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NX1117CADJZ Datasheet PDF – LDO Voltage Regulator

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Part Number: NX1117CADJZ

Marking Code : NCADJZ

Function: LDO Voltage Regulator,  20VIN ADJ 1A ( Output = 1.25 adjustable )

Package: SOT-223 Type

Manufacturer: NXP Semiconductors.

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NX1117CADJZ datasheet

Description

The NX1117CADJZ, NX1117C / NX1117CE are two series of low-dropout positive voltage regulators with an output current capability of 1 A. The two series consist of 18 fixed output voltage versions and two adjustable output voltage versions. The regulators feature output current limiting, Safe Operating Area (SOA) control, and thermal shutdown.

Features

  • Output current up to 1A
  • Adjustable output voltage via external resistor divider
  • Wide input voltage range: up to 20V
  • Low dropout voltage (typically ~1.1V at 1A)
  • High output voltage accuracy: ±1% / ±1.25%
  • No minimum load requirement (fixed versions)
  • Built-in thermal shutdown protection
  • Output current limiting
  • Safe Operating Area (SOA) protection
  • Wide operating temperature range

Design Notes

  • Ensure input voltage exceeds output voltage by at least the dropout voltage (~1.1V)
  • Output capacitor ESR is important for stability—follow datasheet recommendations
  • Thermal dissipation can be significant: P = (VIN − VOUT) × IOUT
  • Use adequate copper area or heatsink for high current applications
  • Suitable as a post-regulator after switching converters to reduce ripple/noise
  • Avoid excessive input voltage to minimize power loss

Advantages

  • Simple design with minimal external components
  • Stable and low-noise output
  • Flexible adjustable output
  • Integrated protection features improve reliability

Typical Applications

  • Post-regulation for DC-DC converters
  • Point-of-load regulation in digital systems
  • Battery-powered devices
  • USB-powered circuits
  • Consumer electronics and industrial control systems
  • Hard disk drive and embedded controller supplies

Alternative / Equivalent Products

  • LM1117 – Industry-standard LDO regulator
  • AMS1117 – Widely used low-cost alternative
  • LD1117 – STMicroelectronics LDO
  • TLV1117 – TI improved LDO version
  • AP1117 – Diodes Inc. regulator

 

NX1117CADJZ Datasheet PDF Download


NX1117CADJZ pdf

Other data sheets are available within the file:

7CE18Z, N7C25Z, NX1117C12Z, NX1117C18Z, NX1117C20Z

50RIA120S90 Datasheet PDF – 1200V, 50A, SCR, Thyristor

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Part Number: 50RIA120S90

Function: 1200V, 50A, Medium Power Phase Control Thyristor

Package: TO-65 ( TO-208AC )

Manufacturer: Vishay Semiconductors

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50RIA120S90 datasheet

Description

The 50RIA120S90 is a high-power thyristor (SCR) designed for demanding power control applications, featuring a 50A average current rating and 1200V blocking voltage. It offers robust surge capability and excellent dynamic performance, making it suitable for phase-controlled rectification and industrial power regulation systems. The device is typically housed in a stud-mounted package, allowing efficient thermal management and mechanical stability.

Features

  • Excellent dynamic characteristics for switching performance
  • High dV/dt capability (up to 1000 V/µs option)
  • Superior surge current handling capability
  • Stud-type package for efficient heat dissipation
  • Available in metric thread versions
  • Suitable for high-reliability industrial applications

Absolute Maximum Ratings

Parameter Symbol Value Unit
Repetitive Peak Off-State Voltage VDRM, VRRM 1200 V
Average On-State Current IT(AV) 50 A
Surge Current (Non-repetitive) ITSM ~600 A
Critical Rate of Rise of Off-State Voltage dV/dt 1000 V/µs
Operating Junction Temperature TJ -40 ~ +125 °C

Typical Circuit Usage

  • Phase-controlled rectifiers (AC-DC conversion)
  • AC power control (light dimmers, heaters)
  • Motor speed control circuits
  • Battery charging systems
  • Soft-start circuits for high-power loads

How to Choose This Part

  • Select based on required current (≤50A) and voltage (≤1200V)
  • Evaluate surge current capability for inductive loads
  • Consider switching speed and dV/dt requirements
  • Ensure compatibility with gate drive circuitry
  • Compare with IGBT or MOSFET solutions for high-frequency applications

Applications

  • Phase control converters
  • Lighting control circuits
  • Battery chargers
  • Regulated power supplies
  • Temperature and motor speed control systems

Alternative / Equivalent Products

  • TYN1225 – 1200V thyristor (lower current)
  • SKT50 series – SEMIKRON stud thyristors
  • 2N6509 – General-purpose SCR
  • BT152 – Medium power thyristor
  • IRKT56 – Dual thyristor module

Other data sheets are available within the file:

50RIA100S90M, 50RIA120S90, 50RIA120S90M, 50RIA20S90M, 50RIA40S90M

 

50RIA120S90 Datasheet PDF Download


50RIA120S90 pdf