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Texas Instruments TPS61240YFFT
- Part No.:
- TPS61240YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS61240YFFT.pdf
- Description:
- IC REG BOOST 5V 500MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:627
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Product details
Overview
TPS61240YFFT 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 with up to 200 mA continuous load current, 90%+ efficiency at nominal conditions, and operates from 2.3 V to 5.5 V input. It is used in USB-OTG and portable HDMI power rails where compact size and low quiescent current are critical.
For engineers reviewing the TPS61240YFFT datasheet, TPS61240YFFT pinout, TPS61240YFFT application, or TPS61240YFFT equivalent, key selection criteria include its 3.5-MHz quasi-constant on-time valley current mode control, 30-μA quiescent current in power-save mode, load disconnect during shutdown, and compatibility with 1.0–2.2 μH inductors and ceramic capacitors for sub-13 mm² total solution size.
Technical Context
The TPS61240YFFT implements a quasi-constant on-time valley current mode control architecture that enables fast line and load transient response without external compensation. Its internal 5-V reference and fixed resistor divider set precise output regulation, while valley current sensing ensures accurate overcurrent protection at 500 mA input limit.
It supports automatic PFM/PWM mode transition: PWM dominates above ~10 mA load for stable ripple and tight regulation; PFM engages below that threshold to maintain >85% efficiency at 100 μA loads. The device integrates soft-start (250 μs typical), undervoltage lockout (2.1 V rising, 2.0 V falling), and thermal shutdown (140°C) with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% - eliminates need for external feedback resistors and ensures USB-OTG/HDMI compliance. |
| 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 | 200 mA continuous - verified at VIN ≥ 3.2 V; sufficient for USB-OTG host mode and HDMI sink power. |
| Switching Frequency | 3.5 MHz typical - enables use of 1.0–2.2 μH inductors and 0402/0603 ceramic capacitors for ultra-compact layout. |
| Quiescent Current | 30 μA typical in power-save mode - extends battery life in standby states of portable media players and smartphones. |
| Shutdown Current | 1.5 μA - ensures near-zero battery drain when EN = GND, critical for always-on system rails. |
| Efficiency | >90% at 100 mA, VIN = 3.6 V - minimizes thermal rise in sealed handheld enclosures. |
| Load Disconnect | Active during shutdown - prevents reverse current flow from VOUT to VIN, eliminating need for external blocking FET. |
Pinout & Package
TPS61240YFFT is packaged in a 6-pin DSBGA (YFF) with 1.25 mm × 0.86 mm body size and 0.4-mm pitch. The package supports solder paste volume control for reliable assembly in high-volume portable manufacturing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Positive logic: high ≥1.0 V enables regulation; low ≤0.4 V forces shutdown with <2 μA supply current. |
| FB | Feedback input | Internally connected to 5-V reference; must be tied directly to VOUT for fixed-output operation. |
| GND | Power and signal ground | Single ground plane required; connects to both power stage and control circuitry for noise immunity. |
| L | Inductor switch node | Connects to boost inductor; carries high di/dt switching current - requires short, low-inductance trace routing. |
| VIN | Input supply | Accepts battery or source between 2.3 V and 5.5 V; decoupled with 2.2 μF ceramic capacitor placed adjacent to pin. |
| VOUT | Regulated output | Delivers 5.0 V ±2% to load; presents high impedance during shutdown to allow back-driving by alternate supplies. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic PFM/PWM mode transition | Enables >85% efficiency at 100 μA load while maintaining <20 mVpp ripple at 150 mA - no mode-selection pins or configuration required. |
| Internal soft-start | Ramps VOUT from 5% to 5.0 V in 250 μs - limits inrush current and avoids input voltage sag on weak battery sources. |
| Load disconnect during shutdown | Removes VOUT from VIN path via integrated switches - eliminates external reverse-blocking MOSFET and saves PCB area. |
| Low-ripple power save mode | Maintains <0.015 × VOUT output ripple in PFM - avoids audible noise in audio-sensitive applications like portable media players. |
| Three external components | Requires only one MLCC inductor (1.0 μH), one input cap (2.2 μF), and one output cap (4.7 μF) - reduces BOM count and assembly cost. |
Applications
| USB-OTG Power Supply | Portable HDMI Sink |
|---|---|
Use Scenario: Powers USB On-The-Go host functionality (e.g., smartphone acting as USB host for flash drives or keyboards) from internal battery. IC Role / Device Role / Timing Role: Step-up regulator providing stable 5.0 V ±2% at up to 200 mA with fast load transient response to handle plug-in events. Use Value: Eliminates need for separate USB PHY power rail; meets USB 2.0 voltage tolerance (4.4–5.25 V) across full battery range. | Use Scenario: Supplies regulated 5 V to HDMI sink-side circuitry (e.g., level shifters, EDID EEPROM) in portable projectors or tablets. IC Role / Device Role / Timing Role: Fixed-output boost converter delivering low-noise 5 V with <20 mVpp ripple in PWM mode and load disconnect during system sleep. Use Value: Enables HDMI hot-plug detection and EDID communication without battery drain during display-off states. |
| Smartphone Baseband Core | Digital Camera Flash LED Driver Bias |
