LTC3603IMSE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC3603IMSE#PBF is a current-mode synchronous step-down DC-DC converter with 4.5 V to 15 V input range, adjustable output from 0.6 V to 14.5 V, and 2.5 A continuous output current. Burst mode operation minimizes quiescent current at light loads in a compact MSOP-16E package. Available in stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LTC3603IMSE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.2600(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC3603IMSE#PBF?
- 4.5 V to 15 V input range with adjustable output from 0.6 V to 14.5 V covering a broad range of point-of-load regulation needs
- 2.5 A continuous output current with current-mode control for fast transient response and cycle-by-cycle current limiting
- Burst mode operation reduces quiescent current at light loads, extending battery life in portable and low-standby-power applications
What is LTC3603IMSE#PBF used for?
The LTC3603IMSE#PBF is used in point-of-load power conversion for embedded processors, FPGAs, and mixed-signal ASICs requiring regulated voltages from 0.6 V to 14.5 V from a 5 V or 12 V bus at up to 2.5 A. Its burst mode capability makes it well suited for battery-powered industrial handhelds and portable instruments where light-load efficiency above 90% is required. Engineers also deploy this regulator in automotive accessory boards and distributed power architectures where the 4.5 V to 15 V input range accommodates both 5 V and 12 V supply rails.
What are the specifications of LTC3603IMSE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1667 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 TO 14.5V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | BURST MODE |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 5.2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.7mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1150kHz |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| 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 | Thailand |
Where can I find the LTC3603IMSE#PBF datasheet?
LTC3603IMSE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3603IMSE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range and maximum output current of the LTC3603IMSE#PBF?
The LTC3603IMSE#PBF accepts an input voltage between 4.5 V and 15 V and delivers up to 2.5 A continuous output current with an adjustable output voltage from 0.6 V to 14.5 V. This wide conversion range makes it suitable for regulating 3.3 V, 1.8 V, or 1.0 V rails from a 5 V or 12 V power bus in embedded system designs.
How does burst mode operation in the LTC3603IMSE#PBF improve efficiency in battery-powered designs?
At light loads below approximately 10% of the 2.5 A rated current, the LTC3603IMSE#PBF enters burst mode, pulsing the switching transistors in short bursts and reducing quiescent current to tens of microamperes. This can increase light-load efficiency by 20 percentage points or more compared to fixed-frequency PWM operation, extending battery runtime in sleep-mode IoT devices from days to weeks on a single lithium cell.
Which processor core voltage generation scenarios favor the LTC3603IMSE#PBF over a linear regulator?
When stepping down from a 12 V rail to a 1.0 V processor core, a linear regulator dissipates 11 W of heat per ampere of load, requiring significant thermal management. The LTC3603IMSE#PBF achieves efficiencies above 85% in this conversion, dissipating less than 0.5 W at 2.5 A output, eliminating the need for heatsinks and enabling compact PCB designs in space-constrained FPGA and SoC applications.
How is the output voltage of the LTC3603IMSE#PBF set, and what is the minimum achievable output?
The output voltage is set by a resistor divider from the output rail to the FB pin, which has an internal reference of 0.6 V. The minimum achievable output is 0.6 V, which is suitable for low-voltage CPU cores in sub-1 V applications. Standard resistor combinations at 1% tolerance achieve output voltage accuracy within 1.5% across the full -40°C to +85°C industrial temperature range.
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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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