LTC3630AMPMSE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC3630AMPMSE#PBF is a high-efficiency 76 V input, 500 mA synchronous step-down DC-DC converter with adjustable output from 0.8 V to 76 V, plus fixed 3.3 V and 5 V preset modes. Uses voltage-mode PWM control in a compact MSOP package. Available from stock worldwide.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LTC3630AMPMSE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $13.3900(MOQ 1)
- Temp Range
- -55.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 76 V maximum input voltage enabling direct regulation from high-voltage industrial, automotive 48 V, and solar panel bus rails
- Synchronous rectification with integrated MOSFETs delivering high efficiency at 500 mA output without an external catch diode
- Adjustable output from 0.8 V to 76 V plus preset 3.3 V and 5 V modes providing design flexibility with minimal external resistors
Applications
The LTC3630AMPMSE#PBF is well-suited for industrial process control equipment, automotive 48 V systems, and solar power electronics where wide input bus voltages up to 76 V must be efficiently stepped down to logic or analog supply levels. Its synchronous architecture eliminates an external catch diode, simplifying PCB layout and reducing component count in space-constrained power modules. The adjustable output mode allows a single device to serve multiple voltage rail requirements across different product variants.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1871 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 76V; ALSO OPERATES AT 3.3V AND 5V OUPUT |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 76V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G12 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.4A |
| Output Voltage-Max | 76V |
| Output Voltage-Min | 0.8V |
| Output Voltage-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP12/16,.19,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 250kHz |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why is the 76 V input capability of the LTC3630AMPMSE#PBF critical for 48 V automotive and industrial bus designs?
Automotive 48 V mild-hybrid bus voltages can spike to 58 V or higher during load dump events, while industrial 48 V nominal rails may reach 60 V under transient conditions. The LTC3630AMPMSE#PBF's 76 V absolute maximum input rating provides over 15 V of headroom above the worst-case transient, allowing direct bus connection without an upstream overvoltage protection circuit, reducing system component count and improving reliability in harsh environments.
How does the LTC3630AMPMSE#PBF achieve high efficiency at 500 mA compared to a non-synchronous step-down converter?
Synchronous rectification replaces the external Schottky catch diode with an integrated low-side MOSFET switch, eliminating the 0.3 V to 0.5 V forward voltage drop that wastes power at high duty cycles. At 500 mA output from a 12 V input to a 5 V output, this diode conduction loss alone would consume 75 mW, translating to roughly 1.25% efficiency improvement that matters significantly in thermally constrained enclosures running at full 500 mA continuous load.
When does an engineer select the fixed 5 V preset mode versus the adjustable output mode on the LTC3630AMPMSE#PBF?
The preset 5 V mode simplifies design by eliminating the two external feedback resistors entirely, saving approximately 2 mm2 of PCB area and removing resistor tolerance as an output accuracy error source. Engineers choose the adjustable mode when the application requires a non-standard output voltage between 0.8 V and 76 V, such as a 3.8 V Li-ion charging profile or a 24 V relay driver rail, where the two-resistor voltage divider gives a custom setpoint with ±1% accuracy.
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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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $24.0400 | $24.04 |
| 10+ | $17.2780 | $172.78 |
| 1000+ | $13.3900 | $13390.00 |
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