What are the primary applications for this regulator?

It is commonly used in consumer and industrial equipment, switching power supply post-regulation, hard drive controllers, and battery chargers.

What protection features does the device include?

The device includes internal output current limiting, safe operating area compensation, and thermal shutdown protection.

What are the key specifications to consider?

Key specs include a 1.2 V maximum dropout voltage at 800 mA, 20 V maximum input voltage, and ±1.0% output voltage accuracy.

What is the sourcing status of this component?

The NCP1117ST33T3G is currently in active production with high availability in the market.

What is the pinout of NCP1117ST33T3G?

Use the NCP1117ST33T3G datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about NCP1117ST33T3G pinout to locate pins, power rails, and interface signals before layout.

NCP1117ST33T3G Datasheet, Specs, Alternatives & ECAD | onsemi

AI summary

The NCP1117ST33T3G is a reliable 3.3 V, 1.0 A fixed LDO regulator in a SOT-223 package, ideal for general-purpose power management.

Best for

Point-of-load regulation
Post-regulation for switching supplies

Avoid if

Input voltage exceeds 20 V
High ambient temperatures without adequate heatsinking

Check before use

Thermal dissipation requirements
Output capacitor ESR requirements

Key specifications

Output Voltage: 3.3 V
Output Current: 1.0 A
Dropout Voltage: 1.2 V
Input Voltage: 20 V

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: REACH Unaffected
MSL: 1 (Unlimited)
ECCN: EAR99
HTSUS: 8542.39.0001

Application

IndustrialConsumerPower

Datasheet

NCP1117-D.PDF

800 KB

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CAD Models

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Where to Buy

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Alternative components

Part	Details	Match
LDL1117S33RSTMicroelectronics	A high-performance alternative with better current and dropout, but with a lower maximum input voltage of 18V.	Needs validation

AMS1117-3.3Kexin	A widely-sourced functional alternative, but max input voltage is lower and must be verified from the specific datasheet.	Needs validation
A1117-3.3IDCHIP	A functional alternative in the same package, but with a lower maximum input voltage of 15V.	Needs validation
CJT1117B-3.3Jiangsu Changjing Electronics Technology Co., Ltd.	A functional alternative in the same package, but with a lower maximum input voltage of 15V.	Needs validation
ME6118A33B3GMICRONE	A functional alternative in the same package, but with a lower maximum input voltage of 18V.	Needs validation
BL8072CLTR33Shanghai Belling	Offers higher current (2A) but has a lower max input voltage and a restricted upper temperature limit of 85°C.	Needs validation

Design and risk insights

Questions & answers

It is a 1.0 A low-dropout (LDO) positive fixed voltage regulator that provides a stable 3.3 V output.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the NCP1117ST33T3G?+×

What are the primary applications for this regulator?+×

What protection features does the device include?+×

What are the key specifications to consider?+×

What is the sourcing status of this component?+×

What is the pinout of NCP1117ST33T3G?+×