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Texas Instruments TPS62050DGSG4
- Part No.:
- TPS62050DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62050DGSG4.pdf
- Description:
- IC REG BUCK ADJ 800MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,063
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Product details
Overview
TPS62050DGSG4 from Texas Instruments is an adjustable-output, 800-mA synchronous step-down DC-DC converter optimized for battery-powered portable electronics. It operates from 2.7 V to 10 V input, delivers 0.7 V to 6 V output, achieves up to 95% efficiency at 300 mA, and features 12 µA typical quiescent current in power-save mode - enabling long runtime in cellular phones and handheld PCs.
For engineers reviewing the TPS62050DGSG4 datasheet, TPS62050DGSG4 pinout, TPS62050DGSG4 application, or TPS62050DGSG4 equivalent, key selection criteria include its 10-pin VSSOP (DGS) package, 850 kHz nominal switching frequency, adjustable feedback architecture (0.5 V reference), SYNC-controlled PWM/PFM mode transition, and integrated low-battery detection interface via LBI/LBO pins.
Technical Context
The TPS62050DGSG4 implements voltage-mode PWM control with input-voltage feedforward for fast line/load regulation, using integrated N- and P-channel MOSFETs with typical RDS(ON) of 400 mΩ (P-ch) and 300 mΩ (N-ch) at 7.2 V input. Its dual-mode operation - fixed-frequency PWM when SYNC ≥ 1.5 V, and automatic PFM at light loads when SYNC = GND - enables high efficiency across 10 µA to 800 mA output current range.
It integrates a 0.5 V precision internal reference, power-good comparator with 250 µs delay and 95–98.5% trip threshold, undervoltage lockout (1.6 V), thermal shutdown (145 °C), and soft-start limiting inrush current via stepped 200/400/800 mA current limits. The FB pin directly connects to the error amplifier for external resistor-divider programming of output voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 10 V - supports single/dual Li-ion or 3–5-cell alkaline/NiMH battery systems without external regulators. |
| Output Voltage Range | 0.7 V to 6 V (adjustable via FB divider) - enables direct supply to core voltages of DSPs, FPGAs, and low-VCC microcontrollers. |
| Max Output Current | 800 mA - sufficient for powering baseband processors, camera modules, or multi-rail PMIC subsystems. |
| Quiescent Current | 12 µA typical in power-save mode - extends battery life in standby/sleep states of portable devices. |
| Switching Frequency | 850 kHz nominal (600–1200 kHz syncable) - allows use of compact 10 µH inductors and 10–22 µF ceramic capacitors. |
| Feedback Reference | 0.5 V ±3% - provides stable regulation with minimal divider current, reducing power loss in high-impedance networks. |
| Efficiency Peak | 95% at 300 mA, VIN = 7.2 V, VOUT = 3.3 V - minimizes thermal stress and improves system-level energy conversion. |
Pinout & Package
TPS62050DGSG4 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 space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2.7–10 V supply; requires local 10 µF ceramic decoupling to minimize input ripple and EMI. |
| LBO (Pin 2) | Open-drain low-battery output | Asserts logic-low when LBI voltage drops below 1.21 V ±1.5%; requires external pullup to VOUT or ≤6 V rail. |
| GND (Pin 3) | Analog ground | Reference node for FB, PG, LBI; must be separated from PGND in high-current layouts to avoid noise coupling. |
| PG (Pin 4) | Open-drain power-good flag | Floats high when VOUT ≥ 95% nominal; valid only after 250 µs post-enable; requires pullup resistor. |
| FB (Pin 5) | Feedback input | Connects to resistor divider; regulates output by comparing divider voltage to 0.5 V internal reference. |
| LBI (Pin 6) | Low-battery input | Monitors battery voltage via external divider; trip point 1.21 V; disabled during shutdown. |
| SYNC (Pin 7) | Mode control input | High (≥1.5 V): forces fixed PWM; Low (GND): enables auto PFM; floating not recommended. |
| EN (Pin 8) | Enable input | Logic-high enables converter; logic-low reduces supply current to <2 µA; supports pushbutton sequencing. |
| SW (Pin 9) | Switch node | Drives external 10 µH inductor; carries high di/dt; requires tight loop area with PGND and output capacitor. |
| PGND (Pin 10) | Power ground | Return path for SW and internal MOSFETs; must connect directly to power plane under IC for thermal and EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output voltage (0.7–6 V) | Enables single BOM reuse across multiple voltage rails (e.g., 1.2 V core, 3.3 V I/O) via resistor selection. |
| 12-µA quiescent current in PFM mode | Reduces no-load power loss to <15 µW at 1.8 V output - critical for always-on sensor nodes and RTC backup supplies. |
| Synchronizable 600–1200 kHz clock input | Eliminates beat frequencies in multi-converter systems and simplifies EMI filtering by aligning switching edges. |
| 100% duty cycle capability | Supports ultra-low dropout operation (e.g., 3.6 V → 3.3 V) without external bypass, improving efficiency near battery end-of-life. |
| Integrated LBI/LBO low-battery monitor | Removes need for discrete supervisor IC; programmable trip point avoids premature shutdown in Li-ion discharge curves. |
| Internal soft-start (1 ms typical) | Prevents input voltage sag during startup from weak sources like coin cells or aging batteries. |
Applications
| Cellular Phone Power Management | Handheld PC Core Supply |
|---|---|
Use Scenario: Regulating Li-ion battery (3.0–4.2 V) to 1.2 V for application processor core and 2.8 V for RF transceiver. IC Role / Device Role / Timing Role: Primary synchronous buck converter providing dynamically scaled core voltage with PFM mode during idle periods. Use Value: 95% peak efficiency and 12 µA quiescent current extend talk time by >18% versus legacy linear regulators. | Use Scenario: Generating 1.8 V and 3.3 V rails from 7.2 V two-cell Li-ion pack in PDA with backlight and SD card interface. IC Role / Device Role / Timing Role: Adjustable buck regulator operating in forced PWM mode (SYNC = HIGH) to suppress noise coupling into touch-screen ADC. Use Value: Fixed 850 kHz switching enables deterministic EMI filtering and eliminates audible coil whine in audio-sensitive environments. |
