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Texas Instruments TPS62052DGSG4
- Part No.:
- TPS62052DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62052DGSG4.pdf
- Description:
- IC REG BUCK 1.5V 800MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,340
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Product details
Overview
TPS62052DGSG4 from Texas Instruments is a fixed-output 1.5 V, 800-mA synchronous step-down DC-DC converter in a 10-pin VSSOP (DGS) package. It operates from 2.7 V to 10 V input, delivers up to 95% peak efficiency, features 12 µA typical quiescent current in power-save mode, and supports external clock synchronization up to 1.2 MHz - ideal for Li-ion–powered portable systems requiring stable low-voltage rail generation.
For engineers reviewing the TPS62052DGSG4 datasheet, TPS62052DGSG4 pinout, TPS62052DGSG4 application, or TPS62052DGSG4 equivalent, key selection considerations include its fixed 1.5 V output with ±3% tolerance, 100% duty-cycle capability for low-dropout operation, open-drain LBO/PG outputs with defined trip thresholds, and SYNC-controlled transition between forced-PWM and PFM modes.
Technical Context
The TPS62052DGSG4 implements voltage-mode PWM control with input voltage feed-forward for fast line/load transient response. Its integrated N- and P-channel MOSFETs enable synchronous rectification, eliminating the need for an external diode and improving efficiency across load ranges.
It operates at a nominal 850 kHz switching frequency, enters PFM mode below ~100–200 mA (depending on input voltage), and supports forced fixed-frequency PWM when SYNC ≥ 1.5 V - enabling noise-sensitive applications to avoid variable-frequency artifacts while maintaining regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±3% - eliminates external feedback resistors; suitable for core supplies of low-voltage logic and analog ICs. |
| Max Output Current | 800 mA - supports moderate-power digital loads such as DSPs, microcontrollers, and interface ICs without thermal derating under typical PCB layout. |
| Input Voltage Range | 2.7 V to 10 V - compatible with single/dual Li-ion, 3–5-cell alkaline/NiMH, and intermediate industrial rails. |
| Quiescent Current | 12 µA typical in PFM mode - enables >1-year battery life in always-on sensor nodes drawing <10 µA average system current. |
| Switching Frequency | 850 kHz nominal (600–1200 kHz sync range) - allows use of compact 10 µH inductors and 22 µF ceramic output capacitors. |
| Duty Cycle Range | 100% maximum - sustains regulation down to VIN = VOUT + dropout losses (~1.6 V min input for 1.5 V out). |
| Thermal Resistance | RθJA = 154 °C/W - requires minimal copper area for operation up to 85°C ambient at full load with standard 2-layer board. |
Pinout & Package
Package: 10-pin VSSOP (DGS), 3.00 mm × 3.00 mm body size, exposed thermal pad (PGND-connected), MSOP-compatible footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2.7–10 V; connects to input capacitor (10 µF typical); must be decoupled close to pin. |
| LBO (Pin 2) | Open-drain low-battery output | Asserts low when LBI < 1.21 V ±1.5%; requires external pullup to ≤6 V rail; disabled in shutdown. |
| GND (Pin 3) | Analog ground reference | Reference for FB, PG, LBI; separate from PGND to minimize noise coupling into feedback path. |
| PG (Pin 4) | Open-drain power-good output | Floats high when VOUT > 95% of 1.5 V (i.e., >1.425 V); requires external pullup; invalid for first 250 µs after enable. |
| FB (Pin 5) | Feedback input | Internally tied to 1.5 V output divider; not user-accessible - fixed-output configuration disables external resistor network. |
| LBI (Pin 6) | Low-battery input | Monitors battery via external resistor divider; trip threshold 1.21 V; hysteresis 15 mV; leakage <0.1 µA. |
| SYNC (Pin 7) | Sync mode control | High (>1.5 V): forces fixed-frequency PWM; Low (<0.3 V): enables PFM/PWM auto-switching; floating = internal oscillator. |
| EN (Pin 8) | Enable input | Active-high; VIH = 1.3 V min; pulls device into <2 µA shutdown when low; includes 100 mV hysteresis. |
| SW (Pin 9) | Switch node | Connects to inductor; carries high dv/dt switching waveform; requires tight loop with PGND and input cap. |
| PGND (Pin 10) | Power ground | Return path for high-current switch and inductor; must be connected directly to power plane under IC; separate from GND. |
Key Features
| Feature | Design Value |
|---|---|
| 12-µA quiescent current in PFM mode | Enables multi-year battery life in ultra-low-power wake-on-event systems without sacrificing regulation accuracy. |
| Synchronizable 600–1200 kHz operation | Allows EMI reduction by aligning switching noise to unused spectral bands or avoiding sensitive IF frequencies. |
| 100% duty cycle capability | Maintains regulation with input as low as ~1.6 V - critical for deep discharge operation of single-cell Li-ion batteries. |
| Integrated soft-start (1 ms typical) | Prevents input voltage sag and inrush-induced reset during cold boot of microcontrollers or FPGAs. |
| Overtemperature and overcurrent protection | Thermal shutdown at 145°C and cycle-by-cycle current limiting prevent damage during sustained overload or poor heatsinking. |
Applications
| Cellular Phone Baseband | Digital Camera Image Sensor |
|---|---|
Use Scenario: Powers baseband processor core (1.5 V) from single-cell Li-ion (3.0–4.2 V) during active call or data transmission. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering regulated 1.5 V at up to 800 mA with dynamic load steps up to 400 mA/µs. Use Value: Maintains stable core voltage during RF transmit bursts; PFM mode extends standby time; SYNC pin enables noise-free audio codec operation. | Use Scenario: Supplies 1.5 V to CMOS image sensor during exposure and readout phases in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Low-noise, fast-transient power source synchronized to sensor frame timing to suppress switching artifacts in captured images. Use Value: Forced-PWM mode (SYNC = HIGH) eliminates frequency variation that could alias into image data; 12 µA quiescent current minimizes dark-current drift during idle. |
| Handheld PDA Application Processor | Low-Power DSP Audio Codec |
