LT1375CN8-5 Analog Devices Integrated Circuit (Dual-In-Line Packages) In Stock
Analog Devices LT1375CN8-5 is a 500 mA fixed 5 V output current-mode PWM step-down switching regulator accepting 5 V to 25 V input in an 8-pin PDIP package. Delivers high efficiency DC-DC conversion for embedded power supplies.
- Manufacturer
- Analog Devices
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LT1375CN8-5 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1375CN8-5?
- Current-mode PWM control with fixed 5 V output and 500 mA continuous switch current for simple, stable buck regulators
- Wide 5 V to 25 V input range operating at 500 kHz switching frequency for compact inductor and capacitor selection
- Internal current limiting and thermal shutdown in an 8-pin PDIP package, minimizing external component count
What is LT1375CN8-5 used for?
LT1375CN8-5 is ideal for point-of-load 5 V power supplies in industrial control boards, embedded microcontroller systems, and instrumentation equipment powered from unregulated 12 V or 24 V rails. Its fixed 5 V output simplifies design by eliminating external resistor dividers, while the 500 kHz switching frequency enables the use of small surface-mount inductors and ceramic capacitors. Designers use it in benchtop test equipment, PLC auxiliary supplies, and legacy 5 V logic conversion from higher-voltage buses.
What are the specifications of LT1375CN8-5?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 5.1V |
| Output Voltage-Min | 4.9V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 1.4mA |
| Surface Mount | NO |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 570kHz |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LT1375CN8-5 datasheet?
LT1375CN8-5 Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1375CN8-5?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum input voltage LT1375CN8-5 can accept, and how does that suit 24 V industrial bus applications?
LT1375CN8-5 accepts input voltages from 5 V up to 25 V, comfortably tolerating a 24 V nominal industrial bus including transient spikes up to the absolute maximum rating. This allows direct connection to standard 24 V DIN-rail supplies without an upstream pre-regulator, simplifying PLC and motor-drive ancillary power designs.
At 500 kHz switching frequency, what inductor value range is typically required for LT1375CN8-5?
At 500 kHz, a 10 µH to 33 µH inductor is typically sufficient for LT1375CN8-5 with 500 mA load, allowing compact surface-mount inductors smaller than 5 mm x 5 mm. Lower switching loss at this frequency compared to 100 kHz designs reduces heat dissipation and improves overall efficiency above 85% in typical applications.
In a 5 V embedded system, when should a designer choose LT1375CN8-5 over a low-dropout linear regulator?
LT1375CN8-5 is the better choice when the input-to-output voltage difference exceeds 2 V to 3 V, because a switching regulator maintains efficiency above 80% where a linear regulator would dissipate the voltage difference as heat. For a 12 V input supplying 500 mA at 5 V, the LT1375CN8-5 saves approximately 3.5 W of power loss compared to a linear approach.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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