pin 27/Pin 2): Output Tracking and Soft-Start
Input Pin for Channel 1. Forcing a voltage below 0.6V on
this pin bypasses the internal reference input to the error
amplier. The LTC3633 will servo the FB pin to the TRACK
voltage. Above 0.6V, the tracking function stops and the
internal reference resumes control of the error amplier.
An internal 1.4μA pull up current from INTVCC allows a
soft-start function to be implemented by connecting a
capacitor between this pin and SGND.
VFB1 (Pin 28/Pin 3): Channel 1 Output Feedback Voltage
Pin. Input to the error amplier that compares the feedback
voltage to the internal 0.6V reference voltage. Connect this
pin to a resistor divider network to program the desired
output voltage.
PGND (Exposed Pad Pin 29/Exposed Pad Pin 29): Power
Ground Pin. The (–) terminal of the input bypass capaci-
tor, CIN, and the (–) terminal of the output capacitor, COUT,
should be tied to this pin with a low impedance connec-
tion. This pin must be soldered to the PCB to provide low
impedance electrical contact to power ground and good
thermal contact to the PCB.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LTC3633IFE#PBF | 功能描述:IC REG BUCK ADJ 3A DL 28TSSOP 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 |
| LTC3633IFE#TRPBF | 功能描述:IC REG BUCK ADJ 3A DL 28TSSOP 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 |
| LTC3633IUFD#PBF | 功能描述:IC REG BUCK ADJ 3A DL 28QFN 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:- 產(chǎn)品培訓(xùn)模塊:MIC23xxx HyperLight Load™ Regulators 標(biāo)準(zhǔn)包裝:5,000 系列:HyperLight Load® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.8V 輸入電壓:2.7 V ~ 5.5 V PWM 型:混合物 頻率 - 開關(guān):4MHz 電流 - 輸出:2A 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤，8-MLF? 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-MLF?（2x2） 產(chǎn)品目錄頁面:1094 (CN2011-ZH PDF) 其它名稱:576-3303-2 |
| LTC3633IUFD#TRPBF | 功能描述:IC REG BUCK ADJ 3A DL 28QFN 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 |
| LTC3633IUFDPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Dual Step-Down 3.6-15V QFN28 |
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