LTC3499BEDD#PBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
Analog Devices LTC3499BEDD#PBF is a 750 mA synchronous step-up DC/DC converter with reverse-battery protection, operating from 1.8V to 5.5V input and providing adjustable 2V to 6V output using current-mode PWM control. Integrated synchronous rectifier improves efficiency for battery-powered portable devices. Ideal for single-cell lithium or alkaline battery boost applications in IoT sensors and wearables.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3499BEDD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.9900(MOQ 1)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 750 mA synchronous step-up with integrated rectifier
- 1.8V to 5.5V input voltage range
- Adjustable 2V to 6V output
- Reverse-battery protection for robust portable designs
- Current-mode PWM control for fast transient response
- Small no-lead DFN package for minimal board area
Applications
The LTC3499BEDD#PBF is designed for single-cell lithium-ion or alkaline battery-powered systems such as wireless sensors, IoT nodes, and medical wearables that require a stable boosted supply rail. Its 750 mA output and 1.8V minimum input voltage ensure continuous operation even as a single AA cell discharges below 2V. Reverse-battery protection prevents damage during battery insertion errors, reducing field return rates in consumer and industrial portable equipment.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1698 |
| YTEOL | 10 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 2 TO 6V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 1.8V |
| Input Voltage-Nom | 2.4V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 6V |
| Output Voltage-Min | 2V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 1400kHz |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
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
How low can the input voltage drop before the LTC3499BEDD#PBF stops regulating its output?
The LTC3499BEDD#PBF continues to regulate its output down to a 1.8V minimum input voltage, allowing it to extract usable energy from a nearly depleted single-cell alkaline or NiMH battery. At 2.4V nominal input the converter delivers the full 750 mA output current with high synchronous rectifier efficiency.
Why is the reverse-battery protection feature of the LTC3499BEDD#PBF important for portable consumer products?
Reverse-battery protection prevents destructive current flow when a battery is inserted backward, which is a common field failure mode in consumer and industrial portable devices. Without this protection a 1.8V to 5.5V rail would expose downstream ICs to reverse polarity, but the LTC3499BEDD#PBF's integrated protection clamps the reverse current, avoiding component damage and costly field returns.
What output voltage range does the LTC3499BEDD#PBF support, and how is the output set?
The LTC3499BEDD#PBF provides an adjustable output from 2V to 6V, programmed with an external resistor divider connected to the feedback pin. This flexibility lets designers target common rails such as 3.3V for logic or 5V for USB-compatible power from a single-cell 2.4V lithium or alkaline source delivering up to 750 mA.
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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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| 3+ | $4.5500 | $13.65 |
| 25+ | $4.1600 | $104.00 |
| 500+ | $3.5500 | $1775.00 |
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