LTC3642IMS8E-3.3#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC3642IMS8E-3.3#PBF is an automotive-grade synchronous buck DC-DC converter accepting 4.5 V to 45 V input and delivering a fixed 3.3 V output at up to 50 mA. It uses current-mode burst-mode control for high efficiency at light loads in an 8-pin MSOP package. In stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3642IMS8E-3.3#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2100(MOQ 19)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.5 V to 45 V input range with fixed 3.3 V output at 50 mA supports automotive battery and industrial rail applications
- Current-mode burst-mode control achieves ultra-low quiescent current for high efficiency at light loads
- Automotive-grade 8-pin MSOP-EP package rated for -40°C to 125°C ambient temperature range
Applications
LTC3642IMS8E-3.3#PBF is designed for automotive always-on subsystems such as telematics modules, keyless entry, and body-control ECUs powered directly from a 12 V or 24 V vehicle battery. Its wide 45 V input tolerance also suits industrial equipment and motor-drive boards where supply spikes up to 40 V must be safely regulated to a stable 3.3 V logic rail.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1662 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | BURST MODE |
| Input Voltage-Max | 45V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.05A |
| Output Voltage-Max | 3.34V |
| Output Voltage-Min | 3.24V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does LTC3642IMS8E-3.3#PBF support and why is that useful in automotive designs?
The LTC3642IMS8E-3.3#PBF accepts 4.5 V to 45 V input, covering 12 V and 24 V automotive battery rails including load-dump transients up to 40 V. This wide range means no external protection clamp is needed for most automotive battery-connected designs, reducing component count and board area.
How much output current can LTC3642IMS8E-3.3#PBF deliver and what circuits does that fit?
It delivers up to 50 mA at 3.3 V, sufficient to power microcontrollers, CAN transceivers, and low-power sensors. For example, a STM32L0 running at 32 MHz draws around 5 mA, so the 50 mA budget comfortably supplies an entire node including peripherals in automotive telematics or body-control modules.
How does burst-mode control in LTC3642IMS8E-3.3#PBF reduce quiescent current consumption?
Burst-mode control suspends switching when load current drops below a threshold, reducing quiescent current to under 30 µA. This is critical for automotive always-on systems that must maintain 3.3 V standby over weeks on a parked vehicle battery without significant discharge.
What is the temperature rating of LTC3642IMS8E-3.3#PBF and does it meet AEC-Q100 requirements?
LTC3642IMS8E-3.3#PBF is rated for -40°C to 125°C junction temperature and is designed to meet automotive reliability standards, making it suitable for underhood and cabin electronics that must survive harsh thermal environments across the full automotive operating profile.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
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 |
|---|---|---|
| 19+ | $5.5800 | $106.02 |
| 100+ | $5.0011 | $500.11 |
| 250+ | $4.5750 | $1143.75 |
| 1000+ | $4.2100 | $4210.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”