参数资料
| 型号： | ADP3050AR-3.3 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 3.3V 1A 8SOIC |
| 标准包装： | 98 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 3.6 V ~ 30 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SO |
| 配用： | ADP3050-EVAL-ND - BOARD EVAL FOR ADP3050 |
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADP3050
SWITCH 1
8
IN
BOOST 2
BIAS 3
ADP3050
TOP VIEW
7
6
GND
SD
FB 4 (Not to Scale)
5
COMP
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
SWITCH
BOOST
BIAS
FB
COMP
SD
GND
IN
Description
Switch Node. This pin is the emitter of the internal NPN power switch. The voltage at this pin switches between
V IN and approximately ?0.5 V.
Boost Pin. This pin is used to provide a boosted voltage (higher than V IN ) for the drive stage of the NPN power
switch. With the higher drive voltage, the power switch can be saturated, greatly reducing the switch power
losses.
Bias Input Pin. Connect this pin to the regulated output voltage to maximize system efficiency. When this pin is
above 2.7 V, most of the ADP3050 operating current is taken from the output instead of the input supply. Leave
unconnected if not used.
Feedback Pin. This feedback pin senses the regulated output voltage. Connect this pin directly to the output
(fixed output versions).
Compensation Node. This pin is used to compensate the regulator with an external resistor and capacitor. This
pin is also used to override the control loop. However, the voltage on this pin should not exceed 2 V, because
the pin is internally clamped to ensure a fast transient response. Use a pull-up resistor if this pin is to be pulled
higher than 2 V.
Shutdown Pin. Use this pin to turn the device on and off. If this feature is not needed, tie this pin directly to IN.
Ground Pin. Connect this pin to local ground plane.
Power Input. Connect this pin to the input supply voltage. An input bypass capacitor must be placed close to
this pin to ensure proper regulator operation.
Rev. C | Page 5 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP3050AR-5 | 制造商:Analog Devices 功能描述:Conv DC-DC Single Step Down 3.6V to 30V 8-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:HIGH VOLTAGE STEP DOWN SWITCHING REG. - Bulk 制造商:Analog Devices 功能描述:IC SWITCHING REGULATOR |
| ADP3050AR-5-REEL | 制造商:Analog Devices 功能描述:Conv DC-DC Single Step Down 3.6V to 30V 8-Pin SOIC N T/R |
| ADP3050AR-5-REEL7 | 制造商:Analog Devices 功能描述:Conv DC-DC Single Step Down 3.6V to 30V 8-Pin SOIC N T/R 制造商:Analog Devices 功能描述:ANAADP3050AR-5-REEL7 HI VOLT SWCH REG |
| ADP3050AR-REEL | 制造商:Analog Devices 功能描述:Conv DC-DC Single Step Down 3.6V to 30V 8-Pin SOIC N T/R |
| ADP3050AR-REEL7 | 制造商:Analog Devices 功能描述:Conv DC-DC Single Step Down 3.6V to 30V 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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