My Inquiry
My Account
Texas Instruments TPS61201DRCT
- Part No.:
- TPS61201DRCT
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61201DRCT.pdf
- Description:
- IC REG BOOST 3.3V 1.2A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,049
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61201DRCT from Texas Instruments is a synchronous boost converter IC designed for low-input-voltage battery-powered systems. It delivers a fixed 3.3 V output from input voltages as low as 0.3 V, supports up to 600 mA output current at VIN ≥ 3 V, integrates 1.3-A internal switches, and operates in automatic boost/down-conversion mode - enabling stable regulation even when VIN ≥ VOUT. It is used in single-cell Li-ion or alkaline-powered portable audio and medical devices.
For engineers reviewing the TPS61201DRCT datasheet, TPS61201DRCT pinout, TPS61201DRCT application, or TPS61201DRCT equivalent, key selection considerations include its 3.3 V fixed output, 0.3–5.5 V input range, Power Save mode control via PS pin, thermal shutdown (140°C), and VSON-10 (3 mm × 3 mm) package with separate PGND/GND pins for noise-sensitive power delivery.
Technical Context
The TPS61201DRCT 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 load and input ranges while maintaining load disconnect during shutdown.
It features automatic transition between boost and down-conversion modes: when VIN ≥ VOUT (e.g., 3.3 V out with 3.6 V Li-ion input), it regulates by modulating rectifier switch conduction - not by disabling switching - preserving regulation but increasing conduction losses. The VAUX pin supplies internal control circuitry and enables startup from 0.5 V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1% (3.27–3.33 V), internally trimmed - eliminates external feedback resistors and improves accuracy over temperature. |
| Input Voltage Range | 0.3 V to 5.5 V - supports startup from depleted single-cell batteries (e.g., 0.5 V) and operation across full Li-ion (2.6–4.2 V) or triple-alkaline (0.9–4.5 V) discharge curves. |
| Max Output Current | 600 mA at VOUT = 3.3 V and VIN ≥ 3 V - sufficient for powering RF modules, microcontrollers, or white LED strings without external current boosting. |
| Switching Frequency | 1.25–1.65 MHz - enables use of small 1–2.2 μH inductors and 10–22 μF ceramic output capacitors, reducing board area and EMI filtering complexity. |
| Quiescent Current | 50–70 μA (PS = Low) - extends battery life in always-on sensor nodes or standby circuits where ultra-low idle consumption is critical. |
| Current Limit | Average inductor current limit: 1200–1500 mA - protects internal switches during short-circuit or heavy-load transients without requiring external current-sense components. |
| Thermal Shutdown | 140°C with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design; auto-recovery avoids system latch-up. |
Pinout & Package
The TPS61201DRCT is housed in a thermally enhanced 10-pin VSON package (3.0 mm × 3.0 mm, 0.5 mm pitch) with an exposed thermal pad that must be soldered to PGND for reliable power dissipation and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VAUX (Pin 1) | Auxiliary supply rail | Provides regulated ~2.4–5.5 V to internal control circuitry; must be decoupled with ≥0.1 μF capacitor; enables startup from 0.5 V VIN. |
| VOUT (Pin 2) | Regulated output | Delivers fixed 3.3 V to load; connects directly to FB pin for fixed-output configuration; requires ≥10 μF ceramic output capacitance. |
| L (Pin 3) | Inductor connection | Connects to boost inductor; carries high di/dt switching current - requires short, low-inductance PCB trace to minimize EMI and voltage spikes. |
| PGND (Pin 4) | Power ground return | Return path for high-current switch paths (L, VOUT); must be connected to GND at a single point near Pin 9 to avoid ground bounce. |
| VIN (Pin 5) | Main input supply | Accepts 0.3–5.5 V battery or energy-harvesting source; requires ≥10 μF input capacitance close to Pin 5 and Pin 4. |
| EN (Pin 6) | Enable control | Active-high logic input (VIH = 1.2 V min); disables converter and disconnects load from input when low - reduces system standby current to ≤2 μA. |
| UVLO (Pin 7) | Undervoltage lockout input | Monitors external voltage divider; triggers shutdown if voltage drops below 250 mV (falling threshold) - prevents brownout operation of downstream circuitry. |
| PS (Pin 8) | Power Save mode control | Active-low input (VIL = 0.4 V max); enables variable-frequency light-load operation when low; forces fixed-frequency mode when high. |
