LT3015 Series - 1.5A, Low Noise, Negative Linear Regulator with Precision Current Limit
Features
- Output Current: 1.5A
- Dropout Voltage: 310mV
- Precision Current Limit with Foldback
- Low Output Noise: 60μVRMS (10Hz to 100kHz)
- Low Quiescent Current: 1.1mA
- Precision Positive or Negative Shutdown Logic
- Fast Transient Response
- Wide Input Voltage Range: –1.8V to –30V
- Adjustable Output Voltage Range: –1.22V to –29.3V
- Fixed Output Voltages: –2.5V, –3V, –3.3V, –5V, –12V, –15V
- Controlled Quiescent Current in Dropout
- < 1μA Quiescent Current in Shutdown
- Stable with 10μF Output Capacitor
- Stable with Ceramic, Tantalum or Aluminum Capacitors
- Thermal Limit with Hysteresis
- Reverse Output Protection
- 5-Lead TO-220 and DD-Pak, Thermally Enhanced 12-Lead MSOP and 8-Lead 3mm × 3mm × 0.75mm DFN Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LT®3015 series are low noise, low dropout, negative linear regulators with fast transient response. The devices supply up to 1.5A of output current at a typical dropout voltage of 310mV. Operating quiescent current is typically 1.1mA and drops to < 1μA in shutdown. Quiescent current is also well controlled in dropout. In addition to fast transient response, the LT3015 series exhibit very low output noise, making them ideal for noise sensitive applications.
The LT3015 regulators are stable with a minimum 10μF output capacitor. Moreover, the regulator can use small ceramic capacitors without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse output protection, precision current limit with foldback and thermal limit with hysteresis.
The LT3015 regulators are available in fixed output voltages of –2.5V, –3V, –3.3V, –5V, –12V and –15V and as an adjustable device with a –1.22V reference voltage. Packages include the 5-lead TO-220 and DD-Pak, a thermally enhanced 12-lead MSOP and the low profile (0.75 mm) 8-lead 3mm × 3mm DFN.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LT3015EDD-12#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-12#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-15#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-15#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-2.5#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-2.5#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-3.3#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-3.3#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-3#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-3#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-5#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD-5#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EDD#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3015EMSE-12#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-12#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-15#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-15#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-2.5#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-2.5#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-3.3#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-3.3#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-3#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-3#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-5#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE-5#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE#PBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EMSE#TRPBF | MS-12E | MSE | E | 05-08-1666 | Yes |
| LT3015EQ-12#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-12#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-15#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-15#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-2.5#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-2.5#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-3.3#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-3.3#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-3#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-3#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-5#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ-5#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ#PBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015EQ#TRPBF | DDPAK-5 | Q | E | 05-08-1461 | Yes |
| LT3015ET-12#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET-15#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET-2.5#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET-3.3#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET-3#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET-5#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET#PBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015ET#TRPBF | TO-220 | T | E | 05-08-1421 (Standard) | Yes |
| LT3015IDD-12#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-12#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-15#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-15#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-2.5#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-2.5#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-3.3#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-3.3#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-3#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-3#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-5#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD-5#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IDD#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3015IMSE-12#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-12#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-15#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-15#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-2.5#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-2.5#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-3.3#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-3.3#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-3#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-3#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-5#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE-5#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE#PBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IMSE#TRPBF | MS-12E | MSE | I | 05-08-1666 | Yes |
| LT3015IQ-12#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-12#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-15#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-15#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-2.5#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-2.5#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-3.3#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-3.3#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-3#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-3#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-5#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ-5#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ#PBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IQ#TRPBF | DDPAK-5 | Q | I | 05-08-1461 | Yes |
| LT3015IT-12#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT-15#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT-2.5#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT-3.3#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT-3#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT-5#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT#PBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015IT#TRPBF | TO-220 | T | I | 05-08-1421 (Standard) | Yes |
| LT3015MPMSE-12#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-12#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-15#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-15#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-2.5#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-2.5#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-3.3#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-3.3#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-3#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-3#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-5 | MS-12E | MSE | MP | 05-08-1666 | No |
| LT3015MPMSE-5#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE-5#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE#PBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPMSE#TR | MS-12E | MSE | MP | 05-08-1666 | No |
| LT3015MPMSE#TRPBF | MS-12E | MSE | MP | 05-08-1666 | Yes |
| LT3015MPQ-12#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-12#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-15#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-15#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-2.5#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-2.5#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-3.3#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-3.3#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-3#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-3#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-5#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ-5#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ#PBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
| LT3015MPQ#TRPBF | DDPAK-5 | Q | MP | 05-08-1461 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
sales office or authorized distributor.Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1728A | LT3015 Demo Board | Low Noise, Negative Linear Regulator, Precision Current Limit, -1.8V ≤ VIN ≤ -30V, Vout = -1.22/-2.5/-5/-12/-15V @ 1.5A | $100.00 | |
| Buy Now | |||
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation pagesales office or authorized distributor.
Applications
- Post-Regulator for Switching Supplies
- Negative Logic Supplies
- Low Noise Instrumentation
- Industrial Supplies
- Negative Complement to the LT1963A
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Design Tools
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Technical Support
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