My Inquiry
My Account
Texas Instruments TPS513885VABR
- Part No.:
- TPS513885VABR
- Manufacturer:
- Texas Instruments
- Package:
- 13-PowerVFQFN
- Datasheet:
-
TPS513885VABR.pdf
- Description:
- IC REG BUCK 5.15V 12A 13VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,691
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS513885VABR from Texas Instruments is a monolithic 12A synchronous buck converter with integrated 9.2mΩ high-side and 4.5mΩ low-side MOSFETs, fixed 5.15V output, D-CAP3™ control architecture, and operation across 5.5V–24V input for notebook CPU core power delivery.
For engineers reviewing the TPS513885VABR datasheet, TPS513885VABR pinout, TPS513885VABR application, or TPS513885VABR equivalent, key selection considerations include Eco-mode vs. Out-of-Audio™ light-load behavior, 560kHz/920kHz selectable switching frequency, ±1.0% output voltage accuracy at 25°C, integrated power-good indicator, and HotRod™ VQFN-HR (VAB) 13-pin 3.0mm × 4.0mm package thermal performance.
Technical Context
The TPS513885VABR employs D-CAP3™ adaptive on-time control with internal ripple injection, enabling stable regulation with POSCAP or all-MLCC output capacitors and eliminating external compensation components. Its control loop supports seamless CCM-to-DCM transition and large-duty-cycle operation up to 98% for improved low-input-voltage transient response.
Functional modes are dynamically selected via EN and MODE pins: EN voltage sets Eco-mode (>2.2V) for peak light-load efficiency or Out-of-Audio™ mode (1.0–1.6V) to maintain >25kHz switching; MODE pin selects 560kHz (high-level) or 920kHz (low-level) fixed-frequency operation before soft-start.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5V to 24V - supports wide-input industrial and portable systems without pre-regulation. |
| Output Voltage | Fixed 5.15V ±1.0% at 25°C - eliminates external feedback resistor network; tight tolerance enables direct powering of 5V logic rails. |
| Continuous Output Current | 12A - delivered via integrated FETs with RDS(on) = 9.2mΩ (HS) / 4.5mΩ (LS), minimizing conduction loss and thermal footprint. |
| Quiescent Current | 90μA - enables ultra-low standby power in battery-backed systems; drops to 3μA in shutdown. |
| Switching Frequency | Selectable 560kHz or 920kHz - balances EMI, inductor size, and efficiency; configurable via MODE pin voltage level. |
| Soft-Start Time | Fixed 0.9ms - ensures controlled output ramp-up without external timing components, reducing design complexity. |
| Operating Junction Temp | –20°C to 125°C - qualified for extended industrial and mobile computing environments; RθJA = 53.8°C/W (standard board). |
Pinout & Package
TPS513885VABR uses a 13-pin HotRod™ VQFN-HR (VAB) package, 3.0mm × 4.0mm, with exposed thermal pad for enhanced heat dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Supplies control circuitry; requires local decoupling to PGND for noise immunity and stability. |
| SW (Pins 2,12) | Switching node | Connects to inductor and bootstrap capacitor; swings from ~–0.7V to VIN; critical for layout low-inductance routing. |
| PGND (Pins 3,11) | Power ground | High-current return path for internal FETs and controller; must be tied directly to thermal pad and input/output caps. |
| PG (Pin 4) | Power-good indicator | Open-drain output asserting high when VOUT is within 90–115% of 5.15V; de-glitched with 160μs rise/30μs fall delay. |
| MODE (Pin 5) | Frequency select | Digital input: >1V → 560kHz; <0.4V → 920kHz; sets switching frequency before soft-start initiation. |
| EN (Pin 6) | Enable & light-load mode | Active-high enable; voltage level selects Eco-mode (>2.2V) or Out-of-Audio™ (1.0–1.6V); supports dynamic toggling during operation. |
| FB (Pin 7) | Feedback input | Monitors output via resistive divider (not required for fixed-VOUT variant); supports feedforward compensation for load transients. |
| VOUT (Pin 8) | Output bypass | Provides bypass path for internal 5V LDO; connects to output rail; enables VCC switchover when VOUT > 4.8V. |
| NC (Pin 9) | No connect | Unbonded; must remain floating; no PCB trace or copper pour connection permitted. |
| VCC (Pin 10) | Internal LDO output | 5V ±0.3V regulated supply for analog/digital circuits; requires 2.2μF ceramic decoupling to PGND. |
