LDL1117S33R - STMicroelectronics

Manufacturer Part Number

LDL1117S33R

Manufacturer

STMicroelectronics

Introduction

The LDL1117S33R is a high-performance linear voltage regulator, offering low dropout capabilities for power management applications.

Product Features and Performance

Fixed 3.3V output voltage

Capable of delivering up to 1.2A of continuous output current

18V maximum input voltage

Low dropout voltage of 0.6V at 1.2A load

500 µA quiescent current

Excellent Power Supply Rejection Ratio (PSRR) of 87dB at 120Hz and 65dB up to 100kHz

SOT-223 package for surface mount technology applications

Product Advantages

High-efficiency due to low dropout performance

Stable output for a wide range of input voltages

Low power consumption with moderate quiescent current

High PSRR minimizing output noise and ripple

Robust protection features including overcurrent and overtemperature safeguards

Key Technical Parameters

Single LDO regulator configuration

Fixed output type

Input Voltage (Max): 18V

Output Voltage (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.6V @ 1.2A

Current - Output: 1.2A

Current - Quiescent (Iq): 500 µA

PSRR: 87dB ~ 65dB (120Hz ~ 100kHz)

Operating Temperature range: -40°C ~ 125°C

Quality and Safety Features

Overcurrent protection

Over-temperature protection

Under Voltage Lockout (UVLO)

Compatibility

Mounting Type: Surface Mount

Package/Case: TO-261-4, TO-261AA

Supplier Device Package: SOT-223

Application Areas

Consumer Electronics

Industrial Control Systems

Telecommunications Infrastructure

Computer and Office Equipments

Portable Devices

Product Lifecycle

The product status is active, not nearing discontinuation, and no immediate replacement or upgrade is suggested.

Several Key Reasons to Choose This Product

High reliability suitable for critical applications

Significant energy savings due to low dropout feature

Convenient surface mounting package compatible with modern PCB designs

Wide operating temperature range suiting harsh environmental conditions

Extensive protection features ensuring long term stability and safety of the application system

Proven product with robust design from a reputable manufacturer, STMicroelectronics