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Texas Instruments TPS62001DGSG4
- Part No.:
- TPS62001DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62001DGSG4.pdf
- Description:
- IC REG BUCK 0.9V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,004
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Product details
Overview
TPS62001DGSG4 from Texas Instruments is a fixed-output, synchronous step-down DC-DC converter delivering 1 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 pin-programmable current limit (600 mA typical). It serves as the primary voltage regulator for low-power microcontrollers in battery-powered handheld devices.
For engineers reviewing the TPS62001DGSG4 datasheet, TPS62001DGSG4 pinout, TPS62001DGSG4 application, or TPS62001DGSG4 equivalent, key selection criteria include its 1-V fixed output, VSSOP-10 package footprint, SYNC-controlled PFM/PWM mode switching, and PG open-drain power-good signaling with 92% threshold.
Technical Context
The TPS62001DGSG4 implements a current-mode, synchronous buck topology with integrated P-channel high-side and N-channel low-side MOSFETs. It operates at a nominal 750 kHz switching frequency, supports external synchronization from 500 kHz to 1 MHz, and transitions automatically between PWM (moderate/heavy load) and PFM (light load) to sustain high efficiency across 0–600 mA output current.
Its control architecture includes internal compensation, soft-start (1 ms typical), undervoltage lockout (~1.6 V), and a dedicated antiringing switch active only in fixed-output variants. The ILIM pin selects between 600 mA (ILIM = GND) and 1200 mA (ILIM = VIN) current limits, while the PG pin provides open-drain status with 100 μs startup delay and 2.5% hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1 V ±3% over 10 mA–600 mA load and 2.5 V–5.5 V input - ensures stable core supply for 1-V logic domains. |
| Input Voltage Range | 2 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.2 V), 2–3-cell alkaline/NiMH, and USB-powered systems. |
| Max Output Current | 600 mA at VIN ≥2.5 V with 10 μH inductor - sufficient for low-power DSPs and ARM Cortex-M0/M3 cores. |
| Quiescent Current | 50 μA typical in PFM mode - extends battery life in standby without compromising wake-up response. |
| Switching Frequency | 750 kHz nominal, synchronizable 500–1000 kHz - enables compact 10 μH inductors and reduces EMI filtering burden. |
| Power Good Threshold | 92% of nominal VOUT (0.92 V) with 2.5% hysteresis - provides reliable system reset and sequencing control. |
| Shutdown Current | 0.1 μA typical - eliminates leakage during deep sleep or system off states. |
Pinout & Package
TPS62001DGSG4 is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5-mm lead pitch, optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Accepts 2–5.5 V; requires 10 μF ceramic bypass capacitor close to pin for stability and noise suppression. |
| FC (Pin 2) | High-frequency input bypass | Connects to 0.1 μF capacitor near IC for clean gate drive and oscillator supply decoupling. |
| GND (Pin 3) | Analog ground reference | Reference for feedback, enable, and sync circuits; must be separated from PGND in layout. |
| PG (Pin 4) | Open-drain power-good output | Active-high when VOUT ≥0.92 V; requires external pull-up to VOUT for valid sequencing signal. |
| FB (Pin 5) | Feedback input | Internally connected to 1-V divider - no external resistors needed; unused in fixed-output variants. |
| ILIM (Pin 6) | Current limit configuration | GND = 600 mA limit; VIN = 1200 mA limit - sets peak switch current to match load safety margin. |
| SYNC (Pin 7) | Mode control and clock sync | GND = PFM/PWM auto-switching; VIN = forced PWM; external CMOS clock = synchronized operation. |
| EN (Pin 8) | Enable control | Logic high (>1.3 V) enables regulation; logic low (<0.4 V) disables with <1 μA shutdown current. |
| L (Pin 9) | Power switch node | Connects to 10 μH inductor; carries high di/dt switching current - requires short, wide copper trace. |
| PGND (Pin 10) | Power ground return | Low-impedance return path for inductor and MOSFET currents - must connect directly to input/output capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, reducing conduction loss and improving full-load efficiency to 95%. |
| Antiringing switch | Active only in fixed-output versions like TPS62001DGSG4 - suppresses LC ringing during DCM, lowering radiated EMI by >10 dB. |
| 100% duty-cycle operation | Enables dropout <100 mV at light loads - maintains regulation as VIN approaches 1 V, critical for Li-ion end-of-discharge. |
| Internal soft-start | 1 ms ramp time prevents output overshoot and inrush current spikes during power-up - eliminates need for external timing components. |
| Thermal protection | Junction temperature shutdown at 150°C with hysteresis - protects against sustained overload or poor PCB thermal design. |
Applications
| Cellular Phone Baseband Power | USB DSL Modem Core Supply |
|---|---|
Use Scenario: Regulating 1-V supply for baseband processor and RF transceiver in dual-mode GSM/EDGE handsets operating from single Li-ion cell. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated 1-V rail with fast transient response to burst-mode processing demands. Use Value: 95% efficiency at 300 mA extends talk time by >12% versus legacy linear regulators; PG signal enables precise power sequencing with BB ASIC. | Use Scenario: Generating stable 1-V core voltage for USB-connected DSL modem SoC powered from 5-V USB bus with tight ripple requirements. IC Role / Device Role / Timing Role: Fixed-output DC-DC converter delivering low-noise 1-V supply with SYNC pin tied to system clock for deterministic EMI placement. Use Value: Antiringing switch and PFM/PWM mode reduce conducted EMI below CISPR-22 Class B limits; 50 μA quiescent current minimizes standby drain. |
| Handheld PDA Application Processor | MP3 Player DSP Core Supply |