| VBST (Pin 13) | Bootstrap supply | Charges high-side gate driver; requires 0.1μF ceramic capacitor between VBST and SW for proper HS FET turn-on. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP3™ control mode | Enables fast transient response with zero external compensation components and stable operation with ultra-low-ESR MLCC or POSCAP output capacitors. |
| Selectable Eco-mode / Out-of-Audio™ | EN pin voltage dynamically selects between maximum light-load efficiency (Eco) or audible-noise-free operation (>25kHz min. frequency, OOA). |
| Integrated power-good and discharge | Open-drain PG pin provides system sequencing feedback; 50Ω internal discharge switch rapidly clears VOUT during fault or disable events. |
| Latched OVP/UVP and non-latched UVLO/OTP | OVP (120%) and UVP (60%) latch until EN toggle or VIN cycle; UVLO (4.45V wake-up) and OTP (160°C) auto-recover after fault removal. |
| Large duty-cycle support | TON extension enables up to 98% duty cycle, improving load transient performance under low-VIN conditions (e.g., 5.5V input to 5.15V output). |
Applications
| Ultrabook Core Power | Notebook System Rail |
|---|---|
|
Use Scenario: Primary 5V rail for CPU I/O, chipset, and memory interface in thin-and-light notebooks with strict thermal and efficiency requirements. IC Role / Device Role / Timing Role: Synchronous buck regulator delivering regulated 5.15V at up to 12A with D-CAP3™ fast transient response to handle CPU burst loads. Use Value: Integrated FETs and fixed output eliminate external components; Eco-mode extends battery runtime during idle/sleep states. |
Use Scenario: Main 5V system power rail in clamshell notebooks requiring robust protection and seamless mode transitions during dynamic workload changes. IC Role / Device Role / Timing Role: Monolithic step-down converter with latched OVP/UVP and non-latched UVLO/OTP for reliable operation across input brownouts and thermal stress. Use Value: 90μA quiescent current and ULQ™ battery life extension reduce standby power; PG signal enables safe system boot sequencing. |
| Industrial PC Power | Drone Flight Controller Supply |
|
Use Scenario: 5V rail for fanless industrial PCs operating in –20°C to 70°C ambient with minimal airflow and long service life expectations. IC Role / Device Role / Timing Role: High-efficiency buck converter with –20°C to 125°C junction rating and RθJB = 11.5°C/W for direct board-level thermal management. Use Value: HotRod™ VQFN-HR package minimizes thermal resistance; large duty-cycle operation maintains regulation during 5.5V input dips. |
Use Scenario: Power stage for flight controller and sensor hub in non-military drones where weight, EMI, and acoustic noise must be minimized. IC Role / Device Role / Timing Role: Synchronous buck with Out-of-Audio™ mode prevents inductor/capacitor buzz during low-throttle hover and maneuvering. Use Value: Selectable 920kHz switching reduces EMI filter size; integrated discharge function ensures rapid rail collapse during emergency shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS513871VABR | Same 13-pin VAB package and D-CAP3™ control, but fixed 3.3V output and 10A rating; lacks OOA mode and ULQ™ feature. | Targeted for lower-voltage SoC rails rather than 5V system rails; not suitable for applications requiring 5.15V or audible-noise suppression. | Select TPS513871VABR only if 3.3V output and 10A current meet system requirements and OOA/Eco-mode flexibility is unnecessary. |
| TPS54383VABR | 12A rating and 5.5V–24V input, but uses current-mode control, requires external compensation, and offers adjustable output (0.6V–5.5V) instead of fixed 5.15V. | Better for designs needing programmable output or tighter cross-regulation in multi-rail systems; higher BOM count due to compensation network. | Choose TPS54383VABR when output voltage adjustability or current-mode loop tuning is required; avoid if simplicity and fixed 5.15V are priorities. |
Compared with TPS513871VABR and TPS54383VABR, the TPS513885VABR uniquely combines fixed 5.15V output, integrated D-CAP3™ control, Out-of-Audio™ capability, and ULQ™ battery life extension-making it optimal for space- and efficiency-critical 5V system rail applications where component count and acoustic noise must be minimized.
