規格
| 屬性 | 價值 |
| Package | Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 10V |
| Voltage-Output(Min/Fixed) | 0.2V |
| Voltage-Output(Max) | 9.5V |
| VoltageDropout(Max) | 0.285V @ 500mA |
| Current-Output | 500mA |
| Current-Quiescent(Iq) | 250 µA |
| Current-Supply(Max) | 10 mA |
| PSRR | 70dB (120Hz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature, Reverse Polarity |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 16-WFDFN Exposed Pad |
概述
Description
LT3021EDH#PBF is Linear Technology’s (now Analog Devices) Pb-free version of the LT3021, a compact, adjustable low-dropout regulator (LDO) in the EDH package. It’s designed to generate a stable output voltage for microcontrollers, ASICs, and other mixed-signal ICs in portable or battery-powered apps. Key points:
- Adjustable output via external resistor divider (VOUT set by FB feedback).
- Enable/shutdown control and protection features (current limit and thermal shutdown).
- Low quiescent current and fast transient response for efficient operation.
- Suitable for a wide input range with a small dropout, enabling good regulation from battery supplies.
- Package: Pb-free EDH (small footprint) variant.
How to use: connect VIN to a source, place input/output capacitors per datasheet, set VOUT with R1/R2, and drive EN to enable. For exact pinout, capacitor values, and performance specs, refer to the LT3021 data sheet and the EDH#PBF packaging notes.
- Adjustable output via external resistor divider (VOUT set by FB feedback).
- Enable/shutdown control and protection features (current limit and thermal shutdown).
- Low quiescent current and fast transient response for efficient operation.
- Suitable for a wide input range with a small dropout, enabling good regulation from battery supplies.
- Package: Pb-free EDH (small footprint) variant.
How to use: connect VIN to a source, place input/output capacitors per datasheet, set VOUT with R1/R2, and drive EN to enable. For exact pinout, capacitor values, and performance specs, refer to the LT3021 data sheet and the EDH#PBF packaging notes.
Features
Here are the key features of LT3021EDH#PBF (datasheet gist):
- Low-dropout linear regulator (LDO) with enable/shutdown control
- Adjustable output via external resistor network
- Very low quiescent current (microamp range)
- Low output noise and high power-supply rejection (PSRR
- Short-circuit protection and thermal shutdown
- Over-current/limit protection
- Reverse-current protection from output to input
- 8-lead EDH package; RoHS-compliant (PBF)
Note: exact output current capability and voltage ranges are defined in the datasheet; consult it for precise numbers.
- Low-dropout linear regulator (LDO) with enable/shutdown control
- Adjustable output via external resistor network
- Very low quiescent current (microamp range)
- Low output noise and high power-supply rejection (PSRR
- Short-circuit protection and thermal shutdown
- Over-current/limit protection
- Reverse-current protection from output to input
- 8-lead EDH package; RoHS-compliant (PBF)
Note: exact output current capability and voltage ranges are defined in the datasheet; consult it for precise numbers.
Pinout
8 pins. LT3021EDH#PBF is a positive adjustable low-dropout regulator (LDO) with an enable input. It uses an external resistor network on the FB pin to set the output voltage; typical pinout includes IN, OUT, GND, EN, FB (and two no-connects).
Manufacturer
- Manufacturer: Analog Devices, Inc. (ADI). The LT3021 originated from Linear Technology; Linear Technology was acquired by Analog Devices in 2017, making ADI the current manufacturer.
- What kind of company: ADI is a multinational American semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits (e.g., power management, data converters, amplifiers). It is a large integrated device manufacturer (IDM) with its own fabrication capabilities.
- What kind of company: ADI is a multinational American semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits (e.g., power management, data converters, amplifiers). It is a large integrated device manufacturer (IDM) with its own fabrication capabilities.
Application
LT3021EDH#PBF is a low-noise, low-dropout regulator. Typical application areas include:
- Battery-powered portable devices requiring long life
- Precision analog/mixed-signal circuits (op-amps, ADC/DAC references)
- Microcontrollers, DSPs and other digital ICs needing a clean supply
- RF/transceiver modules and PLLs where noise is critical
- Post-regulation for switching regulator designs in communications and instrumentation
- Medical and industrial instruments demanding stable, low-noise regulation
- Battery-powered portable devices requiring long life
- Precision analog/mixed-signal circuits (op-amps, ADC/DAC references)
- Microcontrollers, DSPs and other digital ICs needing a clean supply
- RF/transceiver modules and PLLs where noise is critical
- Post-regulation for switching regulator designs in communications and instrumentation
- Medical and industrial instruments demanding stable, low-noise regulation
Package
LT3021EDH#PBF uses an 8-pin MSOP (Small Outline) package, EDH variant, and is Pb-free.