| GND (Pin 9) | Control ground reference | Reference for EN, PS, UVLO, FB; must be tied to PGND at one point only - separates noise-sensitive analog control from high-current power paths. |
| FB (Pin 10) | Feedback input | Internally connected to VOUT for fixed-output TPS61201DRCT - no external resistor divider required; ensures precise 3.3 V regulation without layout sensitivity. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic boost/down-conversion mode | Enables seamless regulation from 0.3 V up to 5.5 V input - supports both battery discharge (VIN < VOUT) and overvoltage conditions (VIN > VOUT) without external mode control logic. |
| Load disconnect during shutdown | Completely isolates VOUT from VIN when EN = low - prevents back-powering of failed or disconnected battery sources and eliminates reverse leakage paths. |
| Synchronous 3-switch topology | Uses three integrated N-channel MOSFETs (main switch, rectifier, bypass) to eliminate external Schottky diode - improves efficiency by 5–10% and reduces thermal stress at high loads. |
| Startup into full load at 0.5 V input | Operates from deeply discharged cells (e.g., 0.5 V alkaline) while delivering full 600 mA - eliminates need for pre-charge circuits or auxiliary start-up supplies in energy-constrained designs. |
| Output short-circuit protection | Reduces average current limit under fault conditions - maintains safe junction temperature and prevents catastrophic failure during accidental VOUT-to-GND shorts. |
Applications
| Portable Audio Players | Personal Medical Devices |
|---|---|
Use Scenario: Powering DACs, amplifiers, and Bluetooth radios in compact MP3 players using a single 1.5 V alkaline cell. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting 0.9–1.6 V battery voltage to stable 3.3 V system rail with minimal quiescent current. Use Value: Enables >20-hour playback on AA alkaline by maintaining >90% efficiency at 100 mA load and dropping to <70 μA IQ in pause mode. | Use Scenario: Supplying glucose meters or pulse oximeters powered by coin-cell or AAA batteries with strict shelf-life requirements. IC Role / Device Role / Timing Role: System power manager providing regulated 3.3 V from 0.5–3.0 V input, supporting rapid wake-from-shutdown and accurate ADC reference voltage generation. Use Value: Extends 5-year shelf life via 2 μA shutdown current and enables instant-on measurement with 0.5 V cold-start capability. |
| Cellular Phones (Feature Phones) | White LED Driver |
Use Scenario: Delivering 3.3 V core power to baseband processors and PMUs in legacy GSM handsets using single Li-ion cells. IC Role / Device Role / Timing Role: Main system regulator handling dynamic load steps from 10 mA (idle) to 500 mA (transmit burst) with <100 mV output droop. Use Value: Maintains processor stability during RF transmission by sustaining 600 mA peak current with <1.5% load regulation across 10–500 mA range. | Use Scenario: Driving 3–5 white LEDs (VF ≈ 3.2 V) from a single 3.6 V Li-ion cell in flashlights or indicator panels. IC Role / Device Role / Timing Role: Constant-voltage LED driver operating in down-conversion mode when cell voltage exceeds LED string VF. Use Value: Eliminates need for separate buck or linear LED drivers - provides consistent brightness across full 4.2→2.8 V battery discharge with <2% output voltage drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61200DRCT | Adjustable output (1.8–5.5 V) via external resistor divider; 500 mV feedback reference; higher IQ (70 μA vs 50 μA typical). | Requires external resistors and layout care for feedback stability; better for multi-rail or programmable systems. | Select TPS61200DRCT when output voltage flexibility or tighter line/load regulation across varying VOUT is needed. |
| TPS61099YFFR | Lower IQ (300 nA shutdown, 400 nA operating); 300 mA max output; 0.7-V startup; smaller 6-pin WSON package. | Optimized for ultra-low-power IoT sensors; insufficient for 600 mA loads or 3.3 V fixed-output simplicity. | Choose TPS61099YFFR only for sub-100 μA average current applications where battery life outweighs output capability. |
Compared with TPS61201DRCT, TPS61200DRCT offers design flexibility at the cost of BOM count and layout sensitivity, while TPS61099YFFR trades output current and fixed-voltage convenience for nanowatt-level quiescent performance - making TPS61201DRCT optimal for cost-sensitive, medium-power portable devices needing plug-and-play 3.3 V regulation.
