My Inquiry
My Account
Texas Instruments TPS62202DBVT
- Part No.:
- TPS62202DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62202DBVT.pdf
- Description:
- IC REG BUCK 1.8V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:19,431
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62202DBVT from Texas Instruments is a fixed-output 1.8 V, 300 mA synchronous step-down DC-DC converter in a 5-pin SOT-23 package, operating from 2.5 V to 6 V input. It delivers up to 95% efficiency at 200 mA with 1 MHz PWM switching and enters power-save mode (PFM) below ~66 mA to maintain high light-load efficiency. It powers low-voltage DSPs and processors in battery-powered portable electronics.
For engineers reviewing the TPS62202DBVT datasheet, TPS62202DBVT pinout, TPS62202DBVT application, or TPS62202DBVT equivalent, key selection considerations include its fixed 1.8 V output, 15 µA typical quiescent current in PFM mode, 100% duty-cycle low-dropout operation, soft-start functionality, and compatibility with small ceramic input/output capacitors (4.7 µF / 10 µF).
Technical Context
The TPS62202DBVT employs a voltage-mode control architecture with input voltage feed-forward for fast line/load regulation. Its internal 1 MHz oscillator drives synchronous P-channel and N-channel MOSFET switches, enabling stable operation with minimal external components - only one inductor, one input capacitor, and one output capacitor required.
It features dynamic voltage positioning (DVP), where output voltage rises ~0.8% above nominal under light load to minimize undershoot during sudden load steps. Undervoltage lockout (UVLO) activates below ~1.5 V, and enable logic supports precise system-level power sequencing with <1 µA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±3% over 0–300 mA load and 2.5–6 V input - eliminates need for external feedback resistors. |
| Max Output Current | 300 mA continuous - sufficient for low-power DSPs, microcontrollers, and RF ICs in handheld devices. |
| 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. |
| Quiescent Current | 15 µA typical in power-save mode - extends battery life in standby or intermittent-use applications. |
| Switching Frequency | 1 MHz (650–1500 kHz range) - enables compact magnetics and reduces EMI filtering requirements. |
| Efficiency Peak | Up to 95% at 200 mA with VI = 3.7 V - minimizes thermal stress and improves power density in space-constrained layouts. |
| Shutdown Current | 0.1 µA typical - ensures negligible battery drain when system is powered off via EN pin. |
Pinout & Package
TPS62202DBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VI (Pin 1) | Input supply connection | Accepts 2.5–6 V; must be decoupled with ≥4.7 µF ceramic capacitor placed adjacent to pin. |
| GND (Pin 2) | Power ground reference | Primary return path for switch current and feedback; requires low-impedance connection to power plane. |
| EN (Pin 3) | Enable control input | Active-high logic: >1.3 V enables regulation; <0.4 V forces shutdown with 0.1 µA IQ; must not float. |
| FB (Pin 4) | Feedback reference node | Internally connected to 0.5 V reference; for fixed-output TPS62202, FB is tied directly to VOUT - no external divider needed. |
| SW (Pin 5) | Switch node | Drives external inductor; carries high di/dt; requires short, low-inductance trace to minimize EMI and voltage spikes. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PFM) | Reduces switching frequency and IQ to 15 µA at light loads - maintains >85% efficiency down to 1 mA. |
| Soft Start | Digitally controlled current ramp limits inrush; typical 800 µs startup with 10 µF output cap and 200 mA load. |
| 100% Duty Cycle Operation | P-channel switch remains on at VIN ≈ VOUT - extends usable battery range down to ~1.85 V for 1.8 V output. |
| Dynamic Voltage Positioning | Raises output ~0.8% above nominal at light load - provides headroom to suppress undershoot during 0→300 mA transients. |
| Fast Transient Response | Voltage-mode control with feed-forward achieves <50 µs recovery from 300 mA load step - suitable for burst-mode processors. |
Applications
| Smartphone Baseband Power | PDA Application Processor Supply |
|---|---|
Use Scenario: Powers ARM-based application processor core in smartphone during active UI rendering and background sync. IC Role / Device Role / Timing Role: Primary 1.8 V core rail regulator delivering up to 300 mA with fast transient response to handle CPU burst loads. Use Value: 95% peak efficiency and 15 µA PFM IQ extend talk time; 100% duty cycle allows full utilization of declining Li-ion cell voltage (down to 2.5 V). |
Use Scenario: Supplies 1.8 V to PDA's digital signal processor during handwriting recognition and audio playback. IC Role / Device Role / Timing Role: Fixed-output buck converter providing low-noise, tightly regulated core voltage with soft-start to prevent input rail sag. Use Value: Dynamic voltage positioning reduces output capacitor requirement to 10 µF ceramic - saves board area and cost versus tantalum alternatives. |
| Digital Camera Image Sensor Bias | Portable Media Player Audio Codec |
Use Scenario: Generates clean 1.8 V bias for CMOS image sensor analog front-end during video capture. IC Role / Device Role / Timing Role: Low-ripple, low-noise power source with minimal EMI impact on sensitive analog imaging circuitry. Use Value: 1 MHz fixed-frequency PWM enables predictable noise spectrum; small 4.7 µF input cap suffices due to low ESR ceramic compatibility. |
