Power Management
Switching Regulator
SEPIC Regulators
Power Management
Switching Regulator
Step-Up (Boost) Regulators
External Power Switch Boost
Space & Harsh Environment
Extended Temperature Plastic (H & MP)
Extended Temperature (H & MP) Switching Regulators
LTC3862-2 - Multi-Phase Current Mode Step-Up DC/DC Controller
Features
- Wide VIN Range: 5.5V to 36V Operation
- 2-Phase Operation Reduces Input and Output Capacitance
- Fixed Frequency, Peak Current Mode Control
- Internal 10V LDO Regulator
- Lower UVLO Thresholds Allows the Use of MOSFETs Rated at 6V VGS
- Adjustable Slope Compensation Gain
- Adjustable Max Duty Cycle (Up to 96%)
- Adjustable Leading Edge Blanking
- ±1% Internal Voltage Reference
- Programmable Operating Frequency with One External Resistor (75kHz to 500kHz)
- Phase-Lockable Fixed Frequency 50kHz to 650kHz
- SYNC Input and CLKOUT for 2-, 3-, 4-, 6- or 12-Phase Operation (PHASEMODE Programmable)
- 24-Lead Narrow SSOP Package
- 5mm × 5mm QFN Package with 0.65mm Lead Pitch
- 24-Lead Thermally Enhanced TSSOP Package
Typical Application
Description
The LTC®3862-2 is a two-phase constant frequency, current mode boost and SEPIC controller that drives N-channel power MOSFETs. Two-phase operation reduces system filtering capacitance and inductance requirements.
The operating frequency can be set with an external resistor over a 75kHz to 500kHz range and can be synchronized to an external clock using the internal PLL. Multiphase operation is possible using the SYNC input, the CLKOUT output and the PHASEMODE control pin allowing 2-, 3-, 4-, 6- or 12-phase operation.
Other features include an internal 10V LDO with undervoltage lockout protection for the gate drivers, a precision RUN pin threshold with programmable hysteresis, soft-start and programmable leading edge blanking and maximum duty cycle.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
TSSOP-24
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- 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
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTC3862EFE#PBF | TSSOP | 24 | E | $4.87 | $3.41 | View |
| LTC3862EFE#TRPBF | TSSOP | 24 | E | $3.47 | View | |
| LTC3862EFE-1#PBF | TSSOP | 24 | E | $4.87 | $3.41 | View |
| LTC3862EFE-1#TRPBF | TSSOP | 24 | E | $3.47 | View | |
| LTC3862EFE-2#PBF | TSSOP | 24 | E | $4.87 | $3.41 | View |
| LTC3862EFE-2#TRPBF | TSSOP | 24 | E | $3.47 | View | |
| LTC3862EGN#PBF | SSOP | 24 | E | $4.70 | $3.29 | View |
| LTC3862EGN#TRPBF | SSOP | 24 | E | $3.35 | View | |
| LTC3862EGN-1#PBF | SSOP | 24 | E | $4.70 | $3.29 | View |
| LTC3862EGN-1#TRPBF | SSOP | 24 | E | $3.35 | View | |
| LTC3862EGN-2#PBF | SSOP | 24 | E | $4.70 | $3.29 | View |
| LTC3862EGN-2#TRPBF | SSOP | 24 | E | $3.35 | View | |
| LTC3862EUH#PBF | QFN | 24 | E | $4.70 | $3.29 | View |
