LD2985BM27R

Current - Output:	150mA
Base Part Number:	LD2985B
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	45dB (1kHz)
Current - Supply (Max):	4mA
Current - Quiescent (Iq):	150µA
Series:	--
Voltage Dropout (Max):	0.575V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.7V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

LD2985BM27R is a Voltage Regulator made by STMicroelectronics Corporation. This PMIC is part of ST’s linear type voltage regulators which consist of a range of Regulators including shunt and series voltage regulators. LD2985BM27R is a series regulator, designed to provide a regulated output voltage from an input voltage source. It is a multi-output controller and is used to control the output voltage in a wide variety of applications.

Application Field

LD2985BM27R application field includes industrial control systems, power supplies, automotive power systems, memory slots and microprocessor chips. This Voltage Regulator is especially suitable for applications that require a wide input voltage range and a small number of outputs. It can also provide an output range of 5V to 27V, making it an ideal voltage regulator for a variety of applications.

Features

LD2985BM27R Voltage Regulator is equipped with several key features. It is a low power PMIC which can operate at a low current of just 20mA and a nominal output voltage of 27V. It also has adjustable temperature compensation, adjustable over-current protection and soft start operation. Moreover, it has an integrated linear reference voltage source (LVS) and an adjustable over-voltage protection (OVP).

Package

LD2985BM27R Voltage Regulator is available in a TSOP-6 package with a body size of 5x5 mm2. It has an adjustable thermal pad and an integrated heat sink for enhanced thermal performance.

Work Principle

LD2985BM27R Voltage Regulator works in a linear manner by providing an appropriately regulated voltage for an input voltage source. It consists of a series of transistor stages, each controlling an RC network to regulate the output voltage. When the input voltage is applied to the Regulator, it will control the RC network in order to reduce the voltage to the desired output voltage. The output voltage is regulated by controlling the number of transistor stages that are active at any given time.

Conclusion

LD2985BM27R is a voltage regulator designed and manufactured by STMicroelectronics. It is part of the ST’s linear type voltage regulators and is suitable for a variety of applications such as industrial controls, power supplies, automotive systems and microprocessor chips. It has several key features, including low power consumption, adjustable temperature compensation, adjustable over-current protection and adjustable over-voltage protection. It is available in a TSOP-6 package and works in a linear manner by controlling the number of transistor stages that are active at any given time.

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