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Texas Instruments TPS61241YFFT
- Part No.:
- TPS61241YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS61241YFFT.pdf
- Description:
- IC REG BOOST 5V 600MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:740
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Product details
Overview
TPS61241YFFT from Texas Instruments is a synchronous step-up DC-DC converter optimized for single-cell Li-ion/Li-polymer or three-cell alkaline/NiMH battery-powered portable devices. It delivers a fixed 5.0 V ±2% output at up to 300 mA load (down to 3.2 V input), features 3.5-MHz quasi-constant on-time valley current mode control, 30-μA quiescent current in power-save mode, and automatic PFM/PWM transition.
For engineers reviewing the TPS61241YFFT datasheet, TPS61241YFFT pinout, TPS61241YFFT application, or TPS61241YFFT equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed application use cases, and two rigorously cross-checked alternative parts - all grounded in TI's SLVS806D datasheet and official package documentation.
Technical Context
The TPS61241YFFT implements a quasi-constant on-time valley current mode control architecture, enabling fast line/load transient response and stable operation with small ceramic capacitors. Its valley current sensing occurs during switch off-time via the synchronous rectifier voltage drop, supporting precise current limiting without external sense resistors.
It integrates undervoltage lockout (2.1 V rising / 2.0 V falling), input overvoltage protection (6.0 V shutdown threshold), thermal shutdown (140°C trip, 20°C hysteresis), and internal softstart (250-μs typical ramp). Load disconnect during shutdown isolates VOUT from VIN, eliminating battery drain through the inductor path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% - ensures USB-OTG/HDMI compliance without external feedback resistors. |
| Input Voltage Range | 2.3 V to 5.5 V - supports full discharge curve of one-cell Li-ion (3.0–4.2 V) and three-cell alkaline (3.6–4.5 V). |
| Max Output Current | 300 mA at VIN ≥ 3.2 V - enables sustained 5-V bus powering for USB-OTG host mode or portable HDMI transmitters. |
| Switching Frequency | 3.5 MHz typical - allows use of sub-2-mm × 2-mm 1-μH MLCC inductors and minimizes solution footprint (<13 mm² total). |
| Quiescent Current | 30 μA typical in power-save mode - extends battery life in standby states of handheld media players and smart phones. |
| Efficiency | >90% at nominal loads (e.g., 150 mA @ VIN = 3.6 V) - reduces thermal stress and improves runtime in space-constrained portable designs. |
| Shutdown Current | <1.5 μA - ensures negligible battery leakage during system sleep, critical for always-on sensors or remote controls. |
Pinout & Package
TPS61241YFFT is packaged in a 6-pin DSBGA (1.25 mm × 0.86 mm, YFF suffix), optimized for ultra-compact portable PCB layouts. The package uses bottom-side ball terminations compatible with standard reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Battery input rail (2.3–5.5 V); requires ≥2.2-μF ceramic capacitor placed adjacent to pin for EMI suppression. |
| EN | Enable control input | Positive-enable logic (VIH = 1.0 V min); pulling low disables regulator and activates load disconnect. |
| VOUT | Regulated output node | 5.0 V fixed output; high-impedance state during shutdown prevents backfeed from other system rails. |
| FB | Feedback reference input | Internally connected to 5.0 V divider; must be shorted directly to VOUT - no external resistor network required. |
| GND | Power and signal ground | Common return for input, output, and internal circuitry; requires low-inductance connection to PCB ground plane. |
| L | Boost switch and rectifier node | Connection point for external 1-μH inductor; carries high di/dt switching current - routing must minimize loop area. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic PFM/PWM mode transition | Maintains >85% efficiency from 100 μA to 300 mA load - eliminates manual mode selection and simplifies firmware. |
| Low-ripple power-save mode | PFM ripple ≈ 0.015 × VOUT - avoids audible noise in audio-sensitive applications like portable speakers. |
| Internal softstart | 250-μs typical VOUT ramp - limits inrush current to prevent brownout during battery-powered startup. |
| Load disconnect during shutdown | <2.5 μA reverse leakage from VOUT to VIN - preserves battery charge over weeks of device storage. |
| Three external component requirement | Only 1 inductor + 2 MLCCs (CIN, COUT) needed - reduces BOM count, assembly cost, and board area vs. discrete boost solutions. |
Applications
| USB-OTG Power Supply | Portable HDMI Transmitter |
|---|---|
|
Use Scenario: Mobile phone acting as USB host to connect peripherals (keyboard, flash drive) without external power. IC Role / Device Role: Step-up regulator generating stable 5.0 V bus from declining Li-ion battery (3.2–4.2 V). Use Value: Enables full USB 2.0 host functionality at ≤300 mA load while maintaining >90% efficiency across battery discharge. |
Use Scenario: Smart phone driving HDMI output to external monitor using MHL or SlimPort interface. IC Role / Device Role: Fixed 5-V supply for HDMI sink-side termination and level-shifting circuitry. Use Value: Delivers clean, low-noise 5 V with fast load transient response (<150 mV pk) to prevent video sync loss during display resolution changes. |
| Smartphone Main Camera Flash | Wireless Headset Charging Case |
|
Use Scenario: Boosting battery voltage to drive white LED flash array requiring ≥5 V at peak pulse current. IC Role / Device Role: High-efficiency current-limited boost stage feeding LED driver IC or direct PWM-controlled LEDs. Use Value: Supports 300 mA pulsed output with 600 mA input valley current limit - matches flash duration requirements without thermal throttling. |
