ChongMing Group (HK) Int'l Co., Ltd
| Payment Terms | T/T, Western Union, Paypal |
| Supply Ability | 7300pcs |
| Delivery Time | 1 day |
| Packaging Details | Please contact me for details |
| Description | Linear Voltage Regulator IC Positive Fixed 1 Output 650mA PG-TO252-5-11 |
| Junction temperature | 150 °C |
| Storage temperature | – 50 to 150 °C |
| Output voltage | 4.90 to 5.10 V |
| Output current | 850 mA |
| Drop voltage | 350 mV |
| Input voltage | 6 to 42 V |
| Brand Name | |
| Model Number | TLE4270D |
| Certification | new & original |
| Place of Origin | original factory |
View Detail Information
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Product Specification
| Payment Terms | T/T, Western Union, Paypal | Supply Ability | 7300pcs |
| Delivery Time | 1 day | Packaging Details | Please contact me for details |
| Description | Linear Voltage Regulator IC Positive Fixed 1 Output 650mA PG-TO252-5-11 | Junction temperature | 150 °C |
| Storage temperature | – 50 to 150 °C | Output voltage | 4.90 to 5.10 V |
| Output current | 850 mA | Drop voltage | 350 mV |
| Input voltage | 6 to 42 V | Brand Name | |
| Model Number | TLE4270D | Certification | new & original |
| Place of Origin | original factory | ||
| High Light | electronic integrated circuit ，linear integrated circuits | ||
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5-V Low-Drop Fixed Voltage Regulator TLE4270
Features
• Output voltage tolerance ≤ ± 2 %
• Low-drop voltage
• Integrated overtemperature protection
• Reverse polarity protection
• Input voltage up to 42 V
• Overvoltage protection up to 65 V (≤ 400 ms)
• Short-circuit proof
• Suitable for use in automotive electronics
• Wide temperature range
• Adjustable reset time
• ESD protection > 4000 V
Functional Description
This device is a 5-V low-drop fixed-voltage regulator. The maximum input voltage is 42 V (65 V, ≤ 400 ms). Up to an input voltage of 26 V and for an output current up to 550 mA it regulates the output voltage within a 2 % accuracy. The short circuit protection limits the output current of more than 650 mA. The device incorporates overvoltage protection and temperature protection that disables the circuit at unpermissibly high temperatures.
Application Description
The IC regulates an input voltage in the range of 5.5 V < VI < 36 V to VQnom = 5.0 V. Up to 26 V it produces a regulated output current of more than 550 mA. Above 26 V the save-operating-area protection allows operation up to 36 V with a regulated output current of more than 300 mA. Overvoltage protection limits operation at 42 V. The overvoltage protection hysteresis restores operation if the input voltage has dropped below 36 V. A reset signal is generated for an output voltage of VQ < 4.5 V. The delay for power-on reset can be set externally with a capacitor.
Design Notes for External Components
An input capacitor CI is necessary for compensation of line influences. The resonant circuit consisting of lead inductance and input capacitance can be damped by a resistor of approx. 1 Ω in series with CI. An output capacitor CQ is necessary for the stability of the regulating circuit. Stability is guaranteed at values of CQ ≥ 22 µF and an ESR of < 3 Ω.
Circuit Description
The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of a series transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element.
If the output voltage decreases below 4.5 V, an external capacitor CD on pin 4 (D) will be discharged by the reset generator. If the voltage on this capacitor drops below VDRL, a reset signal is generated on pin 2 (RO), i.e. reset output is set low. If the output voltage rises above 4.5 V, CD will be charged with constant current. After the power-on-reset time the voltage on the capacitor reaches VDU and the reset output will be set high again. The value of the power-on-reset time can be set within a wide range depending of the capacitance of CD.
The IC also incorporates a number of internal circuits for protection against:
• Overload
• Overvoltage
• Overtemperature
• Reverse polarity
Pin Configuration (top view)
Block Diagram
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2008
Total Annual:
5000000-7000000
Employee Number:
80~100
Ecer Certification：
Active Member
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron... CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron...
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