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Texas Instruments TPS61372YKBR
- Part No.:
- TPS61372YKBR
- Manufacturer:
- Texas Instruments
- Package:
- 16-XFBGA, DSBGA
- Datasheet:
-
TPS61372YKBR.pdf
- Description:
- IC REG BOOST ADJ 16DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,706
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Product details
Overview
TPS61372YKBR from Texas Instruments is a fully integrated synchronous boost converter with built-in load disconnect, supporting 2.5 V to 5.5 V input and up to 16 V output at 3.8-A peak switch current limit. It features 1.5-MHz fixed-frequency PWM operation, 74-μA quiescent current from VIN, and 1.57-mm × 1.52-mm WCSP package-designed for compact, high-efficiency power conversion in space-constrained battery-powered systems such as optical sensor drivers and RF PA bias supplies.
For engineers reviewing the TPS61372YKBR datasheet, TPS61372YKBR pinout, TPS61372YKBR application, or TPS61372YKBR equivalent, key selection considerations include its adaptive off-time peak-current-mode control, auto PFM/forced PWM mode selectability via MODE pin, hiccup short-circuit protection, external loop compensation capability, and integrated load disconnect during shutdown-critical for reliable backup power and motor driver supply rails.
Technical Context
The TPS61372YKBR implements peak-current-mode control with adaptive off-time regulation, enabling quasi-constant 1.5-MHz switching across moderate-to-heavy loads while dynamically reducing frequency in auto PFM mode at light loads. Its dual-FET architecture includes a 33-mΩ low-side switch and 104-mΩ high-side + disconnect FET, with soft-start (0.9 ms) and hiccup-mode short protection (1.9-ms on / 74-ms off).
Operation is configurable via the MODE pin: logic-low enables auto PFM for high light-load efficiency; logic-high forces constant 1.5-MHz PWM for noise-sensitive applications. Protection features include output overvoltage lockout (17.3 V typ), thermal shutdown (140°C), and input UVLO (2.32 V rising), all implemented without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion or 5-V bus input without pre-regulation |
| Output Voltage Range | Up to 16 V - adjustable via external resistor divider on FB pin (0.594-V reference) |
| Switch Peak Current Limit | 3.8 A - sets maximum inductor peak current and defines short-circuit robustness |
| Quiescent Current (VIN) | 74 μA - minimizes battery drain in always-on or standby modes |
| Switching Frequency | 1.5 MHz - enables use of small 2.2-μH inductors and 10-μF ceramic output capacitors |
| Load Disconnect | Enabled during shutdown - isolates VOUT from VIN to prevent backfeed and leakage |
| Package | 16-pin DSBGA (YKB), 1.57 mm × 1.52 mm × 0.5 mm - ultra-compact footprint for portable designs |
Pinout & Package
TPS61372YKBR uses a 16-pin DSBGA (YKB) package with 0.4-mm ball pitch, measuring 1.57 mm × 1.52 mm × 0.5 mm. The package supports solder paste stencil printing and standard reflow profiles per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies IC core and gate drivers; connects to input capacitor (CIN) near package |
| SW | Switch node | Drain of low-side FET and source of high-side FET; connects directly to inductor and BST capacitor |
| VOUT | Boost output | High-voltage power rail; three dedicated pins (D1–D3) reduce IR drop and improve current sharing |
| FB | Feedback input | Senses output voltage via resistor divider; 0.594-V internal reference enables precise VOUT setting |
| COMP | Error amplifier output | Connects external RC compensation network to GND for loop stability optimization |
| EN | Enable control | Active-high logic input; <0.4 V disables device and activates load disconnect |
| MODE | Operation mode select | Low = auto PFM (efficiency-optimized); high = forced PWM (noise-immune, constant frequency) |
| BST | Bootstrap supply | Requires 20–200 nF ceramic capacitor to SW for high-side FET gate drive |
| GND | Ground reference | Three dedicated pins (B1–B3) provide low-impedance return path for power and signal currents |
Key Features
| Feature | Design Value |
|---|---|
| Integrated load disconnect | Physically isolates VOUT from VIN during shutdown-eliminates reverse current and preserves battery charge |
| Hiccup-mode short protection | Shuts down for 74 ms after 1.9-ms overcurrent event-limits average power dissipation during sustained shorts |
| External loop compensation | COMP pin allows tuning of phase margin and transient response for diverse output capacitor types (e.g., MLCC vs. polymer) |
| Auto PFM / forced PWM selectability | Single MODE pin configures either high-efficiency light-load operation or EMI-controlled constant-frequency behavior |
| Output overvoltage protection | Locks out switching at 17.3 V (typ) with 500-mV hysteresis-protects downstream 16-V-rated components |
Applications
| RF PA Driver Power Supply | NAND Flash High-Voltage Programming |
|---|---|
|
Use Scenario: Supplies 12–15 V bias to RF power amplifiers in cellular IoT modules operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Boost converter providing regulated high-voltage rail with fast transient response and low-noise PWM operation. Use Value: Enables consistent PA output power across battery discharge (2.8–4.2 V), with hiccup protection preventing thermal runaway during antenna mismatch events. |