Use Scenario: Supplies 1.8 V to stereo audio codec in MP3 player during playback with variable processing load. IC Role / Device Role / Timing Role: Efficient, quiet DC-DC converter supporting both active decode (300 mA) and idle decode (1 mA) states. Use Value: Seamless transition between PWM and PFM modes avoids audible switching noise while maintaining >80% efficiency across full load range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62201DBVT | Fixed 1.5 V output; identical package, pinout, and electrical specs except VO and feedback network. | Requires redesign of output rail; not drop-in for 1.8 V systems but suitable for 1.5 V logic or I/O domains. | Select only if system voltage architecture mandates 1.5 V - no layout change needed, but verify downstream voltage tolerance. |
| TPS62203DBVT | Fixed 3.3 V output; same SOT-23-5 footprint, EN/FB/SW/GND/VI pin mapping, and functional modes. | Not interchangeable without level-shifting; intended for higher-voltage peripherals like SDIO or USB PHY interfaces. | Use when powering 3.3 V subsystems - identical layout and BOM management, but output voltage mismatch prevents direct substitution. |
Compared with TPS62201DBVT and TPS62203DBVT, the TPS62202DBVT provides optimal fit for 1.8 V core supplies in portable SoC designs, balancing efficiency, size, and compatibility - whereas the alternatives serve distinct voltage rails and require intentional system-level assignment rather than functional replacement.
Availability
TPS62202DBVT is available at Aetrix Electronics and suitable for smartphone baseband power, PDA application processor supply, and portable media player audio codec applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS62202DBVT 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 high-efficiency DC-DC conversion.
The TPS6220x product line was designed specifically for ultra-low-power portable electronics, emphasizing minimal quiescent current, small solution size, and seamless transition between PWM and PFM modes - targeting battery runtime-critical applications like smartphones and PDAs.
FAQ
What is the output voltage accuracy of the TPS62202DBVT over temperature and load?
The TPS62202DBVT delivers 1.8 V output with ±3% accuracy across the full operating ambient temperature range (–40°C to +85°C) and full load range (0–300 mA). This specification holds for input voltages from 2.5 V to 6.0 V, as confirmed in Section 6.5 of the SLVS417F datasheet. The internal 0.5 V reference and precision feedback network ensure tight regulation without external trimming.
Does the TPS62202DBVT require an external feedback resistor divider?
No, the TPS62202DBVT does not require an external feedback resistor divider. As a fixed-output variant, its internal feedback network is factory-trimmed to 1.8 V, and the FB pin is internally connected to the output. External resistors are only needed for adjustable versions like the TPS62200 - using them with the TPS62202DBVT would disrupt regulation and is not supported.
Can the TPS62202DBVT operate with input voltage lower than 2.5 V?
No, the TPS62202DBVT has a minimum recommended input voltage of 2.5 V per Section 6.3 of the datasheet. Below this, undervoltage lockout (UVLO) disables switching, and operation is not guaranteed. While absolute maximum rating allows –0.3 V, functional operation ceases near 1.5 V UVLO threshold - it cannot regulate 1.8 V output from a fully depleted 1.8 V battery.
What is the purpose of dynamic voltage positioning in the TPS62202DBVT?
Dynamic voltage positioning (DVP) in the TPS62202DBVT raises the output voltage ~0.8% above nominal (to ~1.814 V) under light load conditions. This intentional overvoltage provides margin to absorb voltage droop during rapid load steps from idle to full 300 mA, reducing required output capacitance and improving transient response without compromising steady-state accuracy.
How does the enable (EN) pin function on the TPS62202DBVT?
The EN pin on the TPS62202DBVT is an active-high digital control input. Pulling EN ≥1.3 V enables regulation with soft-start; pulling EN ≤0.4 V forces shutdown with <1 µA supply current. The pin must never be left floating - TI specifies mandatory termination to either VI or GND via a pull-up/down resistor to ensure deterministic startup and shutdown behavior.
TPS62202DBVT 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):
- 1.8V
- 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
TPS62202DBVT FAQ
1.How can I place an order for TPS62202DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62202DBVT 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 TPS62202DBVT reliable?
The price and inventory of TPS62202DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62202DBVT is usually 5 days.
3.What payment methods are accepted for TPS62202DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62202DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62202DBVT?
TPS62202DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62202DBVT 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 TPS62202DBVT?
For technical support, including TPS62202DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62202DBVT requirements.
6.How does Aetrix verify that TPS62202DBVT is sourced from the original manufacturer or authorized distributors?
All TPS62202DBVT 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 TPS62202DBVT meets industry standards.
7.What is the process for return or replacement of TPS62202DBVT?
All TPS62202DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62202DBVT, 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 TPS62202DBVT part is unused and in its original packaging.
Return procedure for TPS62202DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62202DBVT 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…
