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Texas Instruments TPS65133DPDR
- Part No.:
- TPS65133DPDR
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
TPS65133DPDR.pdf
- Description:
- IC REG AMOLED DISPL 2OUT 12WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,550
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Product details
Overview
TPS65133DPDR from Texas Instruments is a dual-output DC-DC power supply IC generating fixed ±5.0 V rails from 2.9–5.0 V input, delivering up to 250 mA per output with ±1% voltage accuracy and >90% peak efficiency-used in AMOLED display bias and op-amp supply circuits.
For engineers reviewing the TPS65133DPDR datasheet, TPS65133DPDR pinout, TPS65133DPDR application, or TPS65133DPDR equivalent, key selection considerations include independent boost/buck-boost operation, diode-mode regulation near 5 V input, active discharge on shutdown, thermal shutdown at 135°C, and WSON-12 package layout constraints.
Technical Context
The TPS65133DPDR integrates a current-mode synchronous boost converter (VPOS) and a current-mode synchronous inverting buck-boost converter (VNEG), each with independent control logic, soft-start, and short-circuit detection. The boost stage operates at ~1.7 MHz with diode-mode fallback when VI ≈ VPOS; the buck-boost stage starts 2 ms after VPOS regulation.
Both converters feature constant-off-time control, active discharge via internal resistors (15–60 Ω for VPOS, 100–200 Ω for VNEG), and UVLO activation at 2.5 V (rising) / 2.1 V (falling). Thermal shutdown triggers at 135°C (typ), and sequencing ensures VNEG only enables after VPOS reaches regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9 V to 5.0 V - supports single-cell Li-ion and regulated 3.3-V rails without external LDO pre-regulation |
| VPOS Output | +5.0 V ±1% - factory-trimmed, fixed, no external feedback required |
| VNEG Output | −5.0 V ±1% - factory-trimmed, fixed, no external feedback required |
| Max Output Current | 250 mA per rail - enables simultaneous biasing of high-impedance analog front-ends |
| Switching Frequency | 1.2–2.2 MHz (VPOS), 1.0–2.4 MHz (VNEG) - allows compact 4.7-µH inductors and low-profile ceramic capacitors |
| Efficiency | >90% typical at 3.7 V input, 50–200 mA load - minimizes thermal rise in space-constrained portable displays |
| Short-Circuit Response | 3 ms detection delay, then full shutdown - protects downstream circuitry during fault conditions |
Pinout & Package
TPS65133DPDR uses a 12-pin WSON package (3.0 mm × 3.0 mm) with exposed thermal pad connected to GND. Pin assignment follows TI's DPD variant: SWP (boost switch), PGND (boost power ground), VPOS (5 V output), three GND pins (pins 4, 6, 8), AGND (analog ground), EN (enable), VNEG (−5 V output), SWN (buck-boost switch), AVIN (logic supply), PVIN (negative converter supply), plus thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SWP (Pin 1) | Boost converter switch node | Connects to inductor L1 and output capacitor C1; requires low-inductance routing to minimize EMI |
| PGND (Pin 2) | Boost power ground return | Must be isolated from AGND until joined at single-point GND to avoid noise coupling into analog sections |
| VPOS (Pin 3) | +5 V regulated output | Supplies positive rail for AMOLED source drivers or op-amp VCC; place C2 (10 µF) within 2 mm |
| GND (Pins 4, 6, 8) | Power/ground reference | Multiple GND pins reduce impedance; connect all to thermal pad and internal ground plane |
| AGND (Pin 5) | Analog ground reference | Separate from PGND until star-point connection; critical for VREF stability and output accuracy |
| EN (Pin 7) | Enable control input | Active-high logic; pulls device into shutdown mode (<15 µA quiescent) when low |
| VNEG (Pin 9) | −5 V regulated output | Supplies negative rail for op-amp VEE or sensor bias; place C3 (10 µF) adjacent to pin |
| SWN (Pin 10) | Inverting buck-boost switch node | Connects to L2 and C3; switching node transitions between PVIN and GND |
| AVIN (Pin 11) | Internal logic supply | Bypass with 100 nF (C4) close to pin; powers control circuitry and bandgap reference |
| PVIN (Pin 12) | Negative converter input supply | Shared with VI; place bulk capacitor C1 (10 µF) directly at this pin for low-ESR path |
Key Features
| Feature | Design Value |
|---|---|
| Independent converter operation | Enables 100% mismatch between VPOS and VNEG loads - supports asymmetric analog signal chains |
| Diode-mode regulation | Maintains VPOS regulation when VI ≥ 4.8 V by disabling synchronous rectifier - avoids dropout in battery-end-of-life scenarios |
| Active discharge on disable | Discharges both outputs to GND via internal resistors (15–60 Ω for VPOS, 100–200 Ω for VNEG) - prevents floating rails during power-down sequencing |
| Integrated sequencing logic | VNEG starts 2 ms after VPOS reaches regulation - eliminates cross-rail transient coupling in precision analog systems |
| Thermal shutdown with hysteresis | Shuts down at 135°C (typ), resumes only after junction cools below ~120°C - prevents thermal runaway in sealed enclosures |
Applications
| AMOLED Display Bias | Operational Amplifier Supplies |
|---|---|
Use Scenario: Powering gate/source driver ICs and pixel compensation circuits in foldable smartphone displays. IC Role / Device Role / Timing Role: Dual-rail generator providing stable ±5 V for high-voltage OLED pixel addressing and data line biasing. Use Value: ±1% output accuracy ensures consistent luminance across panels; >90% efficiency extends battery life during video playback. |
Use Scenario: Supplying dual rails to rail-to-rail input/output op-amps in portable medical sensors and audio front-ends. IC Role / Device Role / Timing Role: Compact ±5 V source enabling wide dynamic range and low-noise amplification without discrete charge pumps. Use Value: Independent converter operation accommodates unbalanced loads (e.g., 200 mA on VPOS, 50 mA on VNEG); fast transient response maintains signal integrity. |
