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参数资料
| 型号： | LTC3409EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.6A 8DFN |
| 标准包装： | 121 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.62 V ~ 5.5 V |
| 输入电压： | 1.6 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1.7MHz ~ 2.6MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 产品目录页面： | 1334 (CN2011-ZH PDF) |
LTC3409
PIN FUNCTIONS
V FB (Pin 1): Feedback Pin. Receives the feedback voltage
from an external resistive divider across the output.
GND (Pin 2): Ground Pin.
V IN (Pins 3, 4): Main Supply Pins. Must be closely de-
coupled to GND, Pin 2 and Pin 9, with a 4.7μF or greater
ceramic capacitor.
MODE (Pin 5): Mode Select Input. To select pulse skipping
mode, force this pin above 1.1V. Forcing this pin below
0.3V selects Burst Mode operation. Do not leave MODE
?oating.
SW (Pin 6): Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchronous
power MOSFET switches.
SYNC (Pin 8): External CLK Input/Fixed Switching Fre-
quency Selection. Forcing this pin above 1.1V for greater
than 30μs selects 2.6MHz switching frequency. Forcing
this pin below 0.3V for greater than 30μs selects 1.7MHz
switching frequency.
External clock input, 1MHz to 3MHz frequency range.
When the SYNC pin is clocked in this frequency range
the SYNC threshold is nominally 0.63V. To allow for good
noise immunity, SYNC signal should swing at least 0.3V
below and above this nominal value (0.33V to 0.93V). Do
not leave SYNC ?oating.
Exposed Pad (Pin 9): The Exposed Pad is ground. It must
be soldered to PCB ground to provide both electrical contact
and optimum thermal performance.
RUN (Pin 7): Run Control Input. Forcing this pin above 1.1V
enables the part. Forcing this pin below 0.3V shuts down
the device. In shutdown, all functions are disabled drawing
<1μA supply current. Do not leave RUN ?oating.
3409fc
7
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相关代理商/技术参数 |
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| LTC3409IDD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 0.6A 8DFN 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 |
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| LTC3410-1.875 | 制造商:LINER 制造商全称:Linear Technology 功能描述:2.25MHz, 300mA Synchronous Step-Down Regulator in SC70 |
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