Use Scenario: Generates 1.5 V core rail for ARM9-class application processor in organizer devices operating from dual alkaline cells (3.0–3.6 V). IC Role / Device Role / Timing Role: High-efficiency step-down converter supporting burst-mode CPU operation with 10–800 mA dynamic load profile. Use Value: 95% peak efficiency reduces thermal load in sealed plastic enclosures; 100% duty cycle sustains operation down to 2.8 V input as batteries deplete. | Use Scenario: Powers sigma-delta audio DAC and analog front-end in battery-operated voice recorder with always-on wake detection. IC Role / Device Role / Timing Role: Ultra-low-quiescent regulator supplying clean 1.5 V to analog signal chain during sleep and active audio playback. Use Value: 12 µA PFM current enables >2-year shelf life; PG output signals valid rail to MCU before ADC initialization; LBO warns of end-of-life battery. |
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 | Adjustable 0.7–6 V output; enhanced LBI comparator with 5 µA quiescent current in supervisor-only mode. | Used where programmable output or precise battery cutoff is required; not drop-in for fixed 1.5 V designs. | Select only if output voltage flexibility or tighter battery monitoring is needed - requires FB resistor redesign and LBI circuit validation. |
| TPS62056DGSG4 | Fixed 3.3 V output; identical package, pinout, and feature set except output voltage and internal divider resistance (700–1300 kΩ). | Direct substitute where 3.3 V rail is required instead of 1.5 V; same layout, thermal, and control behavior. | Drop-in replacement for 3.3 V applications; no changes to PCB, BOM, or firmware - only output voltage differs. |
Compared with TPS62052DGSG4, TPS62051DGSG4 offers design flexibility at the cost of added external components and validation effort, while TPS62056DGSG4 provides identical functionality for 3.3 V systems - making it the only true pin-and-function compatible alternative within the family.
Availability
TPS62052DGSG4 is available at Aetrix Electronics and suitable for cellular phones, handheld PDAs, digital cameras, and low-power DSP supplies requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62052DGSG4 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.
The TPS6205x product line was designed specifically for portable battery-powered systems requiring high efficiency across wide load ranges, minimal external components, and robust protection features - targeting space-constrained consumer and industrial edge devices.
FAQ
What is the output voltage tolerance of the TPS62052DGSG4 under full load and temperature range?
The TPS62052DGSG4 has a fixed 1.5 V output with ±3% tolerance across the full operating junction temperature range (–40°C to 125°C) and input voltage range (2.7 V to 10 V) at output currents from 0 mA to 600 mA. This specification is verified per TI's SLVS432F datasheet Section 8.5, ensuring predictable regulation for core logic rails without external trimming.
Does the TPS62052DGSG4 require external feedback resistors to set its output voltage?
No, the TPS62052DGSG4 does not require external feedback resistors. It is a fixed-output variant with an internal resistor divider configured for 1.5 V. The FB pin is internally connected and not user-accessible - unlike the adjustable TPS62050/TPS62051, which require external R1/R2 networks. This simplifies layout and eliminates resistor tolerance errors.
How does the SYNC pin affect efficiency and noise performance in the TPS62052DGSG4?
When SYNC is pulled high (>1.5 V), the TPS62052DGSG4 operates in forced fixed-frequency PWM mode, eliminating frequency modulation but reducing light-load efficiency (e.g., ~70% at 10 mA vs. ~85% in PFM). When SYNC is low (<0.3 V), it enables automatic PFM/PWM mode switching, maximizing efficiency across load range but introducing variable switching frequency - useful for EMI-sensitive audio or imaging circuits where fixed-frequency noise is easier to filter.
What is the minimum input voltage required for the TPS62052DGSG4 to maintain regulation at 1.5 V output?
The TPS62052DGSG4 supports 100% duty cycle operation, allowing regulation down to VIN ≈ VOUT + IOUT × RDS(ON)_PCH. With worst-case P-channel RDS(ON) of 0.85 Ω at 2.7 V input and 800 mA load, minimum functional VIN is approximately 1.6 V. However, reliable startup and UVLO release require VIN ≥ 2.7 V per recommended operating conditions - so practical minimum is 2.7 V.
Can the TPS62052DGSG4 be used in automotive applications?
The TPS62052DGSG4 is specified for –40°C to 85°C free-air temperature and lacks AEC-Q200 qualification, automotive-grade screening, or extended temperature grade (–40°C to 125°C) packaging. While it may function in benign under-dash environments, TI does not recommend or guarantee its use in automotive safety-critical or high-reliability systems - select automotive-qualified alternatives like the TPS62130A-Q1 for such applications.
TPS62052DGSG4 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- 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
TPS62052DGSG4 FAQ
1.How can I place an order for TPS62052DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62052DGSG4 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 TPS62052DGSG4 reliable?
The price and inventory of TPS62052DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62052DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS62052DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62052DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62052DGSG4?
TPS62052DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62052DGSG4 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 TPS62052DGSG4?
For technical support, including TPS62052DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62052DGSG4 requirements.
6.How does Aetrix verify that TPS62052DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS62052DGSG4 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 TPS62052DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS62052DGSG4?
All TPS62052DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62052DGSG4, 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 TPS62052DGSG4 part is unused and in its original packaging.
Return procedure for TPS62052DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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