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参数资料
| 型号： | LT3571EUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.47A 16QFN |
| 产品培训模块： | APD Biasing |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 最高 75V |
| 输入电压： | 2.7 V ~ 20 V |
| PWM 型： | 电流/电压模式 |
| 频率 - 开关： | 250kHz ~ 2MHz |
| 电流 - 输出： | 470mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QFN-EP（3x3） |
LT3571
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 ampli?er. Put a sense
resistor between the MONIN pin and the V OUT pin to set
the boost converter output current limit as 200mV/R SENSE .
Connect the MONIN pin directly to the V OUT pin if the
output current limit function is not used.
V OUT (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 ampli?er.
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. R T 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.
R T (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.
V IN (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.
V REF (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.
3571fa
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| LT3571IUD#PBF | 功能描述:IC REG BOOST ADJ 0.47A 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3571IUD#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER CURRENT MODE 制造商:Linear Technology 功能描述:DC-DC CONVERTER, CURRENT MODE, 2MHZ, QFN |
| LT3571IUD#TRPBF | 功能描述:IC REG BOOST ADJ 0.47A 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3572 | 制造商:LINER 制造商全称: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 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:步进电机驱动器，1-2 相，2 相 评估套件:- 输出数:1 电流 - 输出:800mA 电压 - 负载:10 V ~ 28 V 电源电压:4.75 V ~ 5.25 V 工作温度:-20°C ~ 90°C 安装类型:表面贴装 封装/外壳:28-SOP + 2 翼片裸露焊盘 供应商设备封装:28-HSOPHC（15.2x7.9） 包装:剪切带 (CT) 其它名称:869-1268-1 |
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