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Texas Instruments TPS62000DGSR
- Part No.:
- TPS62000DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62000DGSR.pdf
- Description:
- IC REG BUCK ADJ 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,921
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Product details
Overview
TPS62000DGSR from Texas Instruments is an adjustable-output synchronous step-down DC-DC converter optimized for low-power portable systems, delivering up to 600 mA output current with >95% peak efficiency at 3.6 V input/2.5 V output, operating from 2 V to 5.5 V input, and featuring pin-programmable current limit (600 mA or 1.2 A) and PFM/PWM mode switching.
For engineers reviewing the TPS62000DGSR datasheet, TPS62000DGSR pinout, TPS62000DGSR application, or TPS62000DGSR equivalent, key selection considerations include its 10-pin VSSOP package, 750 kHz typical switching frequency, 50 μA quiescent current in power-save mode, 0.45 V internal reference voltage, and support for external synchronization up to 1 MHz.
Technical Context
The TPS62000DGSR implements a current-mode synchronous buck topology with integrated P-channel high-side and N-channel low-side MOSFETs, enabling high efficiency across load ranges via automatic transition between fixed-frequency PWM (moderate-to-heavy loads) and pulse-frequency modulation PFM (light loads). Its internal compensation eliminates need for external compensation components.
It supports three functional modes via the SYNC pin: GND enables PFM/PWM auto-switching for wide-load efficiency; VIN forces continuous PWM for noise-sensitive applications; and external CMOS clock (500–1000 kHz) enables system-level timing coordination. The device also features 100% duty-cycle operation for ultra-low dropout and antiringing switch control (disabled in adjustable versions).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| 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. |
| Output Voltage Range | 0.8 V to VIN - adjustable via external resistor divider; reference voltage is 0.45 V, enabling precise low-voltage rail generation for modern low-power cores. |
| Max Output Current | 600 mA (ILIM = GND) or 1.2 A (ILIM = VIN) - pin-selectable current limit allows flexible trade-off between thermal margin and peak load capability. |
| Quiescent Current | 50 μA (typical, PFM mode) - enables multi-day battery life in always-on sensor or standby subsystems. |
| Switching Frequency | 750 kHz (typical, free-running); 500–1000 kHz (synchronized) - permits use of compact 10 μH inductors and reduces EMI filtering burden. |
| Efficiency | 95% (at 3.6 VIN/2.5 VOUT/200 mA) - high conversion efficiency minimizes thermal dissipation in space-constrained handheld enclosures. |
| Shutdown Current | <1 μA - ensures negligible battery drain during system sleep or power-off states. |
Pinout & Package
TPS62000DGSR is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad (PGND-connected) for enhanced thermal performance in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Accepts 2–5.5 V supply; requires 10 μF ceramic input capacitor placed near pin for stable high-frequency decoupling. |
| FC (Pin 2) | Input bypass | High-frequency supply filter node; must connect 0.1 μF capacitor directly to VIN to suppress switching noise. |
| GND (Pin 3) | Analog ground reference | Reference for internal error amplifier and comparator; separate from PGND to minimize noise coupling into feedback path. |
| PG (Pin 4) | Power-good open-drain output | Signals valid regulation when VOUT ≥92% nominal; requires external pull-up to VOUT; active after 100 μs startup delay. |
| FB (Pin 5) | Feedback input | Connects to resistor divider for adjustable output; internal 0.45 V reference enables precise VOUT = 0.45 × (1 + R1/R2). |
| ILIM (Pin 6) | Current limit select | GND = 600 mA limit; VIN = 1.2 A limit - sets peak switch current threshold without external components. |
| SYNC (Pin 7) | Mode control / sync input | GND = PFM/PWM auto-switching; VIN = forced PWM; external CMOS clock = synchronized operation (500–1000 kHz). |
| EN (Pin 8) | Enable control | Active-high logic input; <0.4 V disables device, reducing IQ to <1 μA; internal pull-down ensures default-off behavior. |
