My Inquiry
My Account
Texas Instruments TPS62008DGSRG4
- Part No.:
- TPS62008DGSRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62008DGSRG4.pdf
- Description:
- IC REG BUCK 1.9V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,446
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62008DGSRG4 from Texas Instruments is a fixed-output, synchronous step-down DC-DC converter delivering 2.5 V at up to 600 mA from a 2–5.5 V input, featuring 95% peak efficiency, 50 μA quiescent current in power-save mode, and internal soft-start for controlled startup in portable power rails.
For engineers reviewing the TPS62008DGSRG4 datasheet, TPS62008DGSRG4 pinout, TPS62008DGSRG4 application, or TPS62008DGSRG4 equivalent, key selection criteria include its 2.5 V fixed output, 750 kHz nominal switching frequency, pin-programmable current limit (600/1200 mA), SYNC-controlled PFM/PWM mode selection, and VSSOP-10 package compatibility with space-constrained battery-powered designs.
Technical Context
The TPS62008DGSRG4 implements a current-mode PFM/PWM control architecture with automatic mode transition: PWM at moderate-to-heavy loads (fixed 750 kHz), PFM at light loads (<120 mA peak inductor current) to sustain high efficiency. It integrates P-channel and N-channel MOSFETs, uses internal slope compensation, and features undervoltage lockout (1.6 V typical) and 100% duty-cycle operation for low-dropout regulation.
Its functional modes are directly controlled via the SYNC pin: grounded for PFM-enabled power-save mode, tied to VIN for forced PWM, and driven by an external 500–1000 kHz CMOS clock for synchronization. The ILIM pin selects between 600 mA (ILIM = GND) and 1200 mA (ILIM = VIN) switch current limits, while the PG open-drain output signals valid regulation after a 100 μs delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±3% over load (10–600 mA) and line (2.7–5.5 V), enabling direct supply to core logic without external feedback resistors. |
| Input Voltage Range | 2 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V), 2–3-cell alkaline/NiMH, and USB-powered systems without pre-regulation. |
| Max Output Current | 600 mA at VIN ≥2.5 V with 10 μH inductor - sufficient for low-power CPUs, DSPs, and peripheral ICs in handheld devices. |
| Quiescent Current | 50 μA typical in PFM mode - minimizes battery drain during standby in always-on subsystems like real-time clocks or sensors. |
| Switching Frequency | 750 kHz nominal (500–1000 kHz sync range) - enables compact 10 μH inductors and low-ESR ceramic capacitors for minimal board area. |
| Efficiency Peak | 95% at 3.6 VIN/2.5 VOUT/200 mA - reduces thermal load and extends runtime in thermally constrained enclosures. |
| Shutdown Current | 0.1 μA typical - ensures negligible battery leakage when system is fully powered down via EN pin control. |
Pinout & Package
TPS62008DGSRG4 is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, optimized for high-density portable PCB layouts with exposed thermal pad (PGND-connected) for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Accepts 2–5.5 V supply; requires 10 μF input capacitor close to pin for stable operation and EMI suppression. |
| FC (Pin 2) | Supply bypass | High-frequency decoupling node; must connect 0.1 μF capacitor to GND for oscillator stability and noise immunity. |
| GND (Pin 3) | Analog ground reference | Reference for internal error amplifier and comparators; separate from PGND to minimize noise coupling into feedback path. |
| PG (Pin 4) | Power-good indicator | Open-drain output active high when VOUT ≥92% of 2.5 V; requires external pull-up to VOUT and is invalid for first 100 μs after EN assertion. |
| FB (Pin 5) | Feedback input | Internally connected to 2.5 V reference divider; unused in fixed-output TPS62008 - leave unconnected per datasheet. |
| ILIM (Pin 6) | Current limit select | Logic-level input: tie to GND for 600 mA limit, to VIN for 1200 mA limit - sets peak switch current threshold. |
| SYNC (Pin 7) | Mode control / sync input | CMOS-level input: GND = PFM/PWM auto-switching; VIN = forced PWM; external 500–1000 kHz clock = synchronized operation. |
| EN (Pin 8) | Enable control | Active-high logic input; drives device into shutdown (<1 μA IQ) when low - supports system-level power sequencing. |
