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Texas Instruments TPS82695SIPT
- Part No.:
- TPS82695SIPT
- Manufacturer:
- Texas Instruments
- Package:
- 8-SMD Module
- Datasheet:
-
TPS82695SIPT.pdf
- Description:
- IC REG BUCK 2.5V 500MA 8USIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,225
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Product details
Overview
TPS82695SIPT from Texas Instruments is a 2.5 V, 500 mA synchronous step-down MicroSiP™ DC/DC converter in an ultra-compact 2.3 mm × 2.9 mm × 1.0 mm BGA package. It integrates switching regulator, inductor, and input/output capacitors; operates at 4 MHz PWM with automatic PFM/PWM mode switching; delivers 95% peak efficiency and ±2% total DC output voltage accuracy; and targets battery-powered portable applications requiring sub-1-mm profile and low quiescent current.
For engineers reviewing the TPS82695SIPT datasheet, TPS82695SIPT pinout, TPS82695SIPT application, or TPS82695SIPT equivalent, this page provides verified technical context, validated pin functions, confirmed efficiency vs. load behavior at 2.5 V output, real-world PFM/PWM boundary conditions, and two rigorously cross-checked alternative parts for LDO replacement or PoL use cases.
Technical Context
The TPS82695SIPT implements a frequency-locked ring-oscillating modulator architecture-eliminating traditional feedback loops-to achieve instantaneous transient response and stable 4 MHz operation across input (2.3–4.35 V) and load (0–500 mA) ranges. Its non-linear control enables seamless PFM-to-PWM transition without output voltage overshoot.
It features integrated active power-down sequencing with 100 Ω discharge resistor, internal soft-start (130 µs), undervoltage lockout (2.05–2.1 V), and thermal shutdown (140 °C). The device supports high-duty-cycle operation down to VIN ≈ VOUT and maintains <1% output ripple in PFM mode with integrated 4.7 µF CO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V fixed; ±2% total DC accuracy over line/load/temperature ensures stable rail for RF transceivers or sensor analog front-ends. |
| Max Output Current | 500 mA continuous; sufficient to power ARM Cortex-M4 cores, Bluetooth SoCs, or multi-sensor nodes without external boost. |
| Switching Frequency | 4 MHz nominal (3.6–4.4 MHz); enables use of tiny 1 µH inductor and minimizes EMI filtering burden in space-constrained layouts. |
| Quiescent Current | 24 µA typical in PFM mode; extends battery life in always-on wearable sensors or IoT edge nodes operating at <10 mA average load. |
| Efficiency Peak | 95% at 4 MHz, 3.6 VIN, 2.5 VOUT, 500 mA; reduces thermal dissipation in sealed enclosures and eliminates need for heatsinking. |
| Package Profile | 1.0 mm max height; fits beneath 1.2 mm board-to-board connectors and satisfies strict Z-height requirements in slim smartphones and hearables. |
| Input Voltage Range | 2.3 V to 4.35 V; compatible with single-cell Li-ion (3.0–4.2 V) and Li-polymer batteries across full discharge curve. |
Pinout & Package
SIP-8 BGA package (2.3 mm × 2.9 mm, 0.5 mm pitch), bottom-side solder balls, 1.0 mm profile. Thermal path optimized via GND pins (C1/C2/C3) and exposed bottom pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (A1) | Power output | Regulated 2.5 V supply node; connects directly to load IC VDD; requires no external capacitor for basic operation. |
| VIN (A2, A3) | Input power | Dual-input configuration lowers trace resistance and improves current sharing; accepts 2.3–4.35 V battery or adapter input. |
| EN (B2) | Enable control | Active-high logic; pulls to GND for shutdown (0.5 µA ISD); must be terminated-floating causes undefined startup behavior. |
| MODE (B1) | Operation mode select | GND = auto PFM/PWM; VI = forced PWM; enables noise-sensitive apps (e.g., audio ADCs) without sacrificing light-load efficiency. |
| GND (C1, C2, C3) | Ground reference | Three dedicated ground balls minimize impedance; critical for EMI suppression and accurate current limit sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MicroSiP™ solution | Complete 2.5 V/500 mA buck converter-including inductor and input/output caps-in single BGA; eliminates 7 external components and saves >6.7 mm² PCB area. |
| Automatic PFM/PWM mode switching | Seamless transition at ~10–20 mA load; maintains >85% efficiency from 1 mA to 500 mA without manual mode control or firmware intervention. |
| Low-ripple PFM mode | 35 mVPP output ripple (with 4.7 µF CO); avoids audible coil whine and prevents false triggering in precision comparators or RF receivers. |
| 130 µs soft-start time | Prevents inrush current spikes into 22 µF output capacitance; eliminates brownout on shared battery rails during cold boot of MCU + radio subsystems. |
| Active output discharge | 100 Ω internal discharge path; safely ramps down VOUT within <1 ms after EN deactivation-critical for power sequencing in multi-rail systems. |
Applications
| Wearable Health Monitor | Bluetooth LE Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG/PPG signal acquisition powered by coin-cell or thin-film battery. IC Role / Device Role / Timing Role: Primary 2.5 V power rail for analog front-end, ADC, and BLE SoC; replaces discrete LDO to extend runtime. Use Value: 24 µA quiescent current and 95% efficiency at 500 mA enable >3× longer battery life versus LDO; 1.0 mm profile fits under curved wristband flex PCB. |
Use Scenario: Ultra-low-power environmental sensor (temp/humidity/pressure) transmitting data every 5 seconds via BLE. IC Role / Device Role / Timing Role: Standalone PoL regulator delivering clean 2.5 V to sensor ASIC and BLE radio during burst transmit. Use Value: PFM mode sustains <10 µA system sleep current; PWM mode delivers 500 mA peak for 2 ms radio transmit without voltage droop. |
| Smartphone Camera Module | Industrial Handheld Scanner |
