LTC3404IMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LTC3404IMS8#PBF is an Analog Devices synchronous step-down DC-DC converter accepting 2.65 V to 6 V input and delivering a programmable 0.8 V to 6 V output at up to 600 mA in an 8-pin MSOP package. It uses current-mode PWM control for fast transient response and high efficiency across the full load range. Stocked worldwide for portable consumer, automotive, and industrial power applications.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3404IMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5400(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Synchronous step-down topology with integrated high- and low-side switches delivering up to 600 mA output current with minimal external components
- Wide input range of 2.65 V to 6 V covers single-cell Li-ion, 3.3 V, and 5 V rails in portable and automotive systems
- Current-mode PWM control for fast transient response and cycle-by-cycle overcurrent protection
- Compact 8-pin MSOP package (3 mm x 3 mm footprint) enabling space-critical power rail designs in handheld and IoT devices
Applications
The LTC3404IMS8#PBF is used in single-cell Li-ion powered handhelds, wearables, and IoT nodes where a 600 mA synchronous buck regulator must fit within a tight PCB footprint and operate efficiently from 2.65 V to 6 V. Its low dropout characteristic allows the converter to maintain regulation as a Li-ion cell discharges from 4.2 V down to 2.7 V, maximizing battery runtime in portable instruments. The device also suits 5 V USB-powered designs generating a 1.8 V or 3.3 V logic rail for microcontrollers and sensors.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.65V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1650kHz |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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
What is the maximum continuous output current the LTC3404IMS8#PBF can deliver, and at what input voltage does it achieve peak efficiency?
The LTC3404IMS8#PBF is rated for a maximum continuous output current of 600 mA. Peak conversion efficiency typically reaches 90 % to 95 % at moderate loads (100 mA to 300 mA) when the input is 3.6 V and the output is set to 1.8 V or 2.5 V, according to Analog Devices datasheet curves. At full 600 mA load, efficiency remains above 85 % across the 2.65 V to 6 V input range.
How is the output voltage of the LTC3404IMS8#PBF programmed, and what is the minimum achievable output?
Output voltage is set by an external resistor divider connected to the FB pin. The internal reference is 0.8 V, so the minimum programmable output is 0.8 V. Using standard 1 % resistors, designers can program any output from 0.8 V up to the input voltage (maximum 6 V), covering the 1.0 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V rails common in FPGA, DSP, and microcontroller power trees.
Is the LTC3404IMS8#PBF suitable for an automotive application drawing 500 mA at 3.3 V from a 5 V USB supply?
Yes, the LTC3404IMS8#PBF operates from a 5 V USB supply (within its 2.65 V to 6 V input range) and can source 500 mA continuously at 3.3 V output with adequate efficiency. The IMS8 grade extends the operating temperature to -40 °C to +85 °C, which meets most automotive cabin-environment requirements. However, for applications requiring AEC-Q100 qualification or wide 40 V automotive transient immunity, designers should evaluate the LTC3407 or similar automotive-graded alternatives.
What external passive components are required to complete the LTC3404IMS8#PBF power stage?
A typical application requires only 4 external components: one inductor (typically 3.3 µH to 10 µH), one output capacitor (typically 10 µF ceramic), one input bypass capacitor (1 µF to 10 µF ceramic), and two resistors to set the output voltage. The synchronous switches are integrated on-chip, so no external Schottky diode is needed, keeping the total BOM count below 8 parts for a complete 600 mA regulated rail.
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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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