LM3205TL Texas Instruments Integrated Circuit (Other) In Stock
The LM3205TL is an adjustable current-mode PWM step-down DC-DC converter by Texas Instruments accepting 2.7V to 5.5V input and providing 0.8V to 3.6V output. It uses a compact 8-ball PBGA package suited for space-constrained mobile and portable designs. Available lead-free with worldwide distribution and competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM3205TL Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -30.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable 0.8V to 3.6V output voltage from a 2.7V to 5.5V input for flexible power rail configuration
- Current-mode PWM control delivers fast transient response and inherent current limiting for portable applications
- Compact 8-ball PBGA package enables ultra-small PCB footprint in mobile and handheld device designs
- Wide input range of 2.7V to 5.5V compatible with single-cell Li-ion and USB power sources
Applications
The LM3205TL is designed for portable electronics, smartphones, and IoT devices that need to step down a Li-ion cell or USB input (2.7V to 5.5V) to a stable core voltage between 0.8V and 3.6V. Its current-mode PWM architecture provides fast load transient response, making it suitable for powering application processors, DSPs, and memory in battery-powered designs. The PBGA package allows integration in thin consumer devices where PCB area and component height are tightly constrained.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | ALSO HAS VARIABLE OUTPUT VOLTAGE FROM 0.8V TO 3.6V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PBGA-B8 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Output Voltage-Max | 3.6V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA8,3X3,20 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2300kHz |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | TIN SILVER COPPER |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3205TL:
Switching Regulator, Current-mode, 0.65A, 2000kHz Switching Freq-Max, PBGA8
Frequently Asked Questions
What input and output voltage ranges does the LM3205TL support in portable power designs?
The LM3205TL accepts input voltages from 2.7V to 5.5V and provides an adjustable output from 0.8V to 3.6V, covering common processor core and I/O rail voltages. This range is compatible with single-cell Li-ion batteries (2.7V to 4.2V) and 5V USB power inputs, making it versatile for smartphones, tablets, and IoT sensor nodes.
How does current-mode PWM control in the LM3205TL benefit portable device power rails?
Current-mode PWM control inherently limits peak inductor current cycle-by-cycle, providing fast short-circuit protection without additional circuitry. It also improves transient response when processor load current changes suddenly, maintaining output voltage regulation within tens of millivolts during load steps—critical for stable operation of application processors and RF transceivers in battery-powered devices.
Which battery-powered or mobile applications are best suited for the LM3205TL step-down converter?
The LM3205TL suits smartphones, portable media players, wireless sensors, and wearable devices powered by a Li-ion cell or USB bus. Its 0.8V to 3.6V adjustable output covers LPDDR memory rails (1.2V to 1.8V) and processor core voltages (0.9V to 1.2V), enabling efficient power delivery across multiple supply rails from a single converter in compact designs.
What package does the LM3205TL use and how does it affect PCB layout in thin devices?
The LM3205TL is housed in an 8-ball PBGA package with a very small footprint, reducing the converter's PCB area to under 4 mm² including the IC body. This enables placement alongside other power components in high-density mobile PCB layouts. Designers should keep the switching node trace short and the output capacitor within 3 mm of the output pin to minimize EMI and voltage ripple.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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