| Headphone Amplifier Supplies | Sensor Front-End Supplies |
Use Scenario: Generating clean ±5 V for Class-AB headphone amplifiers in wireless earbuds with integrated DACs. IC Role / Device Role / Timing Role: Low-noise dual-output regulator operating in CCM to minimize switching artifacts in audio band. Use Value: Diode-mode capability sustains regulation as Li-ion voltage drops from 4.2 V to 3.4 V; active discharge prevents pop/click during pause/resume. |
Use Scenario: Biasing MEMS accelerometers, gyroscopes, and precision ADC reference buffers in industrial IoT nodes. IC Role / Device Role / Timing Role: Fixed ±5 V supply ensuring accurate sensor excitation and analog signal conditioning over temperature. Use Value: ±1% voltage accuracy preserves measurement linearity; thermal shutdown protects against enclosure overheating during continuous sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output DC-DC power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65132DPDR | Same WSON-12 package, but ±3.3 V outputs (not ±5 V); 200 mA max per rail | Targeted at low-voltage logic and interface ICs requiring ±3.3 V, not analog front-ends needing ±5 V headroom | Select only if system voltage rails match ±3.3 V specification and load current ≤200 mA |
| MAX17504ATP+T | Adjustable ±5 V outputs via external resistors; 500 mA per rail; requires external compensation | Supports programmable voltages and higher currents but increases BOM count and layout complexity | Choose when design requires flexibility beyond fixed ±5 V or needs >250 mA per rail |
Compared with TPS65133DPDR, TPS65132DPDR offers lower output voltage and reduced current capability, making it unsuitable for ±5 V analog biasing; MAX17504ATP+T provides design flexibility and higher current but sacrifices integration and ease of use in space-constrained portable designs.
Availability
TPS65133DPDR is available at Aetrix Electronics and suitable for AMOLED display modules, portable medical sensors, and headphone amplifier designs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS65133DPDR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for portable and industrial applications.
The TPS65133DPDR belongs to TI's dual-output DC-DC converter product line, designed specifically for compact, high-accuracy ±5 V bias generation in display and precision analog systems where board space and thermal performance are critical.
FAQ
What is the input voltage range supported by the TPS65133DPDR?
The TPS65133DPDR supports an input voltage range of 2.9 V to 5.0 V, optimized for single-cell lithium-ion batteries and regulated 3.3-V supply rails. Operation below 2.9 V is possible but not guaranteed per specifications, and undervoltage lockout activates at 2.1 V (falling) and 2.5 V (rising).
Does the TPS65133DPDR require external feedback resistors to set output voltage?
No, the TPS65133DPDR does not require external feedback resistors. Its +5.0 V and −5.0 V outputs are factory-programmed with ±1% accuracy and fixed internally - eliminating component count and layout sensitivity associated with resistor dividers.
How does the TPS65133DPDR handle startup sequencing between VPOS and VNEG?
The TPS65133DPDR enforces strict sequencing: the boost converter (VPOS) starts immediately upon enable, and the inverting buck-boost converter (VNEG) begins ramping only after VPOS reaches regulation - with a fixed 2-ms delay. This prevents cross-rail transients and ensures stable biasing in sensitive analog circuits.
What protection features are integrated into the TPS65133DPDR?
The TPS65133DPDR integrates short-circuit protection (3 ms detection delay), thermal shutdown (135°C typical), undervoltage lockout, and active discharge on disable. Both outputs shut down simultaneously during faults, and active discharge uses internal resistors (15–60 Ω for VPOS, 100–200 Ω for VNEG) to safely collapse rail voltages.
Can the TPS65133DPDR operate efficiently when input voltage approaches 5.0 V?
Yes, the TPS65133DPDR enters "diode mode" when input voltage approaches 5.0 V, disabling synchronous rectification and using the MOSFET body diode for regulation. While efficiency decreases slightly in this mode, it maintains ±1% VPOS accuracy - critical for maintaining display contrast and analog signal fidelity near battery end-of-life.
TPS65133DPDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Converter, AMOLED Display
- Voltage - Input:
- 2.9V ~ 5V
- Number of Outputs:
- 2
- Voltage - Output:
- 5V, -5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WSON (3x3)
TPS65133DPDR FAQ
1.How can I place an order for TPS65133DPDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS65133DPDR 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 TPS65133DPDR reliable?
The price and inventory of TPS65133DPDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65133DPDR is usually 5 days.
3.What payment methods are accepted for TPS65133DPDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65133DPDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS65133DPDR?
TPS65133DPDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS65133DPDR 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 TPS65133DPDR?
For technical support, including TPS65133DPDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65133DPDR requirements.
6.How does Aetrix verify that TPS65133DPDR is sourced from the original manufacturer or authorized distributors?
All TPS65133DPDR 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 TPS65133DPDR meets industry standards.
7.What is the process for return or replacement of TPS65133DPDR?
All TPS65133DPDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS65133DPDR, 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 TPS65133DPDR part is unused and in its original packaging.
Return procedure for TPS65133DPDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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