LM21215MH/NOPB

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	LM21215
Supplier Device Package:	20-HTSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	500kHz
Current - Output:	15A
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.95V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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LM21215MH/NOPB Introduction

The LM21215MH/NOPB is a high-efficiency, low-noise 3A step-down switching regulator. This device is optimized for supplying energy-sensitive, high-end systems such as USB Type-C, tablets, and phones. It has a wide input voltage range, 4.5V to 22V.The LM21215MH/NOPB is designed to make power system design easier regardless of the application. It has a wide input voltage range, high efficiency, low noise, and a wide range of features to make it easier to design a power system.

LM21215MH/NOPB Application Fields

The LM21215MH/NOPB is designed for use in a wide range of applications. This regulator can be applied in:

• Mobile phones
• Tablets
• USB Type-C devices
• Supplying energy-sensitive high-end systems
• High efficiency applications
• Low noise applications
• Multi-voltage systems

The LM21215MH/NOPB can be applied in many other applications. The device\'s flexibility, combined with its wide input voltage range, makes it ideal for many different types of power systems.

LM21215MH/NOPB Working Principle

The LM21215MH/NOPB is a step-down DC-DC switching regulator. The device uses Pulse Width Modulation (PWM) and average current mode control to regulate the output voltage. When the input voltage is above the required output voltage, the device operates in buck or step-down mode. When the input voltage is below the required output voltage, the device operates in boost or step-up mode. The device\'s output voltage can be adjusted via an external resistor divider.In buck mode, the device switches ON the output stage FETs, and current flows from the input voltage to the output voltage. The PWM signal is used to control the on time and off time of the FETs. At the same time, the average current mode control loop senses the output voltage, and adjusts the on time of the FETs to keep the output voltage regulated.In boost mode, the device pulses the output FETs, and transfers energy from the output to the input. The pulse width is controlled by the PWM and average current mode control loop in the same way as in buck mode.

Conclusion

The LM21215MH/NOPB is a high-efficiency, low-noise 3A step-down switching regulator. It is optimized for supplying energy-sensitive, high-end systems such as USB Type-C, tablets and phones. The device has a wide input voltage range and is designed to make power system design easier. The regulator can be applied in a range of applications and is ideal for high efficiency, low noise and multi-voltage power systems. It can operate in both buck and boost mode, and its output voltage can be adjusted via an external resistor divider.

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