| Digital Camera Image Sensor Bias | Low-Power DSP Supply |
Use Scenario: Delivering clean, low-noise 2.5 V bias to CMOS image sensor with fast transient response during exposure bursts. IC Role / Device Role / Timing Role: Synchronous buck converter with internal soft-start and 100% duty cycle support for minimum dropout during battery voltage decay. Use Value: 100 ns minimum on-time and 850 kHz switching ensure stable regulation even as battery drops to 2.8 V while maintaining <10 mV output ripple. | Use Scenario: Powering TI C5000-series DSP in portable medical device requiring sub-100 µA sleep current and rapid wake-up. IC Role / Device Role / Timing Role: Efficient step-down converter entering PFM mode automatically below 100 mA load, with EN pin enabling full system-level power gating. Use Value: <2 µA shutdown current and 250 µs PG assertion delay allow precise sequencing with FPGA configuration logic. |
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 |
|---|---|---|---|
| TPS62051DGSG4 | Enhanced LBI comparator with 5 µA quiescent current in LBI-active standby; identical pinout and electrical specs otherwise. | Required when precise, user-programmable battery undervoltage shutdown is needed without external SVS. | Select TPS62051DGSG4 only if LBI must initiate enable/disable sequencing prior to full converter start-up. |
| TPS62060DSGR | Smaller 6-pin WSON package; 1.2–6 V input; 0.6–5.5 V output; 600 mA max; 2.5 µA IQ; no LBI/LBO or PG pins. | Suitable for ultra-compact, cost-sensitive designs where battery monitoring and power-good signaling are omitted. | Choose TPS62060DSGR when board space is critical and system-level battery management is handled externally. |
Compared with TPS62051DGSG4, the TPS62050DGSG4 lacks pre-enable LBI supervision but offers identical regulation accuracy and efficiency; versus TPS62060DSGR, it trades package size and IQ for integrated power-good and battery-monitoring functions essential in portable safety-critical systems.
Availability
TPS62050DGSG4 is available at Aetrix Electronics and suitable for cellular phones, handheld PCs, digital cameras, and low-power DSP supplies requiring stable component supply across extended production lifecycles.
Supply support for TPS62050DGSG4 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TPS6205x product line was designed specifically for high-efficiency, low-quiescent-current power conversion in portable battery-operated devices - emphasizing small footprint, wide input range, and intelligent power-save mode transitions.
FAQ
What is the maximum output current capability of the TPS62050DGSG4?
The TPS62050DGSG4 delivers up to 800 mA continuous output current under thermal-limited conditions (TJ ≤ 125 °C), verified per TI SLVS432F datasheet Section 8.3. This rating assumes adequate PCB copper area for heat dissipation and operation within 2.7–10 V input range. Peak switch current limit is 1.2 A, supporting transient loads without foldback.
How does the TPS62050DGSG4 enter and exit power-save mode?
The TPS62050DGSG4 enters power-save (PFM) mode automatically when average output current falls below 100–200 mA (depending on input voltage) for ≥32 clock cycles, reducing quiescent current to 12 µA. It exits PFM and resumes PWM when output voltage drops 0.8% below nominal, triggering a pulse to restore regulation - all managed internally without external control signals.
Can the TPS62050DGSG4 be synchronized to an external clock, and what is the supported frequency range?
Yes, the TPS62050DGSG4 accepts an external clock signal on the SYNC pin for synchronization across 600 kHz to 1200 kHz. When synchronized, it disables PFM mode and operates in forced PWM for consistent EMI profile. The device detects rising edges and auto-recovers to internal 850 kHz oscillation within 8.3 µs if the external clock stops.
What is the function of the LBI and LBO pins on the TPS62050DGSG4?
The LBI (low-battery input) pin monitors a resistive divider from the battery to detect voltage drop below 1.21 V ±1.5%. When triggered, the open-drain LBO (low-battery output) pulls low to signal host MCU. Both functions are disabled during shutdown (EN = low), and LBI must be tied to GND if unused - ensuring no leakage path affects battery drain.
Does the TPS62050DGSG4 require an external compensation network?
No, the TPS62050DGSG4 uses internal compensation optimized for standard 10 µH inductors and 10–22 µF ceramic output capacitors. The voltage-mode control architecture with input-voltage feedforward eliminates need for external RC networks, simplifying layout and reducing BOM count while maintaining stability across input/output voltage and load variations.
TPS62050DGSG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 0.7V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 800mA
- Frequency - Switching:
- 850kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS62050DGSG4 FAQ
1.How can I place an order for TPS62050DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62050DGSG4 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 TPS62050DGSG4 reliable?
The price and inventory of TPS62050DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62050DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS62050DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62050DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62050DGSG4?
TPS62050DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62050DGSG4 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 TPS62050DGSG4?
For technical support, including TPS62050DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62050DGSG4 requirements.
6.How does Aetrix verify that TPS62050DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS62050DGSG4 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 TPS62050DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS62050DGSG4?
All TPS62050DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62050DGSG4, 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 TPS62050DGSG4 part is unused and in its original packaging.
Return procedure for TPS62050DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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