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Texas Instruments TPS62136RGXR
- Part No.:
- TPS62136RGXR
- Manufacturer:
- Texas Instruments
- Package:
- 11-VFQFN
- Datasheet:
-
TPS62136RGXR.pdf
- Description:
- IC REG BUCK ADJ 4A 11VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,990
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Product details
Overview
TPS62136RGXR from Texas Instruments is a synchronous step-down DC-DC converter using DCS-Control™ topology, delivering 4-A continuous output current with ±1% output voltage accuracy in PWM mode. It operates from 3 V to 17 V input and supports adjustable 0.8 V to 12 V output, enabling high-efficiency POL supplies for battery-powered embedded computers and SSD drives.
For engineers reviewing the TPS62136RGXR datasheet, TPS62136RGXR pinout, TPS62136RGXR application, or TPS62136RGXR equivalent, key selection considerations include its 1-MHz forced-PWM switching frequency, 18-µA quiescent current, active output discharge capability, and 3-mm × 2-mm VQFN-11 package with integrated power-good and soft-start functions.
Technical Context
The TPS62136RGXR implements DCS-Control™-a hybrid regulation architecture combining fast comparator-based transient response with internal voltage feedback compensation. It supports seamless transition between PWM and Power Save Mode (PFM), maintaining stable regulation while adapting switching frequency linearly with load current below ~2 A.
Its functional modes are controlled by dedicated pins: MODE selects forced-PWM or auto PFM/PWM, VSEL enables dual-output-voltage scaling via FB2, and SS/TR provides programmable soft-start or voltage tracking. The device includes HICCUP overcurrent protection, 100% duty-cycle operation for ultra-low VIN–VOUT differentials, and precise enable with user-defined UVLO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports multi-cell Li-ion batteries and standard 12-V intermediate rails without external pre-regulation. |
| Output Current | 4 A continuous - sustains full-rated load at +125°C junction temperature with proper PCB thermal design. |
| Output Voltage Accuracy | ±1% in PWM mode - ensures tight regulation for sensitive digital loads like SoCs and FPGAs without post-regulation. |
| Quiescent Current | 18 µA typical - enables >100-hour connected-standby operation in ultra-low-power computing systems. |
| Switching Frequency | 1 MHz nominal in forced PWM - allows compact 1.5-µH inductor and low-profile ceramic output capacitors. |
| Package | VQFN-11 (3 mm × 2 mm) - surface-mount footprint optimized for space-constrained POL applications with exposed thermal pad. |
| Power Good Output | Open-drain PG with 93–98% VOUT threshold - provides reliable rail sequencing signal for multi-rail systems. |
| Active Output Discharge | Integrated 100-Ω discharge path - ensures rapid VOUT collapse during shutdown, preventing back-powering of downstream circuitry. |
Pinout & Package
VQFN-11 (RGX) package with 0.4-mm pitch, 3.0 mm × 2.0 mm body, and exposed thermal pad on bottom for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 3–17 V; requires local 10-µF ceramic capacitor to GND for EMI suppression and transient response. |
| SW (Pin 2) | Power switch node | Connects to external 1.5-µH inductor; high dv/dt node requiring minimized trace area and proximity to VIN/GND caps. |
| GND (Pin 3) | Power ground | Primary return path for high-current loops; must be tied directly to thermal pad and system ground plane. |
| FB2 (Pin 4) | Secondary feedback control | Open-drain output activated by VSEL high; enables dynamic output voltage scaling by shunting R2 in feedback divider. |
| FB (Pin 5) | Main feedback input | Senses 0.7-V reference; connects to resistor divider from VOUT to set output voltage between 0.8 V and 12 V. |
| VOS (Pin 6) | Output voltage sense | Direct connection to positive terminal of output capacitor; improves load regulation by compensating PCB IR drop. |
| PG (Pin 7) | Power good indicator | Open-drain output pulled high externally; asserts low when VOUT falls below 93% of target or during EN/UVLO/thermal shutdown. |
| EN (Pin 8) | Enable control | Logic-level input with 0.7–0.83 V rising threshold; supports RC-delayed startup and programmable undervoltage lockout. |
