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參數(shù)資料
| 型號： | RT8005 |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | 1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter |
| 中文描述： | 第1A，2MHz的，高效率同步降壓PWM變換器 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 201K |
| 代理商： | RT8005 |
RT8005
3
DS8005-08 August 2007
www.richtek.com
Functional Pin Description
Pin No.
Function Block Diagram
Pin Name
Pin Function
1
LX
Internal Power MOSFET Switches Output. Connect this pin to the inductor.
2, 3
PVDD
Power Input Supply. Decouple this pin to PGND with a capacitor.
4
VDD
Signal Input Supply. Decouple this pin to GND with a capacitor. Normally VDD is
equal to PVDD.
Chip Enable (Active High). Logic low shuts down the converter. Floating this pin is
forbidden.
Switcher Feedback Voltage. This pin is the inverting input of the error amplifier.
FB senses the switcher output through an external resistor divider network. FB
regulation voltage is 0.5V.
5
EN
6
FB
7
COMP
Compensation Input. This pin is the output of the internal error amplifier. Connect
an external capacitor to compensate the regulator controlled loop.
Signal Ground. All small-signal components, compensation components and the
exposed pad on the bottom side of the IC should connect to this ground, which in
turn connects to PGND at one point. The exposed pad must be soldered to a
large PCB and connected to GND for maximum power dissipation.
Power Ground. Connect this pin close to the terminal of C
IN
and C
OUT
.
8,
Exposed Pad (11)
GND
9, 10
PGND
Oscillator
Slope
Compensation
Current Limit
Detector
Control
Logic
Zero
Detector
Driver
Current
Sense
V
REF
LX
EN
FB
COMP
PWM
Comparator
+
Error
Amplifier
+
-
Shutdown
Control
-
Over
Temperature
Detector
PVDD
PGND
VDD
GND
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| RT8005GQV | 1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter |
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| RT8008 | 1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT8005GQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter |
| RT8005PQV | 制造商:RICHTEK 功能描述:DC/DC (IC) |
| RT8008 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1.5MHz,600mA,High Efficiency PWM Step-Down DC/DC Converter |
| RT8008-10PB | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter |
| RT8008-10PJ5 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter |
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