| L (Pin 9) | Switch node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance trace and proper grounding to PGND. |
| PGND (Pin 10) | Power ground return | Low-impedance return path for inductor current and internal power switches; must be connected to PCB ground plane under IC body. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, reducing conduction loss and improving efficiency by ~10% vs. asynchronous designs. |
| Auto PFM/PWM mode transition | Seamlessly shifts between high-efficiency PFM (light load) and low-noise PWM (heavy load) without external control - maintains >85% efficiency down to 1 mA. |
| Internal soft-start | 1 ms typical ramp time prevents output overshoot and limits inrush current during power-up, eliminating need for external soft-start circuitry. |
| Undervoltage lockout (UVLO) | Activates at ~1.6 V (min 1.2 V) on VIN - prevents erratic operation during brownout or battery depletion, ensuring clean enable/disable behavior. |
| 100% duty-cycle operation | Enables dropout as low as RDS(on) × IOUT - sustains regulation even when VIN approaches VOUT, critical for Li-ion end-of-discharge operation. |
Applications
| Portable Audio Power Supply | USB-Powered DSL Modem |
|---|---|
|
Use Scenario: MP3 player with ARM-based audio processor requiring stable 1.2 V core and 2.5 V I/O rails from single Li-ion cell. IC Role / Device Role / Timing Role: Primary step-down regulator generating low-noise, tightly regulated output voltages for digital baseband and analog audio sections. Use Value: 50 μA quiescent current extends playback time; PFM mode maintains >90% efficiency at 5–20 mA standby loads; SYNC pin enables noise-free operation during audio DAC sampling. |
Use Scenario: Compact DSL modem powered via USB 5 V, needing isolated 3.3 V and 1.8 V rails for PHY and controller. IC Role / Device Role / Timing Role: Efficient intermediate bus converter stepping USB 5 V down to 3.3 V, feeding secondary LDOs or downstream converters. Use Value: 95% efficiency at 300 mA reduces thermal load in sealed plastic enclosure; 10-pin VSSOP footprint saves board area versus discrete solutions; PG signal enables safe firmware boot sequencing. |
| Handheld PDA System Rail | Low-Power Sensor Node |
|
Use Scenario: Palm-sized PDA with dual-core application processor, display driver, and wireless interface operating from 2-cell NiMH battery (2.4–3.0 V). IC Role / Device Role / Timing Role: Main system power converter delivering 1.5 V core and 2.8 V I/O, dynamically adjusting mode via SYNC based on CPU activity. Use Value: Pin-programmable 600 mA/1.2 A current limit accommodates bursty processor loads; 750 kHz switching allows small 10 μH inductor; EN pin enables full-system power gating. |
Use Scenario: Battery-operated environmental sensor node transmitting data intermittently via BLE, requiring microamp-level sleep current. IC Role / Device Role / Timing Role: Always-on power source for MCU and sensor ASIC, maintaining regulation during deep-sleep cycles with minimal self-consumption. Use Value: <1 μA shutdown current preserves battery over multi-year deployments; 0.8 V minimum output supports next-gen ultra-low-voltage MCUs; thermal performance validated from –40°C to 85°C. |
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 |
|---|---|---|---|
| TPS62040DRCR | Higher 2-MHz switching frequency; 3–6 V input; fixed 1.2 V or adjustable output; 1.2 A max output; 16-pin QFN package. | Better suited for space-constrained designs needing smaller magnetics; lacks SYNC pin and ILIM programming. | Select TPS62040DRCR when board area is critical and higher frequency operation is acceptable; not drop-in due to different pin count and no ILIM/SYNC flexibility. |
| TPS62231DRVR | 3-MHz operation; 2.05–6.0 V input; 0.6–5.5 V adjustable output; 600 mA max; 6-pin WSON package; 17 μA quiescent current. | Ultra-low IQ ideal for long-life coin-cell applications; no PG, SYNC, or ILIM pins; simplified feature set. | Choose TPS62231DRVR for lowest possible quiescent current in energy-harvesting or maintenance-free sensors; sacrifices configurability and monitoring features. |
Compared with TPS62000DGSR, TPS62040DRCR offers higher integration density but less operational flexibility, while TPS62231DRVR achieves superior light-load efficiency at the cost of system-level control and fault reporting capabilities.
