STMicroelectronics

LDR1833K7-R

LDR1833K7-R Description

The LDR1833K7-R is a dual linear voltage regulator designed by STMicroelectronics, featuring fixed output voltages of 1.8V and 3.3V. This regulator is designed for surface-mount applications and is housed in a 7-SPAK package. It offers a maximum input voltage of 15V and supports output currents of up to 500mA and 1A for each regulator. The LDR1833K7-R is designed to provide stable and reliable power regulation with a dropout voltage of 0.8V at 1A, ensuring efficient operation even under high load conditions.

LDR1833K7-R Features

• Output Type: Fixed
• Voltage - Input (Max): 15V
• Current - Output: 500mA, 1A
• Number of Regulators: 2
• Output Configuration: Positive
• Current - Supply (Max): 1.6 mA
• Voltage - Output (Min/Fixed): 1.8V, 3.3V
• Voltage Dropout (Max): 0.8V @ 1A
• Current - Quiescent (Iq): 50 µA
• PSRR: 70dB (120Hz)
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Short Circuit
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Product Status: Obsolete
• REACH Status: REACH Unaffected
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8542.39.0001

LDR1833K7-R Applications

The LDR1833K7-R is ideal for applications requiring dual voltage regulation with fixed output voltages. It is particularly suited for:

• Embedded Systems: Providing stable power supply for microcontrollers and other low-power devices.
• Consumer Electronics: Ensuring reliable power regulation in devices such as smartphones, tablets, and IoT devices.
• Industrial Control Systems: Offering robust power regulation in environments with high electrical noise.
• Telecommunications: Supplying power to various components in communication equipment.

Conclusion of LDR1833K7-R

The LDR1833K7-R is a versatile dual linear voltage regulator that offers significant advantages over similar models. Its fixed output voltages of 1.8V and 3.3V, combined with a low dropout voltage of 0.8V at 1A, make it highly efficient and suitable for a wide range of applications. The regulator's low quiescent current of 50 µA and high PSRR of 70dB at 120Hz ensure minimal power consumption and excellent noise rejection. Additionally, the LDR1833K7-R features over current, over temperature, and short circuit protection, enhancing its reliability and durability. Despite being marked as obsolete, the LDR1833K7-R remains a reliable choice for applications requiring dual voltage regulation with fixed output voltages.