仕様
| 属性 | 値 |
| Package / Case | Tube |
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 19.8V |
| Current - Output | 5A |
| Frequency - Switching | 1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
LTC3605IUF is Linear Technology’s (Analog Devices) dual, synchronous buck regulator in an 8-pin package, industrial-temperature grade (I suffix). It contains two high-efficiency DC-DC converters powered from a common input to generate two low-voltage rails.
Key points:
- Dual, interleaved, synchronous buck regulators with integrated MOSFETs (no external diodes needed).
- Current-mode control with two-phase operation to reduce ripple and improve transient response.
- Independent adjustable outputs via feedback networks; includes enable, soft-start, overcurrent protection, and thermal shutdown.
- Requires external inductors and capacitors per rail; suitable for multi-rail power for processors, FPGAs, embedded systems, etc.
- Package/grade: 8-pin MSOP/DFN, industrial temperature, likely lead-free.
In short, LTC3605IUF is a compact, efficient solution for generating two regulated rails from a single input, ideal for compact, multi-rail power architectures.
Key points:
- Dual, interleaved, synchronous buck regulators with integrated MOSFETs (no external diodes needed).
- Current-mode control with two-phase operation to reduce ripple and improve transient response.
- Independent adjustable outputs via feedback networks; includes enable, soft-start, overcurrent protection, and thermal shutdown.
- Requires external inductors and capacitors per rail; suitable for multi-rail power for processors, FPGAs, embedded systems, etc.
- Package/grade: 8-pin MSOP/DFN, industrial temperature, likely lead-free.
In short, LTC3605IUF is a compact, efficient solution for generating two regulated rails from a single input, ideal for compact, multi-rail power architectures.
Features
Key features of LTC3605IUF (dual synchronous buck regulator):
- Dual synchronous buck regulators with integrated high‑side and low‑side MOSFETs
- Wide input range suitable for batteries and adapters
- Adjustable output voltages via external feedback resistors
- Fixed-frequency PWM with current‑mode control; selectable/synchronizable frequency
- Burst/Power‑Save mode for high efficiency at light load
- Soft‑start to limit inrush; enable/shutdown control
- Power‑good indication and fault reporting
- Robust protections: overcurrent, overtemperature, and undervoltage lockout
- Optional external compensation (COMP/FB network) for stability
- Compact packaging (IUF variant) for small-space designs
Note: Exact per‑channel output capability and voltage range vary by part variant; consult the datasheet for precise electrical specifications and recommended application circuits.
- Dual synchronous buck regulators with integrated high‑side and low‑side MOSFETs
- Wide input range suitable for batteries and adapters
- Adjustable output voltages via external feedback resistors
- Fixed-frequency PWM with current‑mode control; selectable/synchronizable frequency
- Burst/Power‑Save mode for high efficiency at light load
- Soft‑start to limit inrush; enable/shutdown control
- Power‑good indication and fault reporting
- Robust protections: overcurrent, overtemperature, and undervoltage lockout
- Optional external compensation (COMP/FB network) for stability
- Compact packaging (IUF variant) for small-space designs
Note: Exact per‑channel output capability and voltage range vary by part variant; consult the datasheet for precise electrical specifications and recommended application circuits.
Pinout
Pin count: 16 pins.
Function: Dual synchronous buck regulator (two-channel step-down DC-DC converter) in one package.
Function: Dual synchronous buck regulator (two-channel step-down DC-DC converter) in one package.
Manufacturer
- Manufacturer: Linear Technology (the LTC series brand). Linear Technology is an American semiconductor company specializing in analog and mixed-signal integrated circuits, especially power-management ICs; it is now part of Analog Devices (ADI).
Package
LTC3605IUF comes in a 16‑lead MSOP (small‑outline) package.
