My Inquiry
My Account
Texas Instruments TPS62208DBVR
- Part No.:
- TPS62208DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62208DBVR.pdf
- Description:
- IC REG BUCK 1.875V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62208DBVR from Texas Instruments is a fixed-output synchronous step-down DC-DC converter delivering 1.875 V at up to 300 mA, operating from 2.5 V to 6 V input, with 1 MHz fixed-frequency PWM and power-save mode PFM operation. It integrates high-side and low-side MOSFETs in a 5-pin SOT-23 package and targets battery-powered portable electronics requiring high light-load efficiency.
For engineers reviewing the TPS62208DBVR datasheet, TPS62208DBVR pinout, TPS62208DBVR application, or TPS62208DBVR equivalent, key selection criteria 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 small 4.7 µF input / 10 µF output ceramic capacitors.
Technical Context
The TPS62208DBVR employs a voltage-mode control architecture with input voltage feed-forward, enabling fast line and load transient response using only ceramic input/output capacitors. Its dual-mode operation-fixed-frequency PWM above ~66 mA and pulse-frequency modulation (PFM) below-maintains >90% efficiency from 1 mA to full 300 mA load.
Internally, it integrates a 530 mΩ P-channel high-side switch and 430 mΩ N-channel synchronous rectifier (at VIN = 3.6 V), with undervoltage lockout (1.5–2.0 V), soft-start (800 µs typical with 10 µF CO and 200 mA load), and dynamic voltage positioning (0.8% nominal overvoltage at light load to minimize transient droop).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.875 V ±3% (ensures stable core supply for 1.8-V logic with margin for IR drop) |
| Input Voltage Range | 2.5 V to 6.0 V (supports single-cell Li-ion, 3-cell NiMH, or 3.3/5-V rails without external regulation) |
| Max Output Current | 300 mA (sufficient for low-power DSPs, microcontrollers, and RF ICs in handheld devices) |
| Switching Frequency | 650–1500 kHz (typical 1 MHz; enables compact 10 µH inductor and minimal EMI filtering) |
| Quiescent Current | 15 µA typical in power-save mode (extends battery life in standby/sleep states) |
| Efficiency Peak | Up to 95% at 200 mA (achieved via synchronous rectification and optimized gate drive) |
| Shutdown Current | 0.1 µA typical (enables ultra-low leakage during system off-state) |
Pinout & Package
TPS62208DBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VI (Pin 1) | Power input | Accepts 2.5–6 V supply; requires local 4.7 µF ceramic decoupling placed adjacent to pin |
| GND (Pin 2) | Ground reference | Primary return path for power and feedback; must connect to low-impedance ground plane |
| EN (Pin 3) | Enable control | Active-high logic input; <0.4 V disables device (0.1 µA IQ), >1.3 V enables with soft-start |
| SW (Pin 5) | Switch node | Connects to inductor; carries high di/dt switching current; requires tight layout to minimize EMI |
| FB (Pin 4) | Feedback sense | Internally tied to 1.875 V divider; not user-adjustable-bypassed in fixed-output variants |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, reducing conduction loss and thermal footprint |
| Power-save mode (PFM) | Maintains >85% efficiency down to 1 mA load via frequency scaling and 15 µA IQ |
| 100% duty-cycle operation | Enables regulation down to VIN ≈ VOUT + IOUT × rDS(ON)_P, maximizing battery runtime |
| Dynamic voltage positioning | Pre-boosts output to +0.8% at light load, minimizing voltage sag during sudden 0→300 mA transients |
| Integrated soft-start | Staged current ramp limits inrush; achieves 1.875 V regulation in ~800 µs with 10 µF CO |
Applications
| Smartphone Application Processor Core Supply | PDA Memory Interface Power |
|---|---|
|
Use Scenario: Powers ARM Cortex-A series CPU cores requiring tightly regulated 1.875 V at dynamic loads from 10 mA (idle) to 300 mA (burst). IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering low-noise, fast-transient power with dynamic voltage positioning to absorb load steps. Use Value: Enables 100% duty-cycle operation across full Li-ion discharge (4.2 V → 2.5 V), extending usable battery capacity by ~12% versus non-LDO-capable buck converters. |
Use Scenario: Supplies DDR SDRAM I/O and core rails in handheld PDAs where board area and standby current are critical. IC Role / Device Role / Timing Role: Fixed-output buck converter providing stable 1.875 V with <1% ripple in PWM mode and <1% peak-to-peak ripple in PFM mode. Use Value: Achieves 95% peak efficiency and 15 µA quiescent current, reducing thermal load and extending sleep-mode battery life beyond 72 hours. |
| Portable Media Player Audio Codec Bias | Wireless Sensor Node MCU Supply |
|
Use Scenario: Powers high-fidelity audio codecs in MP3 players requiring low-noise, low-ripple 1.875 V for analog sections. IC Role / Device Role / Timing Role: Low-ESR ceramic-compatible regulator minimizing switching noise coupling into sensitive audio paths. Use Value: Delivers <10 mVpp ripple in PWM mode and inherent PFM noise suppression, eliminating need for post-regulation LDOs. |
