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Texas Instruments TPS62005DGSR
- Part No.:
- TPS62005DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62005DGSR.pdf
- Description:
- IC REG BUCK 1.8V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
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Product details
Overview
TPS62005DGSR from Texas Instruments is a fixed-output 1.9 V synchronous step-down DC-DC converter with up to 600 mA output current, 750 kHz typical switching frequency, and 50 μA quiescent current in power-save mode. It operates from 2 V to 5.5 V input and delivers high efficiency (>95% at 3.6 VIN/2.5 VOUT, 200 mA) for battery-powered portable electronics.
For engineers reviewing the TPS62005DGSR datasheet, TPS62005DGSR pinout, TPS62005DGSR application, or TPS62005DGSR equivalent, key selection criteria include its pin-programmable current limit (600 mA/1.2 A), SYNC-controlled PFM/PWM mode selection, PG open-drain power-good signal, and VSSOP-10 (3.0 mm × 3.0 mm) package compatibility with space-constrained handheld designs.
Technical Context
The TPS62005DGSR implements a current-mode PFM/PWM control architecture with internal slope compensation and soft-start. Its synchronous rectification uses integrated P-channel and N-channel MOSFETs, enabling 100% duty-cycle operation near dropout and eliminating external diode losses.
Functional modes are determined by the SYNC pin: grounded for automatic PFM/PWM transition (high light-load efficiency), tied to VIN for forced PWM (fixed 750 kHz, low EMI), or driven by external 500–1000 kHz clock for synchronization. The ILIM pin selects switch current limit (600 mA or 1.2 A), and the PG pin provides open-drain output with 92% VOUT threshold and 2.5% hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.9 V ±4% over load and line; enables direct powering of 1.8–1.9 V logic rails 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 (2.0–4.5 V), and USB 5 V sources. |
| Max Output Current | 600 mA at VIN ≥2.5 V (3-cell); 200 mA at VIN ≥2 V (2-cell); defines usable load range for portable SoC core supplies. |
| Quiescent Current | 50 μA typical in PFM mode; extends battery life in standby/sleep states of handheld devices. |
| Switching Frequency | 750 kHz typical (500–1000 kHz sync range); allows use of compact 10 μH inductors and low-ESR ceramic capacitors. |
| Efficiency | 95% at 3.6 VIN/2.5 VOUT, 200 mA; minimizes thermal dissipation in sealed enclosures and extends runtime. |
| Shutdown Current | 0.1 μA typical; ensures negligible battery drain during system off-state. |
Pinout & Package
TPS62005DGSR is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5 mm pitch, optimized for high-density PCB layouts in portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2–5.5 V supply; requires 10 μF input capacitor for stability and ripple suppression. |
| FC (Pin 2) | Supply bypass | High-frequency decoupling node; must connect 0.1 μF capacitor close to pin for noise immunity. |
| GND (Pin 3) | Analog ground | Reference for control circuitry; separate from PGND to minimize noise coupling into error amplifier. |
| PG (Pin 4) | Power-good indicator | Open-drain output active high when VOUT ≥92% nominal; requires external pull-up for system sequencing. |
| FB (Pin 5) | Feedback reference | Internally connected to 1.9 V divider; not user-accessible-no external resistor network required. |
| ILIM (Pin 6) | Current limit select | Ground for 600 mA limit; tie to VIN for 1.2 A limit-configures peak switch current before foldback. |
| SYNC (Pin 7) | Mode control | GND = auto PFM/PWM; VIN = forced PWM; external 500–1000 kHz clock = synchronized operation. |
| EN (Pin 8) | Enable input | Logic high (≥1.3 V) enables regulation; logic low (<0.4 V) disables device, reducing IQ to <1 μA. |
| L (Pin 9) | Switch node | Connects to inductor; carries high dv/dt switching waveform-requires tight layout and ground plane. |
| PGND (Pin 10) | Power ground | Return path for high-current switch and inductor; must be connected to power plane, separate from GND. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, reduce conduction loss, and improve efficiency by ~10% vs. asynchronous designs. |
| Antiringing switch | Active in fixed-output versions (including TPS62005DGSR) to suppress parasitic LC oscillation during DCM, lowering radiated EMI. |
| Internal soft-start | 1 ms typical ramp time prevents output overshoot and inrush current during enable-critical for sensitive downstream logic. |
| Undervoltage lockout (UVLO) | Activates below ~1.6 V VIN; prevents erratic startup and brownout operation in weak battery conditions. |
| 100% duty-cycle mode | Enables LDO-like operation near dropout (VIN ≈ VOUT), maintaining regulation down to VIN – VDS(on) of P-MOSFET. |
Applications
| Cellular Phones | USB-Based DSL Modems |
|---|---|
|
Use Scenario: Powering baseband processor core voltage (1.8–1.9 V) from single-cell Li-ion battery (2.7–4.2 V). IC Role / Device Role / Timing Role: Primary step-down regulator delivering stable 1.9 V at up to 600 mA with dynamic load transient response. Use Value: 95% efficiency at mid-load extends talk time; 50 μA quiescent current preserves standby battery life. |
Use Scenario: Generating 1.9 V rail for USB PHY and Ethernet MAC in compact DSL modem adapters. IC Role / Device Role / Timing Role: Compact, low-noise DC-DC converter replacing linear regulators to meet USB power budget constraints. Use Value: VSSOP-10 footprint fits tight board space; SYNC pin enables synchronization to USB frame clock to avoid beat frequencies. |
| Digital Cameras | Handheld PCs / PDAs |
|