Availability
TPS513885VABR is available at Aetrix Electronics and suitable for notebook computers, ultrabooks, and industrial PCs requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS513885VABR 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 and automotive-grade reliability.
The TPS513885VABR belongs to TI's high-current monolithic buck converter product line, engineered specifically for compact, high-efficiency 5V system rail generation in portable and industrial computing platforms.
FAQ
What is the output voltage setting of the TPS513885VABR?
The TPS513885VABR features a factory-trimmed fixed output voltage of 5.15V with ±1.0% accuracy at 25°C and ±0.08V variation over –20°C to 125°C junction temperature. No external feedback resistors are required, simplifying layout and reducing BOM count while ensuring precise regulation for 5V logic and interface rails.
Does the TPS513885VABR support both Eco-mode and Out-of-Audio™ operation?
Yes, the TPS513885VABR supports both Eco-mode and Out-of-Audio™ operation via the EN pin voltage: pulling EN above 2.2V enables Eco-mode for maximum light-load efficiency, while setting EN between 1.0V and 1.6V activates Out-of-Audio™ mode to maintain switching frequency above 25kHz and eliminate audible noise from magnetics and capacitors.
What package type and thermal characteristics does the TPS513885VABR use?
The TPS513885VABR uses the 13-pin HotRod™ VQFN-HR (VAB) package, 3.0mm × 4.0mm with exposed thermal pad. Its thermal metrics include RθJA = 53.8°C/W (standard board) and RθJB = 11.5°C/W, enabling efficient heat transfer to the PCB and supporting continuous 12A operation within its –20°C to 125°C junction temperature range.
How does the TPS513885VABR implement overcurrent protection?
The TPS513885VABR implements dual overcurrent protection: valley current limiting on the low-side FET (12.5–16A typical) and peak current limiting on the high-side FET (22A typical), both with cycle-by-cycle response. It also includes negative overcurrent protection (–5.5A) to prevent inductor current runaway during Out-of-Audio™ operation.
Can the TPS513885VABR operate with a 5.5V input and deliver full 12A at 5.15V output?
Yes, the TPS513885VABR supports large duty-cycle operation up to 98%, enabling stable 5.15V output delivery at full 12A even with a 5.5V input. Its internal TON extension function dynamically adjusts on-time to maintain regulation and improve load transient response under low-VIN conditions.
TPS513885VABR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 13-PowerVFQFN
- 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):
- 5.5V
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 5.15V
- Voltage - Output (Max):
- -
- Current - Output:
- 12A
- Frequency - Switching:
- 560kHz, 920kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 13-VQFN-HR (4x3)
TPS513885VABR FAQ
1.How can I place an order for TPS513885VABR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS513885VABR 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 TPS513885VABR reliable?
The price and inventory of TPS513885VABR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS513885VABR is usually 5 days.
3.What payment methods are accepted for TPS513885VABR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS513885VABR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS513885VABR?
TPS513885VABR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS513885VABR 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 TPS513885VABR?
For technical support, including TPS513885VABR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS513885VABR requirements.
6.How does Aetrix verify that TPS513885VABR is sourced from the original manufacturer or authorized distributors?
All TPS513885VABR 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 TPS513885VABR meets industry standards.
7.What is the process for return or replacement of TPS513885VABR?
All TPS513885VABR units undergo pre-shipment inspection (PSI). If there is an issue with TPS513885VABR, 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 TPS513885VABR part is unused and in its original packaging.
Return procedure for TPS513885VABR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS513885VABR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
