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参数资料
| 型号： | LTC3545IUD-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.8A 16QFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 3 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.25 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 800mA |
| 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： | 16-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QFN-EP（3x3） |
LTC3545/LTC3545-1
PIN FUNCTIONS
SW1 (Pin 1): Switch Node Connection to Inductor for
Regulator 1. This pin connects to the internal power
MOSFET switches.
PGOOD1 (Pin 2): This open-drain output voltage is pulled
to a logic low when V FB1 is below 0.54V (V OUT1 is below
90% of regulated level).
RUN2 (Pin 3): Regulator 2 Enable Pin. Apply a voltage
greater than V RUN(HIGH) to enable this regulator.
PGOOD2 (Pin 4): This open-drain output voltage is pulled
to a logic low when V FB2 is below 0.54V (V OUT2 is below
90% of regulated level).
SW2 (Pin 5): Switch Node Connection to Inductor for
Regulator 2. This pin connects to the internal power
MOSFET switches.
PGND (Pin 6): Regulators 2 and 3 Power Path Return.
PV IN (Pin 7): Power Path Supply Pin for Regulators 2 and
3. This pin must be closely decoupled to PGND, with a
4.7μF or greater ceramic capacitor.
SW3 (Pin 8): Switch Node Connection to Inductor for
Regulator 3. This pin connects to the internal power
MOSFET switches.
SYNC/MODE (Pin 9, LTC3545 Only): Mode Select and
External Clock Input. When pulled low, part operates in
Burst Mode operation. When pulled high, part operates
in pulse skipping mode. When driven by a 1MHz to 3MHz
external clock, the part operates in pulse skipping mode
with a switching frequency equal to the external clock.
PGOOD3 (Pin 9, LTC3545-1 Only): This open-drain output
voltage is pulled to a logic low when V FB3 is below 0.54V
(V OUT3 is below 90% of regulated level). The LTC3545-1
operates in Burst Mode operation only.
RUN3 (Pin 10): Regulator 3 Enable Pin. Apply a voltage
greater than V RUN(HIGH) to enable this regulator.
V FB3 (Pin 11): Regulator 3 Feedback Pin. This pin receives
the feedback voltage from an external resistive divider
across the output.
V FB2 (Pin 12): Regulator 2 Feedback Pin. This pin receives
the feedback voltage from an external resistive divider
across the output.
V FB1 (Pin 13): Regulator 1 Feedback Pin. This pin receives
the feedback voltage from an external resistive divider
across the output.
RUN1 (Pin 14): Regulator 1 Enable Pin. Apply a voltage
greater than V RUN(HIGH) to enable this regulator.
V IN (Pin 15): Supply Pin for Internal Reference and Control
Circuitry. Power path supply for regulator 1.
GNDA (Pin 16): Ground Pin for Internal Reference and
Control Circuitry. Power path return for regulator 1.
Exposed Pad (Pin 17): GND. Must be soldered to the
PCB.
35451fb
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3545IUD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Triple 800mA Synchronous Step-Down Regulator-2.25MHz |
| LTC3545IUD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Triple 800mA Synchronous Step-Down Regulator-2.25MHz |
| LTC3546 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Synchronous, 3A/1A or 2A/2A Confi gurable Step-Down DC/DC Regulator |
| LTC3546EFE#PBF | 功能描述:IC REG BUCK SYNC ADJ DL 28TSSOP 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:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 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:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3546EFE#PBF | 制造商:Linear Technology 功能描述:IC DUAL SYNC STEP-DOWN DC/DC REG 28-TSSO |
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