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參數(shù)資料
| 型號(hào)： | LTC3406ES5-1.2#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | PLASTIC, SOT-23, 5 PIN |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 228K |
| 代理商： | LTC3406ES5-1.2#PBF |
5
LTC3406-1.2
340612fa
UU
U
PI FU CTIO S
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 <1
A supply current. Do not leave RUN floating.
GND (Pin 2): Ground Pin.
SW (Pin 3): Switch Node Connection to Inductor. This pin
connects to the drains of the internal main and synchro-
nous power MOSFET switches.
VIN (Pin 4): Main Supply Pin. Must be closely decoupled
to GND, Pin 2, with a 2.2
F or greater ceramic capacitor.
VOUT (Pin 5): Output Voltage Feedback Pin. An internal
resistive divider divides the output voltage down for com-
parison to the internal reference voltage.
FU CTIO AL DIAGRA
U
W
+
–
+
–
EA
+
–
IRCMP
+
–
ICOMP
5
1
RUN
OSC
SLOPE
COMP
OSC
FREQ
SHIFT
0.8V
0.65V
FB
0.8V +
VOVL
60k
120k
0.8V REF
SHUTDOWN
VIN
VOUT
VIN
S
R
RS LATCH
OV
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
ANTI-
SHOOT-
THRU
Q
5
4
SW
3
GND
3406B12 BD
2
+
–
OVDET
VOUT
100mV/DIV
AC COUPLED
ILOAD
500mA/DIV
IL
500mA/DIV
20
s/DIV
VIN = 3.6V
ILOAD = 100mA TO 600mA
340612 G16
VOUT
100mV/DIV
AC COUPLED
IL
500mA/DIV
ILOAD
500mA/DIV
20
s/DIV
VIN = 3.6V
ILOAD = 200mA TO 600mA
340612 G17
Load Step
TYPICAL PERFOR A CE CHARACTERISTICS
UW
(From Figure 1a Except for the Resistive Divider Resistor Values)
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