The LP2988IMM-2.8 is a low-dropout (LDO) voltage regulator from Texas Instruments that provides a fixed output voltage of 2.8 V. It is capable of delivering up to 200 mA of current to the load, making it ideal for a wide range of applications, including portable electronics, battery-powered devices, and industrial systems.

The LP2988IMM-2.8 features a very low dropout voltage, which means that it can maintain a regulated output voltage even when the input voltage drops to within a few millivolts of the output voltage. This makes it ideal for applications where the input voltage is not always stable or where the battery voltage is declining.

The LP2988IMM-2.8 also features a programmable power-on reset (POR) delay. This allows the user to specify the amount of time that the output voltage will be held at a low level after the input voltage is applied. This can be useful for preventing premature startup of the load device or for resetting the load device after a power failure.

The LP2988IMM-2.8 is available in a small 8-pin VSSOP package, making it ideal for space-constrained applications. It is also fully qualified for automotive applications, making it a good choice for automotive electronic systems.

Features

Ultra low-dropout voltage: 200 mV at 200 mA load current Programmable power-on reset (POR) delay: 1.2 ms to 10 s Very low quiescent current: 140 μA at no load Wide input voltage range: 2.5 V to 16 V Output current capability: 200 mA Small 8-pin VSSOP package Fully qualified for automotive applications Applications

Portable electronics Battery-powered devices Industrial systems Automotive electronic systems Medical devices Telecommunications equipment Consumer electronics Benefits

The LP2988IMM-2.8's ultra low-dropout voltage makes it ideal for applications where the input voltage is not always stable or where the battery voltage is declining. The programmable POR delay allows the user to customize the startup sequence of the load device. The LP2988IMM-2.8's very low quiescent current helps to extend the battery life of portable devices. The LP2988IMM-2.8 is available in a small 8-pin VSSOP package, making it ideal for space-constrained applications. The LP2988IMM-2.8 is fully qualified for automotive applications, making it a good choice for automotive electronic systems. How to use the LP2988IMM-2.8

The LP2988IMM-2.8 is very easy to use. Simply connect the input voltage to the VIN pin and the output voltage to the VOUT pin. The POR delay can be programmed by connecting a capacitor to the CT pin. The capacitor value determines the delay time according to the following equation:

T_D = 1.2 * C_T

where:

T_D is the POR delay time in seconds C_T is the capacitance of the timing capacitor in farads The LP2988IMM-2.8 is protected against short circuit and overcurrent conditions. It also has a thermal shutdown feature to protect the device from overheating.

Conclusion

The LP2988IMM-2.8 is a versatile and easy-to-use LDO voltage regulator that is ideal for a wide range of applications. It features a very low dropout voltage, programmable POR delay, very low quiescent current, and a small 8-pin VSSOP package. The LP2988IMM-2.8 is also fully qualified for automotive applications.