- 您现在的位置：买卖IC网 > PDF目录14400 > AP1506-12K5L-U (Diodes Inc)IC REG BUCK 12V 3A TO263-5 PDF资料下载
参数资料
| 型号： | AP1506-12K5L-U |
| 厂商： | Diodes Inc |
| 文件页数： | 7/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 12V 3A TO263-5 |
| 标准包装： | 50 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 12V |
| 输入电压： | 4.5 V ~ 22 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 150kHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 无 |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-6，D²Pak（5 引线+接片），TO-263BA |
| 包装： | 管件 |
| 供应商设备封装： | TO-263-5 |
AP1506
150KHz, 3A PWM BUCK DC/DC CONVERTER
Functional Description
Pin Functions
+V IN
This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor must be
presented at this pin to minimize voltage transients and to supply the switching currents needed by the regulator.
Ground
Circuit ground.
Output
Internal switch. The voltage at this pin switches between (+V IN – V SAT ) and approximately – 0.5V, with a duty cycle
of approximately V OUT / V IN . To minimize coupling to sensitive circuitry, the PC board copper area connected to
this pin should be kept to a minimum.
Feedback (FB)
Senses the regulated output voltage to complete the feedback loop.
ON/OFF (SD)
Allows the switching regulator circuit to be shutdown using logic level signals thus dropping the total input supply
current to approximately 150uA. Pulling this pin below a threshold voltage of approximately 1.3V turns the
regulator on, and pulling this pin above 1.3V (up to a maximum of 18V) shuts the regulator down. If this shutdown
feature is not needed, the ON / OFF pin can be wired to the ground pin.
Thermal Considerations
The AP1506 is available in two packages: a 5-pin TO220 and a 5-pin surface mount TO263.
The TO220 package needs a heat sink under most conditions. The size of the heat sink depends on the input
voltage, the output voltage, the load current and the ambient temperature. The AP1506 junction temperature rises
above ambient temperature for a 3A load and different input and output voltages. The data for these curves was
taken with the AP1506 (TO220 package) operating as a buck-switching regulator in an ambient temperature of
25 o C (still air). These temperature rise numbers are all approximate and there are many factors that can affect
these temperatures. Higher ambient temperatures require more heat sinking.
The TO263 surface mount package tab was designed to be soldering to the copper on a printed circuit board. The
copper and the board are the heat sink for this package and the other heat producing components, such as the
catch diode and inductor. The PC board copper area that the package is soldered to should be at least 0.8 in 2 ,
and ideally should have 2 or more square inches of 2 oz. Additional copper area improves the thermal
characteristics, but with copper areas greater than approximately 6 in 2 , only small improvements in heat
dissipation are realized. If further thermal improvements are needed, double sided, multi-layer PC board with large
copper areas and/or airflow will be recommended.
AP1506
Document number: DS31015 Rev. 7 - 2
7 of 14
June 2010
? Diodes Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| RBC50DCMD | CONN EDGECARD 100POS .100 WW |
| MAX861IUA+ | IC REG SWITCHD CAP DBL INV 8UMAX |
| ICL7660CUA+ | IC REG MULTI CONFIG 20MA 8UMAX |
| RCC50DCAN | CONN EDGECARD 100PS R/A .100 SLD |
| MAX861ISA+ | IC REG SWITCHD CAP DBL INV 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AP1506-12N | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:150KHz, 3A PWM Buck DC/DC Converter |
| AP1506-12NA | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:150KHz, 3A PWM Buck DC/DC Converter |
| AP1506-12NL | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:150KHz, 3A PWM Buck DC/DC Converter |
| AP1506-12NLA | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:150KHz, 3A PWM Buck DC/DC Converter |
| AP1506-12T5 | 制造商:ANACHIP 制造商全称:Anachip Corp 功能描述:150KHz, 3A PWM Buck DC/DC Converter |
发布紧急采购，3分钟左右您将得到回复。