Use Scenario: Generates auxiliary 5 V rail for baseband processor peripherals (e.g., RF transceiver bias, SIM card interface) in space-constrained smartphones. IC Role / Device Role / Timing Role: High-efficiency, small-footprint DC-DC converter operating from main Li-ion battery with 3.5-MHz switching to avoid AM radio band interference. Use Value: Achieves >90% efficiency at 100 mA while fitting within 13 mm² footprint - preserves PCB real estate for antenna and camera modules. | Use Scenario: Provides stable 5 V bias to flash LED driver ICs (e.g., TI LM3644) during photo capture sequences in compact digital cameras. IC Role / Device Role / Timing Role: Fast-transient boost regulator supporting pulsed 150–200 mA loads with <150 mVpk overshoot/undershoot during 50–200 mA load steps. Use Value: Ensures consistent flash brightness by maintaining VOUT within ±2% during rapid LED current modulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61241YFFT | Higher 600 mA input valley current limit vs. 500 mA; same 5 V output, package, and pinout. | Supports up to 300 mA output at VIN ≥ 3.2 V - suitable for higher-current USB-OTG or dual-display HDMI systems. | Select TPS61241YFFT when sustained >200 mA load current is required; otherwise TPS61240YFFT offers optimal cost/performance for 200 mA-class applications. |
| MAX8642YETA+ | Fixed 5 V output, 2.7–5.5 V input, 300 mA max, but uses current-mode PWM only (no PFM); 2.5 MHz switching. | Lacks automatic PFM mode and load disconnect - requires external reverse-blocking FET and exhibits higher light-load quiescent current (~65 μA). | Choose MAX8642YETA+ only if strict 2.5 MHz EMI profile is mandated; TPS61240YFFT provides superior light-load efficiency and integrated safety features. |
Compared with TPS61241YFFT, the TPS61240YFFT trades 100 mA output capability for lower input current limit and marginally reduced thermal stress in compact layouts; versus MAX8642YETA+, it delivers 55% lower quiescent current and eliminates two external components - reducing total solution size and BOM cost.
Availability
TPS61240YFFT is available at Aetrix Electronics and suitable for USB-OTG power supplies, portable HDMI interfaces, and smartphone auxiliary rail generation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS61240YFFT 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 power management technologies, with decades of expertise in high-efficiency DC-DC conversion.
The TPS6124x product line was designed specifically for ultra-compact, battery-powered portable electronics requiring fixed 5-V output, minimal external components, and robust protection features - targeting mobile phones, PDAs, and portable media players.
FAQ
What is the exact output voltage tolerance of the TPS61240YFFT?
The TPS61240YFFT delivers a fixed 5.0 V output with ±2% DC accuracy over full operating conditions (–40°C to +85°C ambient, 2.3 V to 5.5 V input, 0–200 mA load). This is guaranteed by internal trimming of the feedback divider and reference, eliminating need for external resistor calibration. The TPS61240YFFT maintains this tolerance without load-dependent drift or temperature-induced deviation beyond spec limits.
Does the TPS61240YFFT require external feedback resistors?
No, the TPS61240YFFT does not require external feedback resistors. Its output voltage is factory-trimmed to 5.0 V using an internal resistor divider connected to the FB pin. The FB pin must be connected directly to the VOUT node for proper regulation - no external components are needed. This simplifies design, improves reliability, and reduces solution size compared to adjustable boost converters requiring precision resistor networks.
How does the TPS61240YFFT achieve load disconnect during shutdown?
The TPS61240YFFT achieves load disconnect during shutdown through integrated NMOS switches that isolate the VOUT pin from both the inductor (L) and input (VIN) paths when EN is pulled low. This creates a high-impedance state at VOUT, preventing reverse current flow from external supplies or capacitive hold-up into the battery. Unlike discrete solutions, this feature requires no external MOSFETs or control logic - it is inherent to the TPS61240YFFT's power stage architecture.
What inductor value is recommended for the TPS61240YFFT?
Texas Instruments recommends a 1.0 μH shielded multilayer ceramic inductor (e.g., TOKO MDT2012-CH1R0AN) for the TPS61240YFFT. The device is optimized for 1.0–2.2 μH inductance values, balancing peak current handling, efficiency, and physical size. A 1.0 μH inductor supports full 200 mA output at minimum 2.3 V input while enabling the smallest possible solution footprint (<13 mm²) and minimizing EMI due to the 3.5-MHz switching frequency.
Can the TPS61240YFFT operate with input voltages below 2.3 V?
No, the TPS61240YFFT cannot operate reliably below 2.3 V input. Its absolute minimum input voltage is 2.3 V per datasheet specifications, and undervoltage lockout (UVLO) disables regulation when VIN falls below ~2.0 V (falling threshold). Attempting to operate below 2.3 V risks failure to start, unstable output, or excessive dropout - especially under load. For sub-2.3 V battery chemistries, consider the TPS6109x family or other ultra-low-VIN boost converters.
TPS61240YFFT 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):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA (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
TPS61240YFFT FAQ
1.How can I place an order for TPS61240YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61240YFFT 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 TPS61240YFFT reliable?
The price and inventory of TPS61240YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61240YFFT is usually 5 days.
3.What payment methods are accepted for TPS61240YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61240YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61240YFFT?
TPS61240YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61240YFFT 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 TPS61240YFFT?
For technical support, including TPS61240YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61240YFFT requirements.
6.How does Aetrix verify that TPS61240YFFT is sourced from the original manufacturer or authorized distributors?
All TPS61240YFFT 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 TPS61240YFFT meets industry standards.
7.What is the process for return or replacement of TPS61240YFFT?
All TPS61240YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61240YFFT, 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 TPS61240YFFT part is unused and in its original packaging.
Return procedure for TPS61240YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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