DocumentationDatasheet
Reliability Data
Press Release
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Features
- Extended Safe Operating Area
- Maximum Output Current: 800mA
- Stable with or without Input/Output Capacitors
- Wide Input Voltage Range: 1.2V to 36V
- Single Resistor Sets Output Voltage
- Output Adjustable to 0V
- 50μA SET Pin Current: 1% Initial Accuracy
- Output Voltage Noise: 27μVRMS
- Parallel Multiple Devices for Higher Current, Heat Spreading and Lower Noise
- Pin Compatible Upgrade to LT1117
- Reverse-Battery and Reverse-Current Protection
- <1mV Typical Load Regulation Independent of VOUT
- <0.001%/V Typical Line Regulation
- 3-Lead SOT-223, 3-Lead DD-Pak, 8-Lead 3mm × 3mm DFN Packages
Typical Application
Description
The LT®3088 is an 800mA low dropout linear regulator designed for rugged industrial applications. A key feature of the IC is the extended safe operating area (SOA). The LT3088 can be paralleled for higher output current or heat spreading. The device withstands reverse input and reverse output-to-input voltages without reverse current flow.
The LT3088’s precision 50μA reference current source allows a single resistor to program output voltage to any level between zero and 34.5V. The current reference architecture makes load regulation independent of output voltage. The LT3088 is stable with or without input and output capacitors.
Internal protection circuitry includes reverse-battery and reverse-current protection, current limiting and thermal limiting. The LT3088 is offered in the 3-lead SOT-223, 3-lead DD-Pak, and an 8-lead 3mm × 3mm DFN package.
3x3 DFN-8,DDPAK-3,SOT-223
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LT3088HM#PBF | DD PAK | 3 | H | $4.09 | $2.86 |
| LT3088IST#PBF | SOT | 3 | I | $3.17 | $2.22 |
| LT3088HM#TRPBF | DD PAK | 3 | H | $2.92 | |
| LT3088EM#TRPBF | DD PAK | 3 | E | $2.26 | |
| LT3088EST#PBF | SOT | 3 | E | $2.79 | $1.95 |
| LT3088HDD#TRPBF | DFN | 8 | H | $2.69 | |
| LT3088IM#TRPBF | DD PAK | 3 | I | $2.59 | |
| LT3088IDD#PBF | DFN | 8 | I | $3.29 | $2.30 |
| LT3088MPM#TRPBF | DD PAK | 3 | MP | $6.00 | |
| LT3088HST#PBF | SOT | 3 | H | $3.66 | $2.56 |
| LT3088EST#TRPBF | SOT | 3 | E | $2.01 | |
| LT3088HDD#PBF | DFN | 8 | H | $3.75 | $2.63 |
| LT3088MPST#PBF | SOT | 3 | MP | $7.53 | $5.27 |
| LT3088IST#TRPBF | SOT | 3 | I | $2.28 | |
| LT3088IM#PBF | DD PAK | 3 | I | $3.62 | $2.53 |
| LT3088HST#TRPBF | SOT | 3 | H | $2.62 | |
| LT3088MPM#PBF | DD PAK | 3 | MP | $8.49 | $5.94 |
| LT3088IDD#TRPBF | DFN | 8 | I | $2.36 | |
| LT3088MPST#TRPBF | SOT | 3 | MP | $5.33 | |
| LT3088EM#PBF | DD PAK | 3 | E | $3.14 | $2.20 |
| LT3088EDD#TRPBF | DFN | 8 | E | $2.06 | |
| LT3088EDD#PBF | DFN | 8 | E | $2.86 | $2.00 |
| LT3088MPM | DD PAK | 3 | MP | $8.49 | $5.94 |
| LT3088IDD | DFN | 8 | I | $6.58 | $4.60 |
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 |
|---|---|---|---|
| DC2279A | LT3088EDD Demo Board | 800mA Wide SOA Linear Regulator, 1.6V ≤ VIN ≤ 36V, Vout = 1.2V/1.5V/1.8V/2.5V/3.3V/5V @ 800mA | $100.00 |