| LTC3862EUH#TRPBF | QFN | 24 | E | $3.35 | View | |
| LTC3862EUH-1#PBF | QFN | 24 | E | $4.70 | $3.29 | View |
| LTC3862EUH-1#TRPBF | QFN | 24 | E | $3.35 | View | |
| LTC3862EUH-2#PBF | QFN | 24 | E | $4.70 | $3.29 | View |
| LTC3862EUH-2#TRPBF | QFN | 24 | E | $3.35 | View | |
| LTC3862HFE#PBF | TSSOP | 24 | H | $5.89 | $4.12 | View |
| LTC3862HFE#TRPBF | TSSOP | 24 | H | $4.18 | View | |
| LTC3862HFE-1#PBF | TSSOP | 24 | H | $5.89 | $4.12 | View |
| LTC3862HFE-1#TRPBF | TSSOP | 24 | H | $4.18 | View | |
| LTC3862HFE-2#PBF | TSSOP | 24 | H | $5.89 | $4.12 | View |
| LTC3862HFE-2#TRPBF | TSSOP | 24 | H | $4.18 | View | |
| LTC3862HGN#PBF | SSOP | 24 | H | $5.71 | $4.00 | View |
| LTC3862HGN#TRPBF | SSOP | 24 | H | $4.06 | View | |
| LTC3862HGN-1#PBF | SSOP | 24 | H | $5.71 | $4.00 | View |
| LTC3862HGN-1#TRPBF | SSOP | 24 | H | $4.06 | View | |
| LTC3862HGN-2#PBF | SSOP | 24 | H | $5.71 | $4.00 | View |
| LTC3862HGN-2#TRPBF | SSOP | 24 | H | $4.06 | View | |
| LTC3862HUH#PBF | QFN | 24 | H | $5.71 | $4.00 | View |
| LTC3862HUH#TRPBF | QFN | 24 | H | $4.06 | View | |
| LTC3862HUH-1#PBF | QFN | 24 | H | $5.71 | $4.00 | View |
| LTC3862HUH-1#TRPBF | QFN | 24 | H | $4.06 | View | |
| LTC3862HUH-2#PBF | QFN | 24 | H | $5.71 | $4.00 | View |
| LTC3862HUH-2#TRPBF | QFN | 24 | H | $4.06 | View | |
| LTC3862IFE#PBF | TSSOP | 24 | I | $5.46 | $3.82 | View |
| LTC3862IFE#TRPBF | TSSOP | 24 | I | $3.88 | View | |
| LTC3862IFE-1#PBF | TSSOP | 24 | I | $5.46 | $3.82 | View |
| LTC3862IFE-1#TRPBF | TSSOP | 24 | I | $3.88 | View | |
| LTC3862IFE-2#PBF | TSSOP | 24 | I | $5.46 | $3.82 | View |
| LTC3862IFE-2#TRPBF | TSSOP | 24 | I | $3.88 | View | |
| LTC3862IGN#PBF | SSOP | 24 | I | $5.30 | $3.71 | View |
| LTC3862IGN#TRPBF | SSOP | 24 | I | $3.77 | View | |
| LTC3862IGN-1#PBF | SSOP | 24 | I | $5.30 | $3.71 | View |
| LTC3862IGN-1#TRPBF | SSOP | 24 | I | $3.77 | View | |
| LTC3862IGN-2#PBF | SSOP | 24 | I | $5.30 | $3.71 | View |
| LTC3862IGN-2#TRPBF | SSOP | 24 | I | $3.77 | View | |
| LTC3862IUH#PBF | QFN | 24 | I | $5.30 | $3.71 | View |
| LTC3862IUH#TRPBF | QFN | 24 | I | $3.77 | View | |
| LTC3862IUH-1#PBF | QFN | 24 | I | $5.30 | $3.71 | View |
| LTC3862IUH-1#TRPBF | QFN | 24 | I | $3.77 | View | |
| LTC3862IUH-2#PBF | QFN | 24 | I | $5.30 | $3.71 | View |
| LTC3862IUH-2#TRPBF | QFN | 24 | I | $3.77 | View | |
| Buy Now • Request Samples | ||||||
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 |
|---|---|---|---|
| DC1891A | LTC3862EFE-2 Demo Board | 6V < VIN < 60V; VOUT = 12V @ 6A | Contact Factory | |
| Buy Now | |||
Applications
- Automotive, Telecom and Industrial Power Supplies
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Simulate
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Related models available in LTspice IV
LTC3862-1
LTC3862-2
LTC3862
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
