LT3045IMSE#TRPBF
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 7.5 V |
| Output Current | 0.5 A |
| Working Voltage V | 20 V |
| Channels | 1 |
| Type | Description |
|---|---|
| Iq A | 0.002 A |
| Output Configuration | Positive |
| Operating Temp | -40°C ~ +125°C @(Tj) |
| Features | Enable control;Adjustable current limiting;Operating status indication;Input under-voltage protection;Reverse polarity voltage protection;Reverse-polarity current protection;Short Circuit Protection;Thermal shutdown;Over Current Protection |
| Package / Case | MSOP-12-EP |
Product Introduction
The LT3045 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3045 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB.
The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.2mA and drops to <1µA in shutdown. The LT3045’s wide output voltage range (0V to 15V) while maintaining unity - gain operation provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage. Additionally, the regulator features programmable current limit, fast start - up capability and programmable power good to indicate output voltage regulation.
The LT3045 is stable with a minimum 10µF ceramic output capacitor. Built - in protection includes reverse - battery protection, reverse - current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3045 is available in thermally enhanced 12 - Lead MSOP and 10 - Lead 3mm × 3mm DFN packages.
Features
- Ultralow RMS Noise: 0.8µV_{RMS} (10Hz to 100kHz)
- Ultralow Spot Noise: 2nV/√Hz at 10kHz
- Ultrahigh PSRR: 76dB at 1MHz
- Output Current: 500mA
- Wide Input Voltage Range: 1.8V to 20V
- Single Capacitor Improves Noise and PSRR
- 100µA SET Pin Current: ±1% Initial Accuracy
- Single Resistor Programs Output Voltage
- High Bandwidth: 1MHz
- Programmable Current Limit
- Low Dropout Voltage: 260mV
- Output Voltage Range: 0V to 15V
- Programmable Power Good
- Fast Start - Up Capability
- Precision Enable/UVLO
- Parallelable for Lower Noise and Higher Current
- Internal Current Limit with Foldback
- Minimum Output Capacitor: 10µF Ceramic
- Reverse - Battery and Reverse - Current Protection
- 12 - Lead MSOP and 10 - Lead 3mm × 3mm DFN Package
Applications
- - RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs - Very Low Noise Instrumentation - High Speed/High Precision Data Converters - Medical Applications: Imaging, Diagnostics - Precision Power Supplies - Post - Regulator for Switching Supplies
Datasheet
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Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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