LM5010AMHX/NOPB TSSOP14 Original&New Integrated Ic Circuit Chips Components Electronics Pc
|Category||Integrated Circuits (ICs)
PMIC - Voltage Regulators - DC DC Switching Regulators
|Package||Tape & Reel (TR)
Cut Tape (CT)
|Number of Outputs||1|
|Voltage - Input (Min)||6V|
|Voltage - Input (Max)||75V|
|Voltage - Output (Min/Fixed)||2.5V|
|Voltage - Output (Max)||70V|
|Current - Output||1A|
|Frequency - Switching||100kHz ~ 1MHz|
|Operating Temperature||-40°C ~ 150°C (TJ)|
|Mounting Type||Surface Mount|
|Package / Case||14-TSSOP (0.173", 4.40mm Width) Exposed Pad|
|Supplier Device Package||14-HTSSOP|
|Base Product Number||LM5010|
1.Voltage stabilized power supply.
Voltage stabilized power supply (stabilized voltage supply) is an electronic device that can provide stable AC or DC power to the load, including AC voltage stabilized power supply and DC voltage stabilized power supply in two categories.
2. The need to use regulated power supplies.
With the rapid progress of society, electricity-using equipment is increasing day by day. However, the aging and lagging development of power transmission and distribution facilities, as well as poor design and inadequate power supply cause the end-user voltage to be too low, while the line users are often high voltage. For power-using equipment, especially high-tech and precision equipment with strict voltage requirements, it is as if they are not insured.
Unstable voltages can cause fatal injuries or malfunctions to equipment, affecting production, causing delays in delivery, unstable quality, and many other losses. At the same time, it accelerates the aging of the equipment, affects its service life, and even burns up the accessories, so that the owner faces the trouble of needing repairs or having to renew the equipment in the short term, which wastes resources; in serious cases, safety accidents even occur, causing incalculable losses.
3. DC regulated power supply.
Also known as DC voltage regulator. Its supply voltage is mostly AC voltage, when the voltage of the AC supply voltage or output load resistance changes, the regulator's direct output voltage can be maintained stable. The parameters of a voltage regulator are voltage stability, ripple coefficient, and response speed. The former indicates the effect of a change in input voltage on the output voltage. The ripple coefficient indicates the size of the AC component of the output voltage under rated operating conditions; the latter indicates the time required for the voltage to return to its normal value when the input voltage or load changes dramatically. DC voltage regulator is divided into two categories: continuous conductive and switching type. The former by the frequency transformer to single-phase or three-phase AC voltage to the appropriate value, then rectified, filtered, to obtain unstable DC power, and then by the voltage regulator circuit to get a stable voltage (or current). This kind of power supply line is simple, ripple is small, mutual interference is small, but the volume is large, consumables are many, and efficiency is low (often less than 40% to 60%). The latter regulates the output voltage by changing the on/off time ratio of the adjusting element (or switch) to achieve voltage regulation. This type of power supply consumes little power and has an efficiency of around 85%.
4.DC voltage regulator application.
DC voltage regulator is widely used in national defense, scientific research, universities and colleges, laboratories, industrial and mining enterprises, electrolysis, electroplating, charging equipment, and other DC power supply.
5.Description for the LM5010A
The LM5010Ax step-down switching regulator is an enhanced version of the LM5010 with the input operating range extended to 6-V minimum. The LM5010Ax features all the functions needed to implement a low-cost, efficient, buck regulator capable of supplying in excess of 1-A load current. This high-voltage regulator integrates an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The constant ON-time regulation scheme requires no loop compensation resulting in fast load transient response and simplified circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the ON-time. The valley current limit detection is set at 1.25 A. Additional features include: VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.