Availability
TPS62000DGSR is available at Aetrix Electronics and suitable for portable audio players, USB-powered network interface cards, handheld PDAs, and low-power sensor nodes requiring stable component supply with consistent parametric performance and long-term manufacturability.
Supply support for TPS62000DGSR 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 and manufacturing.
The TPS6200x product line was engineered specifically for battery-powered portable electronics demanding high efficiency across wide load ranges, minimal external components, and robust operation from depleted battery sources.
FAQ
What is the minimum input voltage required for TPS62000DGSR to regulate properly?
The TPS62000DGSR has a specified minimum input voltage of 2 V and includes undervoltage lockout that activates below approximately 1.6 V. It can operate down to 1.8 V in typical conditions but guarantees regulation only above 2 V per datasheet specifications. Below this threshold, the device disables output to prevent unstable operation - a critical safeguard for Li-ion batteries nearing end-of-discharge.
How does the ILIM pin affect current limiting in TPS62000DGSR?
The ILIM pin on the TPS62000DGSR selects between two factory-trimmed current limits: connecting ILIM to GND sets the switch current limit to typically 600 mA, while connecting it to VIN raises the limit to typically 1.2 A. This pin-programmable feature allows designers to optimize thermal performance and inductor sizing without changing the IC part number - essential for balancing peak load capability against PCB area and cost in portable systems.
Can TPS62000DGSR be used with an output voltage lower than 0.8 V?
No, the TPS62000DGSR is not specified or guaranteed to operate with output voltages below 0.8 V. Its internal 0.45 V reference and feedback architecture support an adjustable range from 0.8 V to VIN, as confirmed in Section 7.5 of the datasheet. Attempting sub-0.8 V operation risks regulation inaccuracy, instability, or failure to maintain regulation - especially given the 3% output voltage tolerance specification across the rated range.
What is the purpose of the FC pin on TPS62000DGSR, and how should it be connected?
FC (Filter Capacitor) on the TPS62000DGSR is a dedicated high-frequency bypass node for the VIN supply. It must be connected to VIN through a 0.1 μF ceramic capacitor placed as close as possible to the pin. This capacitor filters switching noise injected back into the input rail, preventing interference with upstream regulators or sensitive analog circuitry - a requirement explicitly stated in the Pin Functions table and Layout Guidelines section of the datasheet.
Does TPS62000DGSR support 100% duty-cycle operation, and when is it activated?
Yes, the TPS62000DGSR supports 100% duty-cycle operation, which activates automatically when the input voltage approaches the output voltage and the required duty cycle exceeds approximately 95%. In this mode, the P-channel high-side switch remains continuously on, allowing the output to track VIN minus the RDS(on) drop - enabling regulation down to very low dropout conditions, such as during Li-ion battery discharge from 3.0 V to 2.8 V while powering a 2.5 V rail.
TPS62000DGSR 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:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- 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
TPS62000DGSR FAQ
1.How can I place an order for TPS62000DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62000DGSR 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 TPS62000DGSR reliable?
The price and inventory of TPS62000DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62000DGSR is usually 5 days.
3.What payment methods are accepted for TPS62000DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62000DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62000DGSR?
TPS62000DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62000DGSR 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 TPS62000DGSR?
For technical support, including TPS62000DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62000DGSR requirements.
6.How does Aetrix verify that TPS62000DGSR is sourced from the original manufacturer or authorized distributors?
All TPS62000DGSR 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 TPS62000DGSR meets industry standards.
7.What is the process for return or replacement of TPS62000DGSR?
All TPS62000DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62000DGSR, 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 TPS62000DGSR part is unused and in its original packaging.
Return procedure for TPS62000DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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