LT3045EDD-1#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 | Adjustable current limiting;Operating status indication;Enable control;Input under-voltage protection;Reverse polarity voltage protection;Reverse-polarity current protection;Thermal shutdown;Short Circuit Protection;Over Current Protection |
| Package / Case | DFN-12 |
Product Introduction
The LT3045-1 is a high performance low dropout linear regulator featuring 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 LT3045-1 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. In addition to the LT3045 feature set, the LT3045-1 incorporates a VIOC tracking function to control an upstream switching converter to maintain a constant voltage across the LT3045-1 and hence minimize power dissipation.
The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.3mA and drops to <1µA in shutdown. The LT3045-1’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.
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
- VIOC Pin Controls Upstream Regulator to Minimize Power Dissipation
- Single Resistor Programs Output Voltage
- 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 3mm × 3mm DFN Packages
Applications
- - RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs - Very Low Noise Instrumentation - High Speed/High Precision Data Converters - Medical Applications: Imaging, Diagnostics - Post-Regulator for Switching Supplies
Datasheet
Alternative Parts
Common LT3045EDD-1#TRPBF alternatives overseas buyers search for:
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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