Part Number: NX1117CADJZ
Marking Code : NCADJZ
Function: LDO Voltage Regulator, 20VIN ADJ 1A ( Output = 1.25 adjustable )
Package: SOT-223 Type
Manufacturer: NXP Semiconductors.
Image and Pinouts:
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
Other data sheets are available within the file:
7CE18Z, N7C25Z, NX1117C12Z, NX1117C18Z, NX1117C20Z