Use Scenario: Supplies ultra-low-power MCUs (e.g., MSP430, nRF52) in battery-operated IoT sensors with multi-year lifetime requirements. IC Role / Device Role / Timing Role: High-efficiency step-down converter enabling operation directly from primary alkaline or Li-SOCl₂ cells. Use Value: Maintains >88% efficiency at 100 µA load and drops to 0.1 µA shutdown current, supporting 10-year shelf life and 5-year field operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62202DBVR | Fixed 1.8 V output; identical package, pinout, and electrical specs except VO and FB internal divider ratio | Requires redesign of output voltage level; suitable where 1.8 V (not 1.875 V) aligns with SoC VDDIO spec | Select when system timing or voltage margining mandates exactly 1.8 V; no layout change needed |
| TPS62207DBVR | Fixed 1.2 V output; same 5-pin SOT-23, 2.5–6 V input, 300 mA rating, and PFM/PWM architecture | Targets lower-voltage logic domains (e.g., I²C, GPIO); incompatible with 1.875 V rail requirements | Choose only for 1.2 V applications; not a functional substitute for TPS62208DBVR's 1.875 V output |
Compared with TPS62202DBVR and TPS62207DBVR, the TPS62208DBVR provides a unique 1.875 V output optimized for specific memory interface and mixed-signal biasing needs-neither alternative delivers this exact voltage without external feedback modification, which is not supported in fixed-output variants.
Availability
TPS62208DBVR is available at Aetrix Electronics and suitable for smartphone power management, portable medical monitors, and industrial handheld terminals requiring stable component supply with guaranteed long-term sourcing.
Supply support for TPS62208DBVR 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 connectivity technologies, with decades of expertise in power management IC design.
The TPS6220x product line was engineered specifically for space- and efficiency-critical portable electronics, delivering high integration, ultra-low quiescent current, and robust transient performance in minimal SOT-23 footprints.
FAQ
What is the output voltage tolerance of the TPS62208DBVR over temperature and load?
The TPS62208DBVR maintains a fixed 1.875 V output with ±3% accuracy across the full operating ambient temperature range (–40°C to +85°C) and output load current range (0 mA to 300 mA), as specified in the Electrical Characteristics table under "Fixed output voltage" conditions. This tolerance includes initial calibration, line regulation (0.26%/V), and load regulation (0.0014%/mA) contributions, ensuring reliable operation in thermally varying portable environments.
Does the TPS62208DBVR require external feedback resistors?
No, the TPS62208DBVR does not require external feedback resistors. As a fixed-output variant, its internal resistor divider is factory-trimmed to deliver 1.875 V; the FB pin is internally connected and must not be externally modified. Adding external components to the FB pin will disrupt regulation and is not supported per the datasheet.
Can the TPS62208DBVR operate with a 2.4 V input voltage?
No, the TPS62208DBVR has a minimum recommended input voltage of 2.5 V per the Recommended Operating Conditions table. Operation below 2.5 V risks undervoltage lockout activation (threshold 1.5–2.0 V), causing erratic startup or shutdown. For sub-2.5 V battery systems, consider TI's TPS6274x series or discrete LDO solutions.
What is the maximum achievable efficiency of the TPS62208DBVR and at what conditions?
The TPS62208DBVR achieves up to 95% peak efficiency at 200 mA load, 3.6 V input, and 1.875 V output, as shown in the Efficiency vs Load Current graph (Figure 7). Efficiency remains above 90% from 10 mA to 300 mA under VI = 3.7 V, confirming its suitability for applications with wide dynamic load ranges.
Is the TPS62208DBVR pin-compatible with other TPS6220x family members?
Yes, all TPS6220x devices-including TPS62208DBVR, TPS62202DBVR, and TPS62207DBVR-share identical 5-pin SOT-23 (DBV) packaging and pinout (VI, GND, EN, FB, SW). This allows direct substitution within the same footprint when output voltage requirements align, provided the enable logic and thermal constraints are verified.
TPS62208DBVR 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):
- 1.875V
- 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
TPS62208DBVR FAQ
1.How can I place an order for TPS62208DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62208DBVR 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 TPS62208DBVR reliable?
The price and inventory of TPS62208DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62208DBVR is usually 5 days.
3.What payment methods are accepted for TPS62208DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62208DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62208DBVR?
TPS62208DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62208DBVR 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 TPS62208DBVR?
For technical support, including TPS62208DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62208DBVR requirements.
6.How does Aetrix verify that TPS62208DBVR is sourced from the original manufacturer or authorized distributors?
All TPS62208DBVR 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 TPS62208DBVR meets industry standards.
7.What is the process for return or replacement of TPS62208DBVR?
All TPS62208DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62208DBVR, 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 TPS62208DBVR part is unused and in its original packaging.
Return procedure for TPS62208DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62208DBVR 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…
