参数资料
型号: LTC3560IS6#TRPBF
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: 2,500
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: 800mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-6 细型,TSOT-23-6
包装: 带卷 (TR)
供应商设备封装: TSOT-23-6
LTC3560
TYPICAL PERFORMANCE CHARACTERISTICS
(From Figure 1a Except for the Resistive Divider Resistor Values)
V OUT
200mV/DIV
AC COUPLED
I L
1A/DIV
I LOAD
1A/DIV
Load Step
V OUT
200mV/DIV
AC COUPLED
I L
1A/DIV
I LOAD
1A/DIV
Load Step
V OUT
200mV/DIV
AC COUPLED
I L
1A/DIV
I LOAD
1A/DIV
Load Step
V IN = 3.6V 20μs/DIV
V OUT = 1.8V
I LOAD = 0A TO 800mA
Burst Mode OPERATION
3560 G22
V IN = 3.6V 20μs/DIV
V OUT = 1.8V
I LOAD = 50mA TO 800mA
Burst Mode OPERATION
3560 G23
V IN = 3.6V 20μs/DIV
V OUT = 1.8V
I LOAD = 100mA TO 800mA
Burst Mode OPERATION
3560 G24
PIN FUNCTIONS
RUN (Pin 1): Run Control Input. Forcing this pin above 1.5V
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.
GND (Pin 2): Ground Pin.
SW (Pin 3): Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchronous
power MOSFET switches.
V IN (Pin 4): Main Supply Pin. Must be closely decoupled
to GND, Pin 2, with a 10μF or greater ceramic capacitor.
FUNCTIONAL DIAGRAM
SYNC/MODE
6
SLOPE
COMP
V FB (Pin 5): Feedback Pin. Receives the feedback voltage
from an external resistive divider across the output.
SYNC/MODE (Pin 6): External Clock Synchronization and
Mode Select Input. To synchronize with an external clock,
apply a clock with a frequency between 1MHz and 3MHz.
To select pulse-skipping mode, tie to V IN . Grounding this
pin selects Burst Mode operation. Do not leave this pin
?oating.
OSC
OSC
0.65V
V FB
5
FREQ
SHIFT
+
EN
SLEEP
4 V IN
0.6V
EA
0.4V
+
BURST
– +
I COMP
RUN
1
V IN
0.6V REF
S Q
R Q
RS LATCH
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
ANTI-
SHOOT-
THRU
3 SW
SHUTDOWN
I RCMP
2 GND
3560 BD
3560fb
6
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