| SS/TR (Pin 9) | Soft-start / tracking | Capacitor-connected for controlled ramp-up; accepts external voltage for synchronized rail tracking in multi-converter systems. |
| MODE (Pin 10) | Operation mode select | Pull low for auto PFM/PWM with Automatic Efficiency Enhancement; pull high for fixed 1-MHz forced PWM. |
| VSEL (Pin 11) | Voltage scale enable | High logic activates internal switch from FB2 to GND, enabling second output voltage level via FB2-R2 parallel path. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines hysteretic speed with voltage-mode stability-enables <10-µs load transient response with minimal output capacitance. |
| Automatic Efficiency Enhancement (AEE™) | Dynamically adjusts on-time in both PWM and PFM modes to maintain >85% efficiency from 10 mA to 4 A across 3–17 V input range. |
| 100% duty-cycle mode | Extends battery runtime by sustaining regulation down to VIN = VOUT + ~150 mV, critical for end-of-discharge Li-ion operation. |
| HICCUP overcurrent protection | Shuts down after 512 consecutive current-limit events, then auto-restarts-prevents thermal runaway during sustained short circuits. |
| Adjustable soft-start | External capacitor on SS/TR sets rise time; eliminates inrush current spikes that could destabilize weak input sources like coin cells. |
| Active output discharge | Internal 100-Ω MOSFET discharges VOUT to GND within milliseconds of EN deactivation-prevents unintended wake-up or latch-up. |
Applications
| Mobile Embedded Computers | SSD Power Management |
|---|---|
|
Use Scenario: Ultra-thin laptops and 2-in-1 tablets requiring always-on connectivity with sub-20-µA standby current. IC Role / Device Role / Timing Role: Primary POL regulator for SoC core voltage (e.g., 0.85 V @ 3 A), sequenced via EN and PG signals. Use Value: 18-µA quiescent current and automatic PFM/PWM transition enable >120-hour connected standby without compromising wake latency. |
Use Scenario: M.2 NVMe SSDs drawing bursty 3–4 A loads during read/write with strict 50-mV ripple limits. IC Role / Device Role / Timing Role: Main 3.3-V or 1.8-V supply with VOS sensing and 1-MHz switching to minimize EMI near high-speed PCIe lanes. Use Value: DCS-Control™ delivers <15-mV peak-to-peak ripple under 4-A 10-A/µs load steps, avoiding data corruption in flash controllers. |
| Gaming Console SoC Rails | Battery-Powered Industrial Sensors |
|
Use Scenario: Portable gaming handhelds powered by 2S Li-ion (6–8.4 V) needing clean, efficient 1.1-V GPU core supply. IC Role / Device Role / Timing Role: High-current buck converter with MODE pin forced to PWM for deterministic timing during GPU clock scaling. Use Value: ±1% output accuracy and 100% duty-cycle operation sustain stable GPU voltage down to 6.2 V input, maximizing game session duration. |
Use Scenario: Wireless sensor nodes operating from single 3.6-V Li-SOCl₂ cells with 10-year field life requirements. IC Role / Device Role / Timing Role: Step-down regulator for MCU and RF transceiver (e.g., 3.3 V @ 150 mA), enabled only during measurement cycles. Use Value: 1-µA shutdown current and precise EN threshold allow microcontroller-controlled power gating, extending battery life beyond 8 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS621361RGXR | No active output discharge; identical pinout, specs, and DCS-Control™ operation. | Preferred where output discharge is unnecessary and lower BOM cost is prioritized. | Select TPS621361RGXR if system does not require rapid VOUT collapse during shutdown. |
| TPS62135RGXR | 2.5-MHz switching frequency; same 4-A rating, input range, and VQFN-11 package. | Better suited for space-constrained designs needing smaller inductors (<1 µH) and tighter EMI filtering bandwidth. | Choose TPS62135RGXR when board area is limited and higher-frequency operation aligns with system noise budget. |
Compared with TPS62136RGXR, TPS621361RGXR removes active discharge but retains all regulation features, while TPS62135RGXR trades lower EMI headroom for reduced passive size-both require no PCB layout changes but differ in system-level trade-offs for discharge behavior and frequency-dependent filtering.
