参数资料
型号: LTC3542ES6#TRMPBF
厂商: Linear Technology
文件页数: 6/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ TSOT23-6
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 5.5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 2.25MHz
电流 - 输出: 500mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6 细型,TSOT-23-6
包装: 标准包装
供应商设备封装: TSOT-23-6
产品目录页面: 1335 (CN2011-ZH PDF)
其它名称: LTC3542ES6#TRMPBFDKR
LTC3542
PIN FUNCTIONS
(DFN/TSOT-23)
V FB (Pin 1/Pin 3): Output Feedback Pin. Receives the
feedback voltage from an external resistive divider across
the output. Nominal voltage for this pin is 0.6V.
V IN (Pin 2/Pin 1): Power Supply Pin. Must be closely
decoupled to GND.
GND (Pin 3/Pin 2): Ground Pin.
SW (Pin 4/Pin 6): Switch Node Connection to Inductor.
This pin connects to the drains of the internal main and
synchronous power MOSFET switches.
MODE/SYNC (Pin 5/Pin 5): Mode Selection and Oscillator
Synchronization Pin. This pin controls the operation of the
device. When tied to GND or V IN , Burst Mode operation or
BLOCK DIAGRAM
pulse skipping mode is selected, respectively. Do not ?oat
this pin. The oscillation frequency can be synchronized to
an external oscillator applied to this pin and pulse skipping
mode is automatically selected.
RUN (Pin 6/Pin 4): Converter Enable Pin. Forcing this pin
above 1.5V enables this part, while forcing it below 0.3V
causes the device to shut down. In shutdown, all functions
are disabled drawing <1μA supply current. This pin must
be driven; do not ?oat.
GND (Pin 7, DFN Package Only): Exposed Pad. The Ex-
posed Pad is ground. It must be soldered to PCB ground
to provide both electrical contact and optimum thermal
performance.
OSC
SLOPE COMPENSATION
+
V IN
I COMP
V FB
0.6V
EA
V B
+
BURST
LOGIC
ANTI-
SHOOT
THROUGH
SW
MODE
MODE/SYNC
MODE
V IN
DETECT
CLKIN
+
RUN
0.6V REF
SHUTDOWN
I RCMP
GND
3542 BD
3542fa
6
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