参数资料
型号: LT3483EDC#TR
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 0.23 A SWITCHING REGULATOR, PDSO8
封装: 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, DFN-8
文件页数: 8/12页
文件大小: 875K
代理商: LT3483EDC#TR
LT3483/LT3483A
5
3483fc
PIN FUNCTIONS
FB (Pin 1/Pin 3): Feedback. Place resistor to negative
output here. Set resistor value R1 = VOUT/10A.
GND (Pins 2, 3/Pin 2): Ground. For DFN package, tie both
pin 2 and pin 3 together to ground.
SW (Pin 4/Pin 1): Switch. Connect to external inductor
L1 and positive terminal of transfer capacitor.
VIN (Pin 5/Pin 6): Input Supply. Must be locally bypassed
with 1F or greater.
NC (Pin 6/NA): No Internal Connection.
D (Pin 7/Pin 5): Anode Terminal of Integrated Schottky
Diode. Connect to negative terminal of transfer capaci-
tor and external inductor L2 (flyback configuration) or
to cathode of external Schottky diode (inverting charge
pump configuration).
SHDN (Pin 8/Pin 4): Shutdown. Connect to GND to turn
device off. Connect to supply to turn device on.
Exposed Pad (Pin 9/NA): GND. The exposed pad should
be soldered to the PCB ground to achieve the rated thermal
performance.
(DFN/TSOT-23)
BLOCK DIAGRAM
+
+
6
3
1
2
5
A3
300ns
DELAY
1.250V
REFERENCE
S
Q1
20mV
(LT3483)
SW
D
L1B
L1A
CFLY
COUT
VOUT
0.1
GND
3483 BD
+
25mV
D1
Q
R
Q
A1
A2
125k
R1
R2
VOUT
D
D2
VIN
FB
OPTIONAL CHARGE PUMP CONFIGURATION.
L1B REPLACED WITH:
PIN NUMBERS CORRESPOND TO THE
6-PIN TSOT-23 PACKAGE
VOUT
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相关代理商/技术参数
参数描述
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