| L (Pin 9) | Switch node | Connects to inductor and internal P/N-MOSFET bridge; carries high di/dt switching current - requires short, low-inductance trace. |
| PGND (Pin 10) | Power ground return | Low-impedance return path for inductor current and switch losses; must be connected to main PCB ground plane under package. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P-channel and N-channel MOSFETs eliminate external diode, reducing conduction loss and improving efficiency by ~10% vs. asynchronous designs. |
| Antiringing switch (fixed-output only) | Active in TPS62008 to suppress parasitic LC ringing during DCM, lowering radiated EMI without external snubbers. |
| Internal soft-start | 1 ms typical ramp time prevents output overshoot and inrush current - eliminates need for external soft-start circuitry or sequencing controllers. |
| 100% duty-cycle operation | Enables dropout as low as RDS(on) × IOUT (≤200 mΩ × 600 mA ≈ 120 mV) - maintains regulation even when VIN approaches VOUT. |
| Thermal protection | Internal junction temperature monitoring shuts down converter above 150°C - safeguards against sustained overload or poor heatsinking. |
Applications
| Cellular Phone Baseband Power | USB DSL Modem Core Supply |
|---|---|
Use Scenario: Powers baseband processor core (e.g., ARM9, DSP) requiring stable 2.5 V at ≤400 mA from a single Li-ion cell (2.7–4.2 V). IC Role / Device Role / Timing Role: Primary step-down regulator providing regulated core voltage with fast transient response to burst-mode processing loads. Use Value: 95% efficiency at 300 mA extends talk time; 50 μA quiescent current preserves battery during idle; SYNC pin allows noise-sensitive RF sections to force PWM mode during transmission. |
Use Scenario: Supplies 2.5 V to Ethernet PHY and USB interface ICs in compact DSL modems powered from 5 V USB bus. IC Role / Device Role / Timing Role: Point-of-load converter stepping down 5 V USB input to isolated 2.5 V rail, synchronized to system clock to avoid beat frequencies. Use Value: 750 kHz switching enables small 10 μH inductor and 10 μF ceramic output cap; PG signal enables firmware to verify power integrity before initializing USB enumeration. |
| Handheld PDA Application Processor | Digital Camera Image Sensor Bias |
Use Scenario: Delivers 2.5 V to application processor (e.g., OMAP) in PDAs with dynamic DVFS, where load varies from 10 mA (idle) to 600 mA (video decode). IC Role / Device Role / Timing Role: Adaptive power supply that transitions seamlessly between PFM (low IQ) and PWM (low noise) based on real-time load demand. Use Value: Automatic PFM/PWM mode switching sustains >85% efficiency across 10–600 mA range; EN pin enables OS-controlled power gating during suspend/resume cycles. |
Use Scenario: Provides clean, low-noise 2.5 V bias to CMOS image sensor analog front-end in compact digital cameras. IC Role / Device Role / Timing Role: Low-EMI power source with antiringing switch and forced PWM capability to suppress switching artifacts in analog pixel readout. Use Value: Antiringing switch reduces high-frequency noise on 2.5 V rail; forced PWM mode (SYNC = VIN) eliminates PFM frequency modulation that could couple into sensitive analog signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62007DGSR | Fixed 3.3 V output; identical package, pinout, and feature set except output voltage and FB network. | Used where 3.3 V I/O or peripheral rail is required instead of 2.5 V core voltage. | Select TPS62007DGSR only if system requires 3.3 V - not a drop-in replacement due to different output voltage and no FB pin usage. |
| TPS62231DRVR | Higher 3 MHz switching frequency, 2.0–6.0 V input, 600 mA output, but uses 6-pin WSON package and lacks SYNC/ILIM pins. | Targets ultra-compact designs needing smaller inductors; lacks programmable current limit and external sync capability. | Choose TPS62231DRVR for space-critical apps where 3 MHz operation justifies trade-offs in control flexibility and thermal performance. |
Compared with TPS62008DGSRG4, TPS62007DGSR provides identical functionality at 3.3 V output but cannot replace it in 2.5 V systems, while TPS62231DRVR offers higher frequency and smaller footprint but sacrifices programmable current limiting and synchronization - making TPS62008DGSRG4 optimal for balanced performance, control, and legacy design compatibility.