Availability
TPS61201DRCT is available at Aetrix Electronics and suitable for portable audio players, personal medical devices, feature phones, and white LED lighting systems requiring stable component supply, long-term manufacturability, and guaranteed TI second-sourcing.
Supply support for TPS61201DRCT 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 space-constrained, single-cell battery applications - prioritizing cold-start capability, integrated protection, and minimal external component count.
FAQ
What is the minimum input voltage required to start up the TPS61201DRCT?
The TPS61201DRCT starts up from as low as 0.5 V input voltage, enabled by its dedicated VAUX pin and internal charge pump. This allows operation from deeply discharged alkaline, NiMH, or Li-ion cells - critical for maximizing usable battery capacity in portable devices. Startup behavior is verified across temperature and process corners per TI SLVS577E datasheet Section 8.5.
Does the TPS61201DRCT require external feedback resistors to set its output voltage?
No, the TPS61201DRCT has a factory-trimmed internal resistor divider that sets its output to a precise 3.3 V ±1%. The FB pin is internally connected to VOUT, eliminating external resistors and associated layout sensitivity or drift. This simplifies design, reduces BOM cost, and improves long-term output accuracy compared to adjustable variants like TPS61200DRCT.
How does the TPS61201DRCT behave when input voltage exceeds 3.3 V?
When VIN rises above 3.3 V, the TPS61201DRCT automatically enters down-conversion mode - modulating its synchronous rectifier switches to maintain regulated 3.3 V output without disabling switching. This avoids output dropout during battery recharge or high-state-of-charge conditions, though conduction losses increase slightly. Thermal design must account for this mode's reduced efficiency per Section 10.3.1.2 of the datasheet.
What is the purpose of the separate PGND and GND pins on the TPS61201DRCT?
The TPS61201DRCT uses separate PGND (Pin 4) and GND (Pin 9) pins to isolate high-current power return paths from sensitive analog control grounds. PGND carries pulsed inductor and switch currents, while GND references EN, PS, UVLO, and FB. They must connect at a single point near Pin 9 to prevent ground bounce from corrupting regulation - a key layout requirement documented in TI SLVS577E Section 13.
Can the TPS61201DRCT drive a 500 mA load continuously at 3.3 V output?
Yes, the TPS61201DRCT supports continuous 600 mA output current at 3.3 V when VIN ≥ 3 V, as confirmed in the "Features" section and electrical characteristics table (Section 8.5) of the TI SLVS577E datasheet. Sustained operation requires proper thermal design: the VSON-10 package's RθJA is 41.2°C/W, so PCB copper area and thermal vias under the exposed pad are essential to keep junction temperature below 125°C.
TPS61201DRCT 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):
- 3.3V
- 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)
TPS61201DRCT FAQ
1.How can I place an order for TPS61201DRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61201DRCT 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 TPS61201DRCT reliable?
The price and inventory of TPS61201DRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61201DRCT is usually 5 days.
3.What payment methods are accepted for TPS61201DRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61201DRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61201DRCT?
TPS61201DRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61201DRCT 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 TPS61201DRCT?
For technical support, including TPS61201DRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61201DRCT requirements.
6.How does Aetrix verify that TPS61201DRCT is sourced from the original manufacturer or authorized distributors?
All TPS61201DRCT 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 TPS61201DRCT meets industry standards.
7.What is the process for return or replacement of TPS61201DRCT?
All TPS61201DRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61201DRCT, 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 TPS61201DRCT part is unused and in its original packaging.
Return procedure for TPS61201DRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61201DRCT Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
