LTC3370MPUH#PBF - 4-Ch 8A Configurable Buck | Analog Devices
MPN: LTC3370MPUH#PBF ✓ সক্রিয়LTC3370MPUH#PBF সারাংশ
A multioutput buck converter is a type of DC-DC switching regulator that provides multiple regulated output voltages from a single input supply. It belongs to the broader category of power management ICs, which manage power distribution and conversion in electronic systems. By integrating multiple converters on one chip, it reduces component count, board area, and cost compared to discrete solutions.
Key features include a wide input voltage range of 2.25V to 5.5V, adjustable output voltage down to 0.8V, and a common switching frequency programmable via an external resistor. The device achieves high efficiency through synchronous rectification and offers low total no-load supply current, making it suitable for battery-powered applications. Its flexible configuration allows designers to allocate power stages dynamically to meet varying load requirements.
Technically, the LTC3370 uses a current-mode control architecture with internal compensation, ensuring stable operation across a wide range of output capacitors. The eight power stages can be combined in various parallel configurations to deliver higher current to a single output or distributed across multiple outputs. The pin-programmable C1-C3 pins simplify configuration without external components, reducing design complexity.
Typical applications include portable devices, industrial equipment, and automotive systems where multiple low-voltage rails are needed. For example, it can power an FPGA core, I/O, and auxiliary circuits from a single 5V supply. Its high efficiency and low quiescent current extend battery life in handheld devices.
When designing with this device, ensure proper input and output capacitor selection to maintain stability and minimize ripple. The exposed pad must be soldered to a large copper area for adequate thermal dissipation, especially at high output currents.
এর জন্য ড্রপ-ইন বিকল্প LTC3370MPUH#PBF — একই package, pin-to-pin compatible। ভিন্ন package-এর যেসব পার্টে PCB rework প্রয়োজন সেগুলো বাদ দেওয়া হয়েছে।
এই সিরিজের ভ্যারিয়েন্ট
একই সিরিজের মডেল যেগুলো drop-in compatible LTC3370MPUH#PBF (একই form factor এবং footprint) — পার্থক্য রয়েছে Maximum Output Current, Package, Operating Temperature Range, Output Voltage Range, Switching Frequency.
LTC3370IUH#PBF
✅ ড্রপ-ইনমূল্যের জন্য যোগাযোগ করুন
ডেটাশিট দেখুন →LTC3370EUH#PBF
✅ ড্রপ-ইনমূল্যের জন্য যোগাযোগ করুন
ডেটাশিট দেখুন →TPS65251RHAR
✅ ড্রপ-ইন ⚠️ স্পেক যাচাইকৃত নয়📋 রেফারেন্স বিকল্প (ক্যাটালগে নেই)
TPS65254RHAR
✅ ড্রপ-ইন ⚠️ স্পেক যাচাইকৃত নয়📋 রেফারেন্স বিকল্প (ক্যাটালগে নেই)
TPS65253RHAR
✅ ড্রপ-ইন ⚠️ স্পেক যাচাইকৃত নয়📋 রেফারেন্স বিকল্প (ক্যাটালগে নেই)
LTC3370MPUH#PBF সর্বোচ্চ রেটিং ও বৈদ্যুতিক বৈশিষ্ট্য
| আউটপুট টাইপ | Adjustable |
| আউটপুট ভোল্টেজ রেঞ্জ | 0.8V to 5.5V |
| সর্বোচ্চ আউটপুট কারেন্ট | 8A (total, configurable up to 4A per channel) |
| ইনপুট ভোল্টেজ রেঞ্জ | 2.25V to 5.5V |
| আউটপুটের সংখ্যা | 4 |
| সুইচিং ফ্রিকোয়েন্সি | Programmable via external resistor |
| সিনক্রোনাস রেক্টিফিকেশন | Yes |
| অপারেটিং তাপমাত্রার পরিসর | -40°C to 125°C (junction) |
| প্যাকেজ | 32-WFQFN Exposed Pad |
| মাউন্টিং টাইপ | Surface Mount |
| RoHS স্ট্যাটাস | Compliant |
| REACH Status | Compliant |
| Control Architecture | Current Mode |
LTC3370MPUH#PBF পিন কনফিগারেশন
| পিন 1 | SW1 — Switch node for buck 1 |
| পিন 2 | VIN1 — Input supply for buck 1 |
| পিন 3 | GND — Ground |
| পিন 4 | SW2 — Switch node for buck 2 |
| পিন 5 | VIN2 — Input supply for buck 2 |
| পিন 6 | GND — Ground |
| পিন 7 | SW3 — Switch node for buck 3 |
| পিন 8 | VIN3 — Input supply for buck 3 |
| পিন 9 | GND — Ground |
| পিন 10 | SW4 — Switch node for buck 4 |
| পিন 11 | VIN4 — Input supply for buck 4 |
| পিন 12 | GND — Ground |
| পিন 13 | C1 — Configuration pin 1 |
| পিন 14 | C2 — Configuration pin 2 |
| পিন 15 | C3 — Configuration pin 3 |
| পিন 16 | RT — Switching frequency programming |
| পিন 17 | RUN — Enable control |
| পিন 18 | VOUT1 — Output voltage sense for buck 1 |
| পিন 19 | VOUT2 — Output voltage sense for buck 2 |
| পিন 20 | VOUT3 — Output voltage sense for buck 3 |
| পিন 21 | VOUT4 — Output voltage sense for buck 4 |
| পিন 22 | FB1 — Feedback for buck 1 |
| পিন 23 | FB2 — Feedback for buck 2 |
| পিন 24 | FB3 — Feedback for buck 3 |
| পিন 25 | FB4 — Feedback for buck 4 |
| পিন 26 | GND — Ground |
| পিন 27 | GND — Ground |
| পিন 28 | GND — Ground |
| পিন 29 | GND — Ground |
| পিন 30 | GND — Ground |
| পিন 31 | GND — Ground |
| পিন 32 | GND — Ground |
সাধারণ ব্যবহার
LTC3370MPUH#PBF এর জন্য উপযুক্ত 6 অ্যাপ্লিকেশনs: FPGA Power Supply, Portable Devices, Industrial Automation, Automotive Electronics, Networking Equipment, Medical Devices.