Availability
TPS62008DGSRG4 is available at Aetrix Electronics and suitable for cellular phones, USB-based DSL modems, handheld PDAs, and digital cameras requiring stable component supply with consistent parametric performance and long-term production support.
Supply support for TPS62008DGSRG4 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 for portable and industrial applications.
The TPS6200x family was designed specifically for low-power, battery-operated systems requiring high efficiency across wide load ranges - targeting handheld computing, communications, and imaging devices where runtime and thermal constraints are critical.
FAQ
What is the output voltage tolerance of the TPS62008DGSRG4 under full load?
The TPS62008DGSRG4 delivers 2.5 V with a guaranteed tolerance of ±3% across the full operating range: input voltage 2.7–5.5 V, output current 10–600 mA, and ambient temperature –40°C to 85°C. This specification is confirmed in the Electrical Characteristics table of the SLVS294F datasheet, ensuring reliable core voltage regulation for sensitive digital loads without external trimming.
Can the TPS62008DGSRG4 operate with a 2.0 V input supply?
Yes, the TPS62008DGSRG4 supports a minimum input voltage of 2.0 V per its Recommended Operating Conditions. However, at 2.0 V input, maximum output current is limited to 200 mA (not 600 mA) due to reduced headroom for the internal P-channel MOSFET's RDS(on) and duty cycle constraints - this is explicitly specified in Section 7.3 of the datasheet.
How does the SYNC pin affect efficiency and noise performance in the TPS62008DGSRG4?
When SYNC is grounded, the TPS62008DGSRG4 operates in PFM/PWM auto-switching mode, maximizing efficiency at light loads (≥85% at 10 mA) but introducing variable switching frequency. When SYNC is tied to VIN, it forces fixed-frequency PWM mode - reducing conducted and radiated noise at the cost of lower light-load efficiency (≈70% at 10 mA), which is critical for RF-sensitive applications.
Is an external feedback resistor network required for the TPS62008DGSRG4?
No. The TPS62008DGSRG4 is a fixed-output variant with internal feedback divider set for 2.5 V. Pin 5 (FB) is internally connected and must remain unconnected in the application circuit - unlike the adjustable TPS62000, no external resistors or compensation components are needed, simplifying layout and reducing BOM count.
What thermal considerations apply to the TPS62008DGSRG4 in continuous 600 mA operation?
In continuous 600 mA operation at 3.6 VIN/2.5 VOUT, the TPS62008DGSRG4 dissipates approximately 330 mW (calculated from 95% efficiency). With a junction-to-ambient thermal resistance (RθJA) of 160°C/W, this yields a ~53°C rise above ambient. Adequate copper pour on PGND and thermal vias to inner layers are essential to maintain junction temperature below 125°C maximum.
TPS62008DGSRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.9V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 750kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS62008DGSRG4 FAQ
1.How can I place an order for TPS62008DGSRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62008DGSRG4 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 TPS62008DGSRG4 reliable?
The price and inventory of TPS62008DGSRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62008DGSRG4 is usually 5 days.
3.What payment methods are accepted for TPS62008DGSRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62008DGSRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62008DGSRG4?
TPS62008DGSRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62008DGSRG4 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 TPS62008DGSRG4?
For technical support, including TPS62008DGSRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62008DGSRG4 requirements.
6.How does Aetrix verify that TPS62008DGSRG4 is sourced from the original manufacturer or authorized distributors?
All TPS62008DGSRG4 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 TPS62008DGSRG4 meets industry standards.
7.What is the process for return or replacement of TPS62008DGSRG4?
All TPS62008DGSRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62008DGSRG4, 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 TPS62008DGSRG4 part is unused and in its original packaging.
Return procedure for TPS62008DGSRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62008DGSRG4 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…