Use Scenario: Powering ARM9-based application processor in palm-sized PDA with dynamic voltage scaling and aggressive sleep modes. IC Role / Device Role / Timing Role: Main system regulator supporting DVFS via EN pin control and seamless transition between active (PWM) and idle (PFM) states. Use Value: 600 mA capability handles CPU bursts; 100% duty cycle sustains regulation down to 1.1 V input - enabling deeper battery discharge before shutdown. | Use Scenario: Supplying 1-V core voltage to low-power audio DSP in flash-based MP3 player running from two AA alkaline cells (2.0–3.2 V). IC Role / Device Role / Timing Role: Efficient step-down converter with shutdown current <1 μA, enabling multi-week standby on button-cell backup. Use Value: 50 μA quiescent current in PFM mode doubles shelf-life versus comparable converters; VSSOP-10 footprint fits ultra-thin form factor. |
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 |
|---|---|---|---|
| TPS62000DGSG4 | Adjustable output (0.8–VIN) vs fixed 1 V; identical pinout, package, and feature set except FB pin used externally. | Requires external resistor divider and feedforward capacitor; less suitable for cost-sensitive, fixed-rail designs. | Select TPS62000DGSG4 only if output voltage flexibility or future design reuse justifies added BOM and layout complexity. |
| TPS62040DSGT | Higher 2-A output, 3-MHz switching, smaller 2-mm × 2-mm WSON package; different pinout and no PG output. | Targets higher-current applications (e.g., FPGA I/O banks); lacks power-good signaling and PFM mode. | Choose TPS62040DSGT when >600 mA load or board area reduction outweighs need for PG monitoring and ultra-low IQ. |
Compared with TPS62001DGSG4, TPS62000DGSG4 offers voltage adjustability at the cost of external components and reduced integration, while TPS62040DSGT trades PG functionality and light-load efficiency for higher current and smaller size - making TPS62001DGSG4 optimal for space-constrained, battery-powered 1-V systems requiring sequencing and long runtime.
Availability
TPS62001DGSG4 is available at Aetrix Electronics and suitable for cellular phones, USB DSL modems, handheld PDAs, and MP3 players requiring stable component supply with consistent parametric performance and long-term lifecycle support.
Supply support for TPS62001DGSG4 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 ICs, with decades of expertise in high-efficiency DC-DC conversion.
The TPS6200x product line was designed specifically for ultra-low-power, battery-operated portable electronics requiring high efficiency across wide load ranges and minimal external components - targeting handheld, audio, and communication devices.
FAQ
What is the output voltage tolerance of the TPS62001DGSG4 under full load and temperature range?
The TPS62001DGSG4 delivers a fixed 1-V output with ±3% tolerance across 10 mA to 600 mA load current, –40°C to 85°C ambient temperature, and 2.5 V to 5.5 V input voltage. This specification is verified per TI's SLVS294F datasheet Section 7.5, ensuring compatibility with 1-V core logic rails in portable processors without requiring post-regulation trimming.
Does the TPS62001DGSG4 require external feedback resistors to set its output voltage?
No, the TPS62001DGSG4 does not require external feedback resistors. As a fixed-output variant in the TPS6200x family, it uses an internal resistor divider to regulate precisely to 1 V. The FB pin is internally connected and must not be externally loaded - unlike the adjustable TPS62000DGSG4, which requires R1/R2 and a feedforward capacitor.
How does the SYNC pin affect efficiency and noise performance in the TPS62001DGSG4?
When SYNC is pulled low (GND), the TPS62001DGSG4 operates in automatic PFM/PWM mode, maximizing light-load efficiency (50 μA IQ) but producing variable-frequency switching noise. When SYNC is pulled high (VIN), it forces fixed-frequency PWM operation - reducing spectral noise peaks for EMI-sensitive applications at the expense of lower light-load efficiency.
What is the minimum input voltage required for the TPS62001DGSG4 to maintain regulation at 1-V output?
The TPS62001DGSG4 maintains regulation down to a minimum input voltage of 2 V, as specified in Section 7.3 of the datasheet. Its 100% duty-cycle capability allows it to sustain 1-V output even as VIN drops to ~1.1 V (with ~100-mV dropout), though guaranteed operation begins at 2 V. Undervoltage lockout disables the device below ~1.6 V to prevent erratic behavior.
Can the TPS62001DGSG4 be used with a 47-μF output capacitor?
Yes, a 47-μF output capacitor is recommended for the TPS62001DGSG4 only when the output voltage is below 1.8 V - which applies directly since its fixed output is 1 V. TI specifies 47 μF (not 10 μF) for VOUT < 1.8 V to ensure stability, adequate hold-up time, and acceptable ripple under transient load steps.
TPS62001DGSG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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):
- 0.9V
- 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
TPS62001DGSG4 FAQ
1.How can I place an order for TPS62001DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62001DGSG4 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 TPS62001DGSG4 reliable?
The price and inventory of TPS62001DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62001DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS62001DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62001DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62001DGSG4?
TPS62001DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62001DGSG4 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 TPS62001DGSG4?
For technical support, including TPS62001DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62001DGSG4 requirements.
6.How does Aetrix verify that TPS62001DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS62001DGSG4 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 TPS62001DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS62001DGSG4?
All TPS62001DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62001DGSG4, 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 TPS62001DGSG4 part is unused and in its original packaging.
Return procedure for TPS62001DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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