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Texas Instruments TPS61202DRCR
- Part No.:
- TPS61202DRCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61202DRCR.pdf
- Description:
- IC REG BOOST 5V 1.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,704
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Product details
Overview
TPS61202DRCR from Texas Instruments is a fixed-output 5-V synchronous boost converter IC designed for single-cell Li-ion, alkaline, NiMH, or fuel/solar-powered systems. It operates from 0.3 V to 5.5 V input, delivers up to 600 mA at 5 V (VIN ≥3 V), features automatic boost/down-conversion mode transition, and integrates 1.3-A synchronous switches in a 3 mm × 3 mm VSON-10 package.
For engineers reviewing the TPS61202DRCR datasheet, TPS61202DRCR pinout, TPS61202DRCR application, or TPS61202DRCR equivalent, key selection considerations include its 5-V fixed output, 0.3-V startup capability, Power Save mode control via PS pin, undervoltage lockout programmability, and thermal shutdown with hysteresis - all critical for battery-constrained portable electronics design.
Technical Context
The TPS61202DRCR implements an average current-mode PWM controller with input/output voltage feedforward for fast transient response. Its three-NMOS synchronous topology enables high efficiency across wide VIN–VOUT ratios and supports automatic transition between boost and down-conversion modes when VIN ≥ VOUT.
It uses dual ground architecture (GND for control logic, PGND for power switches) to minimize ground shift, incorporates soft-start with pre-bias capability, and enforces average inductor current limiting (1200–1500 mA) plus overtemperature protection with 20°C hysteresis - ensuring robust operation under short-circuit, low-input, and thermal stress conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.95–5.05 V - ensures stable 5-V rail for USB-peripheral, MCU, or sensor interfaces without external feedback resistors. |
| Input Voltage Range | 0.3 V to 5.5 V - supports startup from deeply discharged single-cell batteries (e.g., 0.5-V Li-ion cutoff) and compatibility with fuel/solar harvesters. |
| Switch Current Limit | 1200–1500 mA average - limits peak inductor current to protect internal MOSFETs and maintain regulation under heavy load or low VIN. |
| Quiescent Current | 50–70 μA (PS = Low) - minimizes battery drain in always-on portable devices during light-load standby. |
| Switching Frequency | 1250–1650 kHz - enables use of small external inductors (e.g., 2.2 μH) and ceramic capacitors while avoiding AM radio band interference. |
| UVLO Threshold | Falling: 235–265 mV; Rising: 330–370 mV - allows precise battery voltage monitoring via external resistor divider on UVLO pin. |
| Thermal Shutdown | 140°C activation with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
TPS61202DRCR is housed in a thermally enhanced 3 mm × 3 mm VSON-10 package with exposed thermal pad (soldered to PGND). The package supports high-power density layouts and efficient heat dissipation in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VAUX | Auxiliary supply output | Provides regulated ~2.5 V to charge internal control circuitry before VOUT ramp-up; must be decoupled with 0.1 μF capacitor. |
| VIN | Main input supply | Accepts 0.3–5.5 V source; connects to battery or energy harvester; requires local 10-μF ceramic input capacitor. |
| EN | Enable control input | Active-high logic input (VIH = 1.2 V min); disables converter and disconnects load from input when low. |
| UVLO | Undervoltage monitor input | Monitors system voltage via external resistor divider; triggers shutdown if voltage drops below programmed threshold. |
| PS | Power Save mode control | Active-low input (VIL = 0.4 V max); enables variable-frequency light-load operation when pulled low. |
| GND | Control ground reference | Reference node for all logic and analog circuits; must connect to PGND at single point near device. |
| PGND | Power ground return | High-current return path for switches and inductor; isolated from GND to prevent noise coupling into control loop. |
| FB | Feedback input | Internally tied to VOUT for fixed-output versions; not used externally - simplifies layout and reduces BOM count. |
| L | Inductor connection | Drives external 2.2-μH inductor; carries pulsed current up to 1.5 A; requires low-ESR routing and thermal relief. |
| VOUT | Regulated output | Delivers stable 5-V output; requires 10-μF ceramic output capacitor and optional 0.1-μF high-frequency bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Boost/Down Conversion | Seamlessly transitions to down-regulation when VIN ≥ VOUT (e.g., 4.2-V Li-ion → 5-V rail), eliminating need for separate LDO in hybrid power architectures. |
| 0.5-V Startup Capability | Enables operation from severely depleted batteries or ultra-low-voltage energy harvesters without external wake-up circuitry. |
| Load Disconnect During Shutdown | Completely isolates VOUT from VIN when EN = low - prevents battery drain through parasitic loads or reverse current paths. |
| Synchronous 3-Switch Topology | Uses three integrated N-channel MOSFETs to eliminate external diode losses, achieving >90% efficiency at 300 mA (VIN ≥2.4 V, VOUT = 3.3 V). |
| Programmable UVLO with Hysteresis | Allows custom battery depletion thresholds (e.g., 2.8 V cutoff) using two resistors on UVLO pin, improving runtime predictability. |
Applications
| Portable Audio Players | Cellular Phones |
|---|---|
Use Scenario: Powering DAC, headphone amplifier, and microSD interface from single-cell Li-ion battery with dynamic load ranging from 10 mA (standby) to 500 mA (playback). IC Role / Device Role / Timing Role: Primary 5-V rail generator with automatic mode switching to maintain regulation as battery discharges from 4.2 V to 2.6 V. Use Value: Eliminates need for discrete boost + LDO cascade, reducing component count by 30% and PCB area by 25% versus legacy solutions. | Use Scenario: Supplying camera module, display backlight driver, and USB OTG port from shared single-cell battery in compact form factor. IC Role / Device Role / Timing Role: Fixed 5-V power source with load disconnect during sleep mode to extend standby time beyond 72 hours. Use Value: Achieves 92% peak efficiency at 200 mA, reducing thermal load on RF-sensitive areas and enabling thinner mechanical designs. |
