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NCP511SN33T1G

Name: NCP511SN33T1G
Rating: 4.7 (12 reviews)

IC REG LINEAR 3.3V 150MA 5TSOP

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Mfr。パート #NCP511SN33T1G
パッケージ SOT23-5
データシート
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仕様

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
OutputConfiguration	Positive
OutputType	Fixed
NumberofRegulators	1
Voltage-Input(Max)	6V
Voltage-Output(Min/Fixed)	3.3V
VoltageDropout(Max)	0.2V @ 100mA
Current-Output	150mA
Current-Quiescent(Iq)	40 µA
Current-Supply(Max)	100 µA
PSRR	50dB (1kHz)
ControlFeatures	Enable
ProtectionFeatures	Over Current, Over Temperature
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	SOT-23-5 Thin, TSOT-23-5

概要

Description

NCP511SN33T1G is ON Semiconductor’s fixed-threshold 3.3 V microcontroller supervisor (voltage detector). It monitors the supply (Vcc) and generates a reset signal to ensure a MCU starts in a known state and remains reset during brownouts or power-up/down.
Key points
- Fixed 3.3 V threshold; single-supply operation
- Reset output is active-low (RESET#) and typically drives the MCU reset pin directly
- Fast response with built-in power-on reset timing
- Very low quiescent current; packaged in a small SOT-23/SC-70 variant (T1G)
- Ideal for simple, watchdog-free MCU/processor reset in embedded systems
Usage notes
- Connect Vcc, GND, and the RESET# line to your MCU (with any needed pull-up per MCU requirements)
- Check the datasheet for exact electrical specs, hysteresis, and timing to match your application
If you want exact figures (threshold tolerance, delay, current, etc.), I can pull the datasheet details.

Features

Here are the typical features of NCP511SN33T1G (ON Semiconductor):
- Fixed 3.3 V output LDO regulator
- Very small footprint (SOT-23-3 style) and RoHS-compliant
- Enable (EN) input to turn the regulator on/off
- Low quiescent current for battery-powered applications
- Overcurrent/short-circuit protection and thermal shutdown
- Stable with ceramic output capacitors
- Good line and load regulation with fast transient response
- Suitable for powering microcontrollers and digital logic rails in compact designs
Note: For exact electrical specs (input range, dropout, current limit, quiescent current values, etc.), please consult the official datasheet.

Package

SOT-23-3 (SC-70-3) package; 3-pin, lead-free (green) variant.

Pinout

- Pin count: 5 pins (SOT-23-5/SC-70-5 package)
- Function: Fixed 3.3 V low-dropout regulator with an enable/shutdown input
Typical pinout (pin 1–5): EN, GND, VOUT, VIN, NC (No Connect). Note: verify exact pin assignment in the datasheet for your package variant.

Manufacturer

- Manufacturer: ON Semiconductor (ON Semiconductor Corporation).
- What kind of company: A global American semiconductor company, headquartered in Phoenix, Arizona, that designs and manufactures energy‑efficient power management ICs, analog devices, discretes, sensors, and related components for automotive, industrial, and consumer markets.

Application

NCP511SN33T1G is a fixed 3.3V low-dropout regulator. Common applications: local 3.3V supply rails for digital/mixed-signal ICs (MCUs, DSPs, memories, sensors); post-regulation in embedded/portable systems with 1.8–5V rails; consumer electronics, networking equipment, USB peripherals; automotive and industrial control modules needing a stable 3.3V rail.

Equivalent

Equivalent products to NCP511SN33T1G (3.3V fixed LDO regulator) from other vendors include: TI TLV70033, TPS73033/TPS7A33; Analog Devices ADP3333; Microchip MIC5319-3.3. For an exact cross-reference, use distributor tools (Digi-Key/Mouser) or ON Semiconductor’s cross-reference with your package and current rating.