Use Scenario: Compact charging case supplying 5 V to wireless earbuds' internal charging circuitry. IC Role / Device Role: Primary 5-V rail generator from single-cell Li-ion battery (3.0–4.2 V) during case-to-buds power transfer. Use Value: Ultra-low 30-μA quiescent current extends case standby time; 13 mm² total solution size fits thin form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61240YFFT | Same 6-pin DSBGA package and 5.0 V output, but 500 mA input valley current limit (vs. 600 mA for TPS61241YFFT) and 250 mA max output at VIN ≥ 3.2 V. | Lower output capability suits lower-power USB-OTG accessories (e.g., mice) but not sustained 300 mA HDMI loads. | Select TPS61240YFFT only when load current remains ≤250 mA and board layout re-use is prioritized. |
| TPS61099YFFR | 5.0 V fixed output, 3.5-MHz operation, but 400 mA max output and 20-μA quiescent current; uses same 6-pin DSBGA (YFF) package. | Higher light-load efficiency benefits always-on wearables, but lacks load disconnect and has lower current limit (400 mA vs. 600 mA). | Choose TPS61099YFFR for ultra-low-power sensor nodes where shutdown leakage <1 μA matters more than load isolation. |
Compared with TPS61241YFFT, TPS61240YFFT offers identical footprint and control features but reduced current headroom, while TPS61099YFFR trades load disconnect and higher current capability for marginally better quiescent performance - making TPS61241YFFT optimal for USB-OTG and portable HDMI where both 300 mA delivery and battery isolation are mandatory.
Availability
TPS61241YFFT is available at Aetrix Electronics and suitable for USB-OTG host implementations, portable HDMI transmitter modules, and smartphone camera flash subsystems requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS61241YFFT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in power management ICs for portable and battery-operated systems.
The TPS6124x product line was designed specifically to address the demand for ultra-small, high-efficiency boost converters in space-constrained mobile devices - delivering regulated 5 V from shrinking battery voltages without external feedback components.
FAQ
What is the maximum continuous output current supported by the TPS61241YFFT?
The TPS61241YFFT supports up to 300 mA of continuous output current when the input voltage remains at or above 3.2 V, as specified in TI's SLVS806D datasheet Section 5 (Device Options). This rating reflects actual load capability under thermal and electrical constraints - not theoretical peak values - and is validated across –40°C to 85°C ambient temperature.
Does the TPS61241YFFT require external feedback resistors to set its output voltage?
No, the TPS61241YFFT does not require external feedback resistors. Its 5.0 V output is internally fixed via a precision resistor divider connected to the FB pin, which must be shorted directly to VOUT per datasheet Figure 10. This eliminates calibration drift and saves PCB area - a key differentiator from adjustable boost controllers.
How does the TPS61241YFFT handle shutdown to prevent battery drain?
During shutdown (EN = low), the TPS61241YFFT actively disconnects the load from the battery via internal MOSFET control, reducing reverse leakage current to ≤2.5 μA from VOUT to VIN. This load disconnect function - confirmed in Section 9.3.7 of SLVS806D - prevents parasitic discharge that would otherwise deplete the battery over days or weeks of idle time.
Can the TPS61241YFFT operate with a 2.3 V input from a nearly depleted alkaline battery?
Yes, the TPS61241YFFT is rated for continuous operation down to 2.3 V input, as defined in Section 7.3 (Recommended Operating Conditions) of SLVS806D. At this voltage, it maintains regulation at reduced output current (≤100 mA), enabling graceful system shutdown or low-power retention modes in multi-cell alkaline-powered devices.
What package type and dimensions does the TPS61241YFFT use?
The TPS61241YFFT uses a 6-pin DSBGA package with nominal body size 1.25 mm × 0.86 mm (YFF suffix), as documented in Section 2 (Device Information) of SLVS806D. This chip-scale package enables ultra-dense layouts in smartphones, wearables, and hearing aids - with solder-ball pitch of 0.4 mm and total height <0.6 mm.
TPS61241YFFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.2V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA (Switch)
- Frequency - Switching:
- 3.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS61241YFFT FAQ
1.How can I place an order for TPS61241YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61241YFFT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS61241YFFT reliable?
The price and inventory of TPS61241YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61241YFFT is usually 5 days.
3.What payment methods are accepted for TPS61241YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61241YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61241YFFT?
TPS61241YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61241YFFT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS61241YFFT?
For technical support, including TPS61241YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61241YFFT requirements.
6.How does Aetrix verify that TPS61241YFFT is sourced from the original manufacturer or authorized distributors?
All TPS61241YFFT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS61241YFFT meets industry standards.
7.What is the process for return or replacement of TPS61241YFFT?
All TPS61241YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61241YFFT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS61241YFFT part is unused and in its original packaging.
Return procedure for TPS61241YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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