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參數資料
| 型號： | LT3571IUD#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.57 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 3 X 3 MM, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220WEED-2, QFN-16 |
| 文件頁數： | 13/16頁 |
| 文件大?。?/td> | 215K |
| 代理商： | LT3571IUD#PBF |
LT3571
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PIN FUNCTIONS
NC (Pin 1): No Connect.
APD (Pin 2): APD Cathode Pin. Connect APD cathode to
this pin.
MONIN (Pin 3): Current Monitor Power Supply Pin. An
external lowpass lter can be included here to further
reduce supply voltage ripple. This pin also serves as the
inverting input of the current sense amplier. Put a sense
resistor between the MONIN pin and the VOUT pin to set
the boost converter output current limit as 200mV/RSENSE.
Connect the MONIN pin directly to the VOUT pin if the
output current limit function is not used.
VOUT (Pin 4): Boost Output Pin. Put a capacitor between
this pin and GND plane. Minimize the length of the trace
to the capacitor. Also serves as the noninverting input of
the current sense amplier.
SW (Pin 5, 6): Switch Pin. Minimize the trace length on
this pin to reduce EMI.
GND (Pin 7, 10): Ground. Pins connected internally. For
best performance, connect both pins to board ground.
SYNC (Pin 8): Frequency Synchronization Pin. Connect an
external clock signal here. RT resistor should be chosen
to program a switching frequency 20% slower than the
SYNC pulse frequency. Synchronization (switch turn-on)
occurs a xed delay after the rising edge of SYNC. Tie the
SYNC pin to ground if this feature is not used.
RT (Pin 9): Switching Frequency Pin. Set switching fre-
quency using a resistor to GND (see Typical Performance
Characteristics for values). For SYNC function, choose
the resistor to program a frequency 20% slower than the
SYNC pulse frequency. Do not leave this pin open.
VIN (Pin 11): Input Supply Pin. This pin must be locally
bypassed.
SHDN (Pin 12): Shutdown Pin. Tie to 1.5V or higher to
enable device; 0.4V or less to disable device. Also functions
as soft-start. Use RC lter as shown in Figure 1.
VREF (Pin 13): Reference Output Pin. This pin can supply
up to 100μA. Do not over drive this pin. Bypass with a
10nF or larger capacitor.
CTRL (Pin 14): Internal Reference Override Pin. The CTRL
pin allows the FB voltage to be externally adjusted between
0V and 1V to adjust the output voltage. Tie this pin higher
than 1.2V to use the internal reference of 1V.
FB (Pin 15): Feedback Pin. Connect to output resistor
divider tap.
MON (Pin 16): Current Monitor Output Pin. Sources a
current equal to 20% of the APD current and converts to
a reference voltage through an external resistor.
Exposed Pad (Pin 17): Ground. The Exposed Pad must
be soldered to the PCB.
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| LT3572 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Full-Bridge Piezo Driver with 900mA Boost Converter |
| LT3572EUF#PBF | 功能描述:IC DRIVER PIEZO DUAL 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:步進電機驅動器，1-2 相，2 相 評估套件:- 輸出數:1 電流 - 輸出:800mA 電壓 - 負載:10 V ~ 28 V 電源電壓:4.75 V ~ 5.25 V 工作溫度:-20°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:28-SOP + 2 翼片裸露焊盤 供應商設備封裝:28-HSOPHC（15.2x7.9） 包裝:剪切帶 (CT) 其它名稱:869-1268-1 |
| LT3572EUF#TRPBF | 功能描述:IC DRIVER PIEZO DL 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 產品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標準包裝:1 系列:- 應用:DC 電機控制器，無刷（BLDC），3 相 評估套件:可供 輸出數:1 電流 - 輸出:100mA 電壓 - 負載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°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-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT |
| LT3572EUF-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Full-Bridge Piezo Driver with 900mA Boost Converter |
| LT3572EUF-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Full-Bridge Piezo Driver with 900mA Boost Converter |
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