NJM78M05DL1A-TE1 vs NJM2881F18-TE1
| Part Number |
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| Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear |
| Manufacturer | NJR Corporation/NJRC | NJR Corporation/NJRC |
| Description | IC REG LINEAR 5V 500MA TO252-3 | IC REG LINEAR 1.8V 300MA SOT23-5 |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | TO-252-3, DPak (2 Leads + Tab), SC-63 | SC-74A, SOT-753 |
| Supplier Device Package | TO-252-3 | SOT-23-5 (MTP5) |
| Output Type | Fixed | Fixed |
| Voltage - Output (Min/Fixed) | 5V | 1.8V |
| Voltage - Output (Max) | - | - |
| Current - Output | 500mA | 300mA |
| Output Configuration | Positive | Positive |
| Control Features | - | Enable |
| Voltage - Input (Max) | 35V | 14V |
| Number of Regulators | 1 | 1 |
| Voltage Dropout (Max) | - | - |
| Current - Quiescent (Iq) | 6 mA | 180 µA |
| Current - Supply (Max) | - | - |
| PSRR | 80dB (120Hz) | 80dB (1kHz) |
| Protection Features | Over Temperature, Short Circuit | Over Temperature, Short Circuit |
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1. Do linear regulators need capacitors?
Linear regulators usually require capacitors.
The working principle and design requirements of linear regulators determine that they usually require capacitors to ensure stable operation. These capacitors are mainly used to filter and stabilize the output voltage, help reduce output ripple and noise, and thus improve the stability and reliability of the power supply.
Specifically:
1. Input and output capacitors: Linear regulators usually require one or more input capacitors and one output capacitor. These capacitors help smooth the input and output voltages, reduce voltage fluctuations, and thus provide a stable output voltage.
2. Power supply rejection capability: The power supply rejection capability of a linear regulator is an important indicator, which is related to whether it can effectively suppress unwanted signals and avoid interference with the output voltage. If the power supply rejection capability is poor, unnecessary signals may be left behind, affecting the purity of -
2. How to choose a linear regulator?
1. Switching regulator: A switching regulator uses an output stage that repeatedly switches between "on" and "off" states to generate an output voltage together with an energy storage component. Its adjustment is achieved by adjusting the switching timing based on the feedback sample of the output voltage. In a fixed-frequency regulator, the switching timing is adjusted by adjusting the pulse width of the switching voltage, which is called PWM control.
2. Parameter regulator: LDO is a linear regulator. Linear regulators use transistors or FETs operating in their linear region to subtract excess voltage from the applied input voltage to produce a regulated output voltage. This transistor allows saturation, so the regulator can have a very low dropout voltage, usually around 200mV.
3. Regulators for laser cutting machines: According to the use requirements of high-power laser cutting machines and the current power supply situation in my country, regulators that meet -
3. What are the alternatives to linear regulators?
Alternatives to linear regulators include Semiconductor HT7144S, K7805-2000R3, TPS70933DBVR, CLR6212, XC6220B331MR-G, LR7550-M, SGM2054XTD10G/TR, ME6213C33M5G, RS3236-3.3YF5, KL2036-2.2V, etc. These alternatives cover different package forms (such as SOT-23, SOP8, etc.) and output voltage and current specifications to meet the needs of different applications. For example, the HT7144S is a three-terminal linear regulator, while the TPS70933DBVR is an LDO (low dropout linear regulator) with lower output voltage and current specifications. CLR6212 and XC6220B331MR-G provide higher output current capabilities and are suitable for applications that require larger current outputs. LR7550-M and SGM2054XTD10G/TR provide specific voltage and current specifications to meet the needs of specific fields. ME6213C33M5G and RS3236-3.3YF5 are regulators with specific packaging forms, suitable for space-constrained application scenarios. KL2036-2.2V is a linear regulator with a lower output voltage, su
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4. What is the difference between a linear regulator and a resistor?
Linear regulators and resistors have significant differences in function, working principle and application scenarios.
Function and working principle:
A linear regulator is an electronic device that achieves a stable voltage output by adjusting linear elements (such as resistors, transistors, etc.) in the circuit. It uses the negative feedback principle. When the input voltage changes, the regulator senses this change and adjusts the parameters of the circuit elements (such as the resistance value or the conduction state of the transistor) accordingly to keep the output voltage stable within the required range. Linear regulators can provide lower output noise and fluctuations, and have better responsiveness to load changes.
Resistors are a basic electronic component used to limit current and divide voltage. It works by hindering the flow of current, has a fixed resistance value, and does not have the function of adjusting the output voltage.
Application scenarios:
Linear regulator
