- RS Stock No.:
- 175-7435
- Mfr. Part No.:
- LT3045IDD#PBF
- Manufacturer:
- Linear Technology
Discontinued product
- RS Stock No.:
- 175-7435
- Mfr. Part No.:
- LT3045IDD#PBF
- Manufacturer:
- Linear Technology
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- US
Product Details
The LT3045 is a high performance low dropout linear regulator featuring LTCs 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.
Ultralow RMS Noise: 0.8μVRMS (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 Packages
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
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 Packages
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
Specifications
Attribute | Value |
---|---|
Maximum Output Current | 500mA |
Number of Outputs | 1 |
Output Voltage | 0 → 15 V |
Line Regulation | ±3 μV/V |
Load Regulation | 0.5 mV |
Accuracy | ±1% |
Mounting Type | Surface Mount |
Polarity | Positive |
Package Type | DFN |
Quiescent Current | 2.2mA |
Pin Count | 10 |
Output Type | Adjustable |
Dimensions | 3 x 3 x 0.7mm |
Height | 0.7mm |
Maximum Input Voltage | 20 V |
Maximum Operating Temperature | +125 °C |
Minimum Input Voltage | 1.8 V |
Minimum Operating Temperature | -40 °C |
Width | 3mm |
Length | 3mm |