| Personal Medical Products | White LED Driver |
Use Scenario: Providing regulated 5-V supply to glucose meter MCU, LCD, and Bluetooth LE radio powered by AAA alkaline cells. IC Role / Device Role / Timing Role: Low-input-voltage boost converter with 0.3-V operating range and shutdown current <2 μA to maximize shelf life. Use Value: Enables 12-month battery life in intermittent-use devices by minimizing quiescent consumption and supporting deep discharge to 0.8 V per cell. | Use Scenario: Driving 3-series white LEDs (VF ≈ 9.6 V) from single 3.7-V Li-ion cell using external inductor and diode-less synchronous topology. IC Role / Device Role / Timing Role: High-efficiency boost stage configured for constant-current LED drive via external sense resistor and FB pin modulation. Use Value: Delivers >85% efficiency at 20 mA LED current, reducing heat generation in sealed enclosures and extending LED lifetime by 20%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61201DRCR | Fixed 3.3-V output; identical pinout, package, and feature set except output voltage and FB configuration. | Targeted at 3.3-V MCU/Sensor rails instead of 5-V USB/peripheral interfaces. | Select when system requires 3.3-V primary rail and shares same board layout constraints. |
| MAX17062ETA+ | 3-MHz switching frequency, 1.2-A switch, 2.5-V to 5.5-V input, adjustable output (0.6–5.5 V), different pinout and package (12-pin TDFN). | Supports wider output adjustment and higher frequency for smaller magnetics but lacks down-conversion mode and UVLO programming. | Choose for designs needing programmable output or tighter size constraints where layout redesign is acceptable. |
Compared with TPS61202DRCR, TPS61201DRCR offers identical functionality at 3.3 V for lower-power logic rails, while MAX17062ETA+ provides adjustable output and higher frequency but requires PCB redesign and sacrifices down-conversion capability - making TPS61202DRCR optimal for cost-sensitive, fixed-5V, battery-deep-discharge applications.
Availability
TPS61202DRCR is available at Aetrix Electronics and suitable for portable audio players, cellular phones, personal medical products, and white LED driver applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS61202DRCR 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 battery-powered system solutions.
The TPS6120x product line was engineered specifically for ultra-low-input-voltage boost conversion in single-cell battery and energy-harvesting applications, emphasizing startup reliability, efficiency across load range, and seamless mode transition.
FAQ
What is the minimum input voltage required for TPS61202DRCR to start up and regulate?
The TPS61202DRCR starts up and regulates from as low as 0.5 V input voltage - a critical capability for extracting maximum energy from deeply discharged single-cell batteries or low-output energy harvesters. This specification is verified under recommended operating conditions and is independent of load; the device maintains regulation across its full 0.3–5.5 V input range once started.
Does TPS61202DRCR support automatic transition between boost and down-conversion modes?
Yes, the TPS61202DRCR automatically transitions to down-conversion mode when input voltage reaches or exceeds the 5-V output voltage - for example, during initial Li-ion charge (4.2 V) or alkaline cell fresh state (3.2 V for two cells). In this mode, it regulates by adjusting switch conduction to create controlled voltage drop, maintaining output stability without external components.
How does the PS pin affect efficiency and operation of TPS61202DRCR?
The PS pin on TPS61202DRCR controls Power Save mode: pulling PS low enables variable-frequency operation at light loads (<300 mA), boosting efficiency above 85% at 10 mA; pulling PS high forces fixed 1.25–1.65 MHz switching, improving EMI predictability but reducing light-load efficiency by ~10–15 percentage points.
Can TPS61202DRCR be used with a pre-biased output capacitor?
Yes, the TPS61202DRCR supports startup into a pre-biased output - meaning it can safely begin regulation even when VOUT already holds residual voltage (e.g., from backup capacitor or leakage path). This avoids damaging inrush current spikes and ensures reliable power sequencing in multi-rail systems where other supplies may remain active during reset.
What thermal protection features are built into TPS61202DRCR?
The TPS61202DRCR includes internal thermal shutdown that activates at 140°C junction temperature and releases at 120°C due to 20°C hysteresis. This protects against sustained overload, poor heatsinking, or ambient overheating. The exposed thermal pad must be soldered to a PGND copper plane to achieve the specified RθJA of 41.2°C/W and ensure reliable thermal performance.
TPS61202DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- 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):
- 0.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.2A (Switch)
- Frequency - Switching:
- 1.25MHz ~ 1.65MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61202DRCR FAQ
1.How can I place an order for TPS61202DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61202DRCR 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 TPS61202DRCR reliable?
The price and inventory of TPS61202DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61202DRCR is usually 5 days.
3.What payment methods are accepted for TPS61202DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61202DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61202DRCR?
TPS61202DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61202DRCR 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 TPS61202DRCR?
For technical support, including TPS61202DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61202DRCR requirements.
6.How does Aetrix verify that TPS61202DRCR is sourced from the original manufacturer or authorized distributors?
All TPS61202DRCR 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 TPS61202DRCR meets industry standards.
7.What is the process for return or replacement of TPS61202DRCR?
All TPS61202DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61202DRCR, 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 TPS61202DRCR part is unused and in its original packaging.
Return procedure for TPS61202DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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