Use Scenario: Supplying image sensor digital core and ISP logic requiring clean, regulated 1.9 V from 3.3 V or Li-ion source. IC Role / Device Role / Timing Role: High-efficiency synchronous buck converter with antiringing switch to minimize EMI near sensitive analog imaging circuits. Use Value: Low-noise operation prevents switching artifacts in captured images; PG signal enables safe processor boot sequencing. |
Use Scenario: Powering ARM-based application processor cores in legacy PDA platforms with 2–3-cell NiMH batteries. IC Role / Device Role / Timing Role: Adjustable-input, fixed-output buck converter supporting wide battery voltage range (2.0–4.5 V) and variable load profiles. Use Value: Pin-programmable ILIM allows matching current capability to processor peak demand; shutdown current <1 μA enables long suspend duration. |
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 |
|---|---|---|---|
| TPS62004DGSR | Fixed 1.8 V output; identical package, pinout, and functional features. | Used where 1.8 V logic compliance is required instead of 1.9 V; same PCB layout but different feedback network (internal only). | Select TPS62004DGSR when system voltage tolerance mandates 1.8 V nominal, e.g., certain FPGA I/O banks or memory interfaces. |
| TPS62008DGSR | Fixed 2.5 V output; shares same control architecture, SYNC/ILIM/EN functions, and VSSOP-10 package. | Targets higher-voltage microcontrollers or analog subsystems needing 2.5 V; requires no layout change but alters output filtering. | Choose TPS62008DGSR for applications requiring 2.5 V rail with identical efficiency and light-load behavior-ideal for mixed-signal SoCs. |
Compared with TPS62005DGSR, TPS62004DGSR offers tighter 1.8 V regulation for legacy logic families, while TPS62008DGSR provides higher headroom for analog peripherals; all three share identical thermal performance, footprint, and control interface-enabling family-based BOM optimization.
Availability
TPS62005DGSR is available at Aetrix Electronics and suitable for cellular phones, USB-based DSL modems, digital cameras, and handheld PCs requiring stable component supply across production lifecycles.
Supply support for TPS62005DGSR 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 portable electronics powered by single-cell batteries, emphasizing high light-load efficiency, small solution size, and robust operation across wide input voltage ranges.
FAQ
What is the output voltage accuracy of the TPS62005DGSR under full load?
The TPS62005DGSR delivers 1.9 V output with ±4% accuracy across 0–600 mA load, 2–5.5 V input, and –40°C to 85°C ambient. This specification holds for both light and heavy loads due to internal voltage reference stability and current-mode control loop precision. The TPS62005DGSR maintains this tolerance without external calibration or trimming components.
Can the TPS62005DGSR operate from a 2.0 V input supply?
Yes, the TPS62005DGSR supports 2.0 V minimum input voltage per datasheet specifications. At 2.0 V input, it delivers up to 200 mA output current while maintaining regulation and 92% power-good threshold. Operation below 2.0 V triggers undervoltage lockout, disabling switching until VIN rises above ~1.6 V.
How does the SYNC pin affect efficiency and noise performance of the TPS62005DGSR?
When SYNC is grounded, the TPS62005DGSR enters power-save mode, automatically switching between PFM (light load) and PWM (moderate/heavy load) to maximize efficiency-achieving 95% at 200 mA and >85% at 1 mA. When SYNC is tied to VIN, it forces fixed-frequency PWM operation, reducing output voltage ripple and simplifying EMI filtering at the cost of lower light-load efficiency.
What is the purpose of the ILIM pin on the TPS62005DGSR, and how is it configured?
The ILIM pin on the TPS62005DGSR sets the peak switch current limit: connecting ILIM to GND configures 600 mA typical limit, while tying it to VIN selects 1.2 A typical limit. This configuration determines maximum deliverable current before current-limit foldback activates, allowing design flexibility for varying load transients without changing external components.
Does the TPS62005DGSR require external feedback resistors to set its output voltage?
No, the TPS62005DGSR has an internally trimmed 1.9 V feedback divider and does not require external resistors. The FB pin is internally connected to the reference node-unlike the adjustable TPS62000, which uses external resistors. This eliminates component count, layout sensitivity, and tolerance drift associated with external feedback networks.
TPS62005DGSR 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- 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
TPS62005DGSR FAQ
1.How can I place an order for TPS62005DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62005DGSR 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 TPS62005DGSR reliable?
The price and inventory of TPS62005DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62005DGSR is usually 5 days.
3.What payment methods are accepted for TPS62005DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62005DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62005DGSR?
TPS62005DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62005DGSR 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 TPS62005DGSR?
For technical support, including TPS62005DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62005DGSR requirements.
6.How does Aetrix verify that TPS62005DGSR is sourced from the original manufacturer or authorized distributors?
All TPS62005DGSR 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 TPS62005DGSR meets industry standards.
7.What is the process for return or replacement of TPS62005DGSR?
All TPS62005DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62005DGSR, 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 TPS62005DGSR part is unused and in its original packaging.
Return procedure for TPS62005DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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