Availability
TPS62136RGXR is available at Aetrix Electronics and suitable for mobile embedded computers, SSD power management, gaming console SoC rails, and battery-powered industrial sensors requiring stable component supply across long production lifecycles.
Supply support for TPS62136RGXR 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 and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The TPS62136RGXR belongs to TI's DCS-Control™ synchronous buck converter family, engineered specifically for high-efficiency, low-noise point-of-load regulation in portable and space-constrained electronics.
FAQ
What is the maximum continuous output current of the TPS62136RGXR?
The TPS62136RGXR delivers 4 A continuous output current under recommended operating conditions (TJ ≤ +125°C, proper PCB thermal design). This rating assumes use of the specified 1.5-µH inductor and ≥12-µF effective output capacitance. Derating applies above +85°C ambient due to thermal limitations of the 3-mm × 2-mm VQFN package.
Does the TPS62136RGXR support output voltage tracking during power-up?
Yes, the TPS62136RGXR supports voltage tracking via its SS/TR pin. When an external reference voltage is applied to SS/TR, the output voltage follows that signal in forced PWM mode-enabling coordinated startup with other rails. In PFM mode, tracking is degraded due to variable frequency operation, so PWM mode is required for precise ratio-metric sequencing.
How does the MODE pin affect efficiency and noise performance of the TPS62136RGXR?
When MODE is low, the TPS62136RGXR enters auto PFM/PWM mode with Automatic Efficiency Enhancement (AEE™), varying switching frequency to maximize efficiency at light loads-but introducing variable-frequency noise. When MODE is high, it runs fixed 1-MHz forced PWM, delivering consistent EMI profiles and tighter output voltage regulation at the cost of slightly higher light-load quiescent current.
Can the TPS62136RGXR operate with input voltages below 3 V?
No, the TPS62136RGXR has a guaranteed minimum input voltage of 3 V per absolute maximum ratings and recommended operating conditions. Below this, UVLO prevents operation, and internal circuitry may become unstable. For sub-3-V inputs, consider TI's TPS6286x or TPS629xx families designed for 1.8-V to 5.5-V operation.
What is the purpose of the VOS pin on the TPS62136RGXR?
The VOS (Voltage Output Sense) pin on the TPS62136RGXR provides remote output voltage sensing by connecting directly to the positive terminal of the output capacitor. This compensates for IR drop across PCB traces between the IC and load, improving load regulation accuracy to ±0.05%/A-critical for high-current, low-voltage SoC supplies where even 10 mV error affects performance.
TPS62136RGXR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 11-VFQFN
- 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):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 12V
- Current - Output:
- 4A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 11-VQFN-HR (2x3)
TPS62136RGXR FAQ
1.How can I place an order for TPS62136RGXR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62136RGXR 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 TPS62136RGXR reliable?
The price and inventory of TPS62136RGXR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62136RGXR is usually 5 days.
3.What payment methods are accepted for TPS62136RGXR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62136RGXR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62136RGXR?
TPS62136RGXR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62136RGXR 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 TPS62136RGXR?
For technical support, including TPS62136RGXR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62136RGXR requirements.
6.How does Aetrix verify that TPS62136RGXR is sourced from the original manufacturer or authorized distributors?
All TPS62136RGXR 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 TPS62136RGXR meets industry standards.
7.What is the process for return or replacement of TPS62136RGXR?
All TPS62136RGXR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62136RGXR, 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 TPS62136RGXR part is unused and in its original packaging.
Return procedure for TPS62136RGXR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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