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Texas Instruments TPS62201DBVT
- Part No.:
- TPS62201DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62201DBVT.pdf
- Description:
- IC REG BUCK 1.5V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:564
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Product details
Overview
TPS62201DBVT from Texas Instruments is a fixed-output 1.5 V, 300 mA synchronous step-down DC-DC converter in SOT-23-5 package, operating from 2.5 V to 6 V input, with 1 MHz fixed-frequency PWM and power-save mode PFM operation, designed for low-power DSP and processor supplies in portable electronics.
For engineers reviewing the TPS62201DBVT datasheet, TPS62201DBVT pinout, TPS62201DBVT application, or TPS62201DBVT equivalent, key selection considerations include its 15 µA typical quiescent current in power-save mode, ±3% output voltage accuracy over load/temperature, 100% duty-cycle low-dropout capability, and compatibility with 4.7 µF input / 10 µF ceramic output capacitors.
Technical Context
The TPS62201DBVT implements a voltage-mode control architecture with input-voltage feed-forward, enabling fast line and load transient response using only small ceramic capacitors. Its dual-mode operation-fixed 1 MHz PWM at medium-to-heavy loads and pulse-frequency modulation (PFM) at light loads-maintains up to 95% efficiency across 10 µA–300 mA output current range.
Internally, it integrates P-channel and N-channel MOSFETs with on-resistances of 670–850 mΩ (P-ch) and 530–660 mΩ (N-ch) at 2.5 V, undervoltage lockout (1.5–2.0 V), soft-start (800 µs typical with 10 µF COUT), and dynamic output voltage positioning to minimize transient droop/overshoot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±3% over 0–300 mA load and –40°C to +85°C ambient - ensures stable core supply for low-voltage logic without external feedback resistors. |
| Input Voltage Range | 2.5 V to 6.0 V - supports single-cell Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd (3.6–4.5 V), and standard 3.3 V/5 V rails. |
| Max Output Current | 300 mA - sufficient for powering ARM Cortex-M cores, low-power FPGAs, or audio codecs in space-constrained designs. |
| Quiescent Current | 15 µA typical in power-save mode - extends battery life in always-on sensor nodes or standby subsystems. |
| Switching Frequency | 650–1500 kHz (typ. 1 MHz) - enables compact 10 µH inductor and 10 µF ceramic output capacitor without compromising EMI or transient response. |
| Efficiency Peak | Up to 95% at 200 mA with VIN = 3.7 V, VOUT = 1.5 V - reduces thermal stress and improves power density in handheld devices. |
| Shutdown Current | 0.1 µA typical - enables ultra-low leakage during system sleep states when EN is pulled low. |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected - compatible with standard reflow profiles and manual soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VI | Input supply rail | Accepts 2.5–6 V; requires 4.7 µF ceramic capacitor placed adjacent to minimize high-frequency input ripple. |
| 2 - GND | Power ground reference | Primary return path for switch current and IC bias; must be connected to low-impedance PCB ground plane. |
| 3 - EN | Enable control input | Active-high logic; pull to VI to enable, to GND to shut down (0.1 µA IQ); must not float - internal pull-down absent. |
| 4 - FB | Feedback sense node | Internally tied to 1.5 V output divider; no external components required - simplifies layout and eliminates resistor tolerance errors. |
| 5 - SW | Switch node | Drives external 10 µH inductor; carries high di/dt; requires short, wide trace and tight coupling to GND to limit EMI and ringing. |
Key Features
| Feature | Design Value |
|---|---|
| Power-save mode with PFM | Maintains ≥85% efficiency down to 10 µA load while reducing switching frequency and quiescent current to 15 µA. |
| Dynamic voltage positioning | Raises output 0.8% above nominal at light load to provide headroom for load-step transients, minimizing undershoot. |
| 100% duty-cycle operation | Enables regulation down to VIN − VOUT ≈ 100 mV (at 300 mA), maximizing usable battery voltage range in Li-ion systems. |
| Soft-start circuitry | Staggers switch-current ramp-up (60 → 120 → 240 → 480 mA) to limit inrush, achieving 800 µs startup time with 10 µF COUT. |
| Integrated MOSFETs | Eliminates need for external high-side/low-side switches - reduces BOM count and PCB area versus controller-based solutions. |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition powered by coin-cell or thin-film battery. IC Role / Device Role / Timing Role: Primary 1.5 V supply for ultra-low-power microcontroller and analog front-end. Use Value: 15 µA quiescent current extends battery life beyond 1 year; 100% duty-cycle operation extracts full energy from declining battery voltage. |
Use Scenario: Wireless temperature/humidity node deployed in remote locations with solar charging. IC Role / Device Role / Timing Role: Regulated 1.5 V rail for sub-GHz RF transceiver and precision ADC during burst transmission. Use Value: 95% peak efficiency minimizes self-heating in sealed enclosures; PFM mode maintains >80% efficiency at µA-level sleep current. |
| Portable Medical Ultrasound Probe | Smart Home Motion Detector |