FPGA Power Supply
The LTC3370MPUH#PBF provides multiple low-voltage rails (e.g., 1.0V core, 1.8V I/O, 2.5V auxiliary) from a single 5V input. Its configurable power stages allow up to 4A per channel, meeting the dynamic current demands of FPGAs. The high efficiency and low noise help maintain signal integrity in high-speed designs.
সুপারিশকৃত
Portable Devices
In battery-powered portable devices, the LTC3370MPUH#PBF efficiently converts battery voltage (2.25V-5.5V) to multiple regulated rails for processors, memory, and peripherals. Its low no-load supply current extends standby time, while the small 32-WFQFN package saves board space. The configurable outputs allow optimization for different operating modes.
সুপারিশকৃত
Industrial Automation
The LTC3370MPUH#PBF is suitable for industrial control systems requiring multiple stable voltage rails from a 5V supply. Its wide temperature range (-40°C to 125°C) ensures reliable operation in harsh environments. The synchronous buck converters provide high efficiency, reducing heat dissipation in sealed enclosures.
সুপারিশকৃত
Automotive Electronics
For automotive applications, the LTC3370MPUH#PBF can power infotainment systems, ADAS processors, and sensors from a 5V rail. Its high temperature grade supports under-hood environments. However, it is not AEC-Q100 qualified, so for strict automotive compliance, consider alternatives with certification.
সুপারিশকৃত
Networking Equipment
In networking equipment like routers and switches, the LTC3370MPUH#PBF provides multiple rails for SoCs, PHYs, and memory. Its configurable outputs allow flexible power allocation, and the high efficiency reduces cooling requirements. The small package is ideal for dense PCB layouts.
সুপারিশকৃত
Medical Devices
The LTC3370MPUH#PBF is used in medical devices requiring multiple low-noise voltage rails, such as patient monitors and diagnostic equipment. Its low output ripple and high efficiency are critical for sensitive analog circuits. The wide temperature range ensures reliable operation in clinical environments.
সুপারিশকৃত
সুপারিশকৃত পণ্যের সারসংক্ষেপ
এর জন্য ইঞ্জিনিয়ারিং রেফারেন্স ডেটা LTC3370MPUH#PBF — তুলনা, ডিজাইন গাইডেন্স এবং কমপ্লায়েন্স তথ্য।
নির্বাচন গাইড
বিকল্পের সাথে তুলনা
| পারামিটার | এই পণ্য | LTC3370IUH#PBF | LTC3370EUH#PBF | TPS65251RHAR |
|---|---|---|---|---|
| Package | 32-WFQFN Exposed Pad | 32-WFQFN Exposed Pad | 32-WFQFN Exposed Pad | 32-WFQFN Exposed Pad |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Input Voltage Range | 2.25V to 5.5V | 2.25V to 5.5V | 2.25V to 5.5V | 4.5V to 18V |
| Output Current (Total) | 8A | 8A | 8A | 3A |
| Number of Outputs | 4 | 4 | 4 | 3 |
| Output Voltage Range | 0.8V to 5.5V | 0.8V to 5.5V | 0.8V to 5.5V | 0.8V to 5.5V |
| Switching Frequency | Programmable | Programmable | Programmable | Fixed 500kHz |
| Operating Temperature Range | -40°C to 125°C | -40°C to 85°C | 0°C to 85°C | -40°C to 125°C |
মূল পার্থক্যসমূহ
- Higher temperature grade (M) for -40°C to 125°C operation (বনামLTC3370IUH#PBF)
- Configurable 8A total output with up to 4A per channel (বনামTPS65251RHAR)
- Wide input voltage range of 2.25V to 5.5V (বনামTPS65251RHAR)
ডিজাইন নোট
Place input and output capacitors close to the IC pins to minimize parasitic inductance. Use low-ESR ceramic capacitors (e.g., 10uF) for each input and output. The exposed pad must be soldered to a large copper area for thermal dissipation and electrical grounding.
At high output currents, the power dissipation can be significant. Calculate the junction temperature using the package thermal resistance (theta_JA) and ensure it stays below 125°C. Use multiple vias under the exposed pad to conduct heat to the PCB ground plane.
Ensure the C1-C3 pins are set correctly for the desired output configuration. Incorrect settings can lead to improper current sharing. Also, verify the switching frequency programming resistor value to avoid instability or excessive ripple.
কমপ্লায়েন্স তথ্য
RoHS and REACH compliant per Analog Devices. Not AEC-Q100 qualified.