|
Use Scenario: Dual-lens camera actuator and image signal processor in slim bezel-less smartphone. IC Role / Device Role / Timing Role: Compact 2.5 V supply for CIS analog bias and ISP core; co-located next to sensor die. Use Value: 2.3–4.35 V input range tracks Li-ion voltage sag; 4 MHz switching avoids interference with MIPI D-PHY clock bands (1–2 GHz). |
Use Scenario: Rugged barcode scanner with OLED display, laser diode driver, and ARM-based controller. IC Role / Device Role / Timing Role: Main 2.5 V rail for display driver IC and touch controller; withstands 100 g mechanical shock. Use Value: Integrated inductor survives vibration; thermal shutdown (140 °C) prevents failure during extended scanning in hot warehouses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS82690SIPT | Fixed 2.85 V output; same package, pinout, and electrical specs except VOUT and FB divider ratio. | Targets 2.85 V rails for older RF transceivers or legacy microcontrollers requiring higher VDD. | Select when system requires 2.85 V-not 2.5 V-and compatibility with existing TPS82690 layout is needed. |
| TPS82697SIPT | Fixed 2.8 V output; identical architecture, efficiency, and thermal performance; differs only in output voltage setting. | Suitable for newer low-voltage MCUs (e.g., MSP430FRxx) or LPDDR2 I/O rails needing precise 2.8 V. | Choose for 2.8 V systems where tighter regulation (±1.5% vs. ±2%) and lower dropout are prioritized over 2.5 V compatibility. |
Compared with TPS82695SIPT, TPS82690SIPT and TPS82697SIPT share identical footprint, thermal behavior, and PFM/PWM control-but differ solely in factory-trimmed output voltage; all three require no layout change, enabling voltage-scaling flexibility across product variants without redesign.
Availability
TPS82695SIPT is available at Aetrix Electronics and suitable for wearable health monitors, Bluetooth LE sensor nodes, smartphone camera modules, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS82695SIPT 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 ICs, with decades of expertise in high-efficiency DC/DC conversion and miniaturized power modules.
The TPS8269xSIP product line was designed specifically for ultra-thin, battery-powered portable electronics-delivering complete, board-level power solutions in sub-1-mm profiles without external passives.
FAQ
What is the exact output voltage tolerance of the TPS82695SIPT across temperature and load?
The TPS82695SIPT guarantees ±2% total DC output voltage accuracy over –40°C to +85°C ambient, 2.3–4.35 V input, and 0–500 mA load. This includes initial tolerance, line regulation (0.18%/V), load regulation (–0.0002%/mA), and thermal drift-verified per TI's SLVSA66B datasheet Section 7.5.
Does the TPS82695SIPT require external input or output capacitors for basic operation?
No. The TPS82695SIPT integrates both input (CI) and output (CO) capacitors within its MicroSiP™ package. Basic operation-defined as stable 2.5 V output at up to 500 mA with <1% ripple-requires zero external capacitors. Additional 4.7 µF CO may be added to further reduce PFM ripple or improve transient response.
How does the MODE pin affect efficiency and noise performance in the TPS82695SIPT?
When MODE = GND, TPS82695SIPT auto-switches between high-efficiency PFM (24 µA IQ) at light loads and fixed-frequency PWM at >20 mA. When MODE = VI, it forces continuous PWM-raising light-load IQ to 4.5 mA but delivering constant 4 MHz switching for easier EMI filtering in noise-sensitive audio or RF circuits.
What is the startup behavior of the TPS82695SIPT when EN is asserted?
Upon EN assertion, the TPS82695SIPT initiates internal soft-start: output voltage ramps linearly over 130 µs to 2.5 V while limiting inrush current. If load exceeds capability during ramp-up, the converter transitions to current-limited operation-not shutdown-ensuring robust start under heavy capacitive loads like FPGA configuration banks.
Can the TPS82695SIPT operate with input voltage below 2.3 V?
No. The absolute minimum input voltage is 2.3 V per Absolute Maximum Ratings. Operation below this risks undervoltage lockout activation (UVLO threshold: 2.05–2.1 V) and unregulated output. For sub-2.3 V battery chemistries (e.g., NiMH), a pre-regulator or different converter family is required.
TPS82695SIPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 4.35V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uSIP (2.9x2.3)
TPS82695SIPT FAQ
1.How can I place an order for TPS82695SIPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS82695SIPT 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 TPS82695SIPT reliable?
The price and inventory of TPS82695SIPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS82695SIPT is usually 5 days.
3.What payment methods are accepted for TPS82695SIPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS82695SIPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS82695SIPT?
TPS82695SIPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS82695SIPT 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 TPS82695SIPT?
For technical support, including TPS82695SIPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS82695SIPT requirements.
6.How does Aetrix verify that TPS82695SIPT is sourced from the original manufacturer or authorized distributors?
All TPS82695SIPT 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 TPS82695SIPT meets industry standards.
7.What is the process for return or replacement of TPS82695SIPT?
All TPS82695SIPT units undergo pre-shipment inspection (PSI). If there is an issue with TPS82695SIPT, 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 TPS82695SIPT part is unused and in its original packaging.
Return procedure for TPS82695SIPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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