Use Scenario: Handheld ultrasound probe with integrated FPGA-based beamformer and display driver. IC Role / Device Role / Timing Role: Core logic supply delivering clean 1.5 V at up to 300 mA during image capture bursts. Use Value: Fast voltage-mode control limits output droop to <20 mV during 100 mA → 300 mA load steps; 10 µF ceramic output suffices. |
Use Scenario: Battery-powered PIR motion detector with BLE connectivity and local inference. IC Role / Device Role / Timing Role: Stable 1.5 V source for CMOS image sensor, microcontroller, and BLE SoC during wake events. Use Value: Dynamic voltage positioning prevents brownout during simultaneous sensor readout and radio transmit; EN pin enables precise power gating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62202DBVT | Fixed 1.8 V output; identical pinout, specs, and package - differs only in internal feedback divider ratio. | Requires redesign of downstream logic voltage levels if 1.5 V is mandatory; suitable where 1.8 V I/O compatibility exists. | Select when system uses 1.8 V tolerant peripherals and higher VOUT improves noise margin or reduces dropout loss. |
| TPS62205DBVT | Fixed 2.5 V output; same thermal performance and quiescent current, but higher VOUT increases conduction loss at same load. | Not suitable for 1.5 V core supplies; applicable only for 2.5 V analog or interface rails requiring tighter regulation. | Choose only if target rail is 2.5 V - avoids external resistor network needed with adjustable versions while retaining SOT-23 footprint. |
Compared with TPS62201DBVT, TPS62202DBVT offers higher output voltage for improved noise immunity in mixed-signal systems, while TPS62205DBVT serves 2.5 V rails but incurs ~12% higher conduction loss at 300 mA due to increased VOUT–VIN differential.
Availability
TPS62201DBVT is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, portable medical probes, and smart home motion detectors requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS62201DBVT 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management technologies with over 90 years of innovation history.
The TPS6220x product line was engineered specifically for high-efficiency, space-constrained portable power applications - delivering regulated low-voltage rails from single-cell batteries or standard voltage rails with minimal external components.
FAQ
What is the output voltage tolerance of the TPS62201DBVT over temperature and load?
The TPS62201DBVT delivers a fixed 1.5 V output with ±3% accuracy across the full operating range: –40°C to +85°C ambient temperature and 0–300 mA output current. This specification is verified per TI's SLVS417F datasheet Section 6.5, ensuring reliable operation in consumer and industrial environments without external trimming.
Does the TPS62201DBVT require external feedback resistors?
No. The TPS62201DBVT is a fixed-output variant with internal feedback divider set for 1.5 V; the FB pin is pre-connected internally and requires no external resistors. This eliminates resistor tolerance errors, saves PCB area, and simplifies design versus adjustable versions like the TPS62200.
Can the TPS62201DBVT operate with input voltage below 2.5 V?
No. The TPS62201DBVT has a minimum recommended input voltage of 2.5 V and an undervoltage lockout threshold of 1.5–2.0 V. Operation below 2.5 V violates Recommended Operating Conditions (Section 6.3 of SLVS417F) and may cause unstable regulation or shutdown.
What is the maximum achievable efficiency of the TPS62201DBVT and under what conditions?
The TPS62201DBVT achieves up to 95% peak efficiency at 200 mA output current with 3.7 V input and 1.5 V output, as shown in Figure 7 of the SLVS417F datasheet. Efficiency remains above 85% from 10 mA to 300 mA, enabled by automatic transition between PWM and PFM modes.
Is the TPS62201DBVT RoHS-compliant and lead-free?
Yes. The TPS62201DBVT is manufactured in TI's RoHS-compliant, lead-free SOT-23-5 (DBV) package per JEDEC J-STD-020 moisture sensitivity level 1 rating, and meets IPC/JEDEC J-STD-033 handling requirements for surface-mount assembly.
TPS62201DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 300mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS62201DBVT FAQ
1.How can I place an order for TPS62201DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62201DBVT 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 TPS62201DBVT reliable?
The price and inventory of TPS62201DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62201DBVT is usually 5 days.
3.What payment methods are accepted for TPS62201DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62201DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62201DBVT?
TPS62201DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62201DBVT 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 TPS62201DBVT?
For technical support, including TPS62201DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62201DBVT requirements.
6.How does Aetrix verify that TPS62201DBVT is sourced from the original manufacturer or authorized distributors?
All TPS62201DBVT 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 TPS62201DBVT meets industry standards.
7.What is the process for return or replacement of TPS62201DBVT?
All TPS62201DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62201DBVT, 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 TPS62201DBVT part is unused and in its original packaging.
Return procedure for TPS62201DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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