Use Scenario: Generates 12–15 V programming voltage for NAND flash memory in portable SSDs and embedded storage controllers. IC Role / Device Role / Timing Role: Precision boost regulator delivering stable high-voltage pulses during write/erase cycles. Use Value: Load disconnect prevents VOUT leakage into NAND I/O lines during standby, preserving data integrity and reducing system-level standby current. |
| Optical Sensor Bias Supply | Backup Power for Real-Time Clocks |
|
Use Scenario: Powers avalanche photodiode (APD) bias circuits in portable medical sensors and LiDAR receivers requiring low-noise, stable 12–16 V. IC Role / Device Role / Timing Role: Low-quiescent-current boost converter with soft-start and output OVP for sensitive analog front-ends. Use Value: 74-μA IQ from VIN extends battery life in always-on sensing; 0.9-ms soft-start avoids APD current surges that degrade signal-to-noise ratio. |
Use Scenario: Maintains RTC and SRAM backup voltage during main power failure in industrial HMIs and smart meters using coin-cell or supercapacitor sources. IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter with shutdown isolation for energy harvesting and backup power management. Use Value: 1-μA shutdown current and load disconnect ensure >10-year coin-cell lifetime; 16-V output supports wide-range backup capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61291DRVR | Lower 2.7-V min input, 5.5-A switch limit, no load disconnect, 2.1-MHz fSW | Lacks integrated load disconnect and hiccup protection; requires external MOSFET for isolation | Choose when higher peak current and faster switching are prioritized over shutdown isolation |
| MAX20499AATG+T | 2.5–5.5-V input, 16-V output, 4-A limit, integrated load switch, but 500-kHz max fSW | Slower switching limits inductor/capacitor size reduction; different compensation architecture | Prefer when thermal budget favors lower switching losses over board area minimization |
Compared with TPS61372YKBR, TPS61291DRVR offers higher current headroom but omits critical load disconnect functionality, while MAX20499AATG+T provides comparable integration at lower frequency-making TPS61372YKBR optimal for space-constrained, battery-sensitive designs requiring both high efficiency and fault-isolated shutdown.
Availability
TPS61372YKBR is available at Aetrix Electronics and suitable for RF PA driver power supplies, NAND flash programming rails, and optical sensor bias circuits requiring stable component supply, long-term manufacturability, and guaranteed TI production continuity.
Supply support for TPS61372YKBR 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 TPS61372YKBR belongs to TI's high-density synchronous boost converter product line, engineered specifically for ultra-compact, battery-powered applications demanding high output voltage, low quiescent current, and robust fault protection-including load disconnect and hiccup-mode short recovery.
FAQ
What is the minimum input voltage required for TPS61372YKBR to start switching?
The TPS61372YKBR has an input undervoltage lockout (UVLO) threshold of 2.32 V (rising). It begins switching only when VIN exceeds this value. Below 2.1 V (falling threshold), the device shuts down and activates load disconnect. This ensures reliable startup from partially discharged single-cell Li-ion batteries while preventing brownout operation that could destabilize feedback control.
How does the MODE pin affect efficiency and EMI performance in TPS61372YKBR?
When the MODE pin is pulled low (or left floating), TPS61372YKBR operates in auto PFM mode-reducing switching frequency at light loads to achieve >85% efficiency at 100-μA output current. When pulled high, it enters forced PWM mode, maintaining 1.5-MHz operation across all loads, which delivers predictable EMI spectra and improved noise immunity in RF-sensitive layouts-but reduces light-load efficiency by ~5–8%.
Can TPS61372YKBR safely drive a 12-V, 400-mA load from a 3.3-V input?
Yes. With VIN = 3.3 V and VOUT = 12 V, the TPS61372YKBR delivers up to 400 mA continuously under typical conditions (TJ < 125°C), supported by its 3.8-A peak switch current limit and 104-mΩ high-side FET. Efficiency exceeds 88% at this point (per Figure 6-1), and thermal metrics (RθJA = 87.1°C/W) confirm safe operation with minimal PCB copper area.
What external components are mandatory for basic TPS61372YKBR operation?
Four components are mandatory: input capacitor (≥10 μF ceramic at VIN), output capacitor (≥10 μF ceramic at VOUT), inductor (2.2 μH, ≥4.5-A saturation current), and BST capacitor (≥20 nF ceramic between BST and SW). Additionally, a resistor divider (e.g., 100 kΩ + 1.909 MΩ) on FB sets output voltage, and EN must be pulled high via ≥100-kΩ resistor for enable.
Does TPS61372YKBR provide output overvoltage protection, and what is its trip threshold?
Yes. TPS61372YKBR includes internal output overvoltage protection (OVP) that disables switching immediately if VOUT exceeds 17.3 V (typical), with 500-mV hysteresis. Recovery occurs automatically when VOUT falls below 16.8 V. This protects downstream 16-V-rated components such as NAND flash I/O buffers and optical sensor bias networks from catastrophic overvoltage stress.
TPS61372YKBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- 16V
- Current - Output:
- -
- Frequency - Switching:
- 1.2MHz ~ 1.7MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DSBGA
TPS61372YKBR FAQ
1.How can I place an order for TPS61372YKBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61372YKBR 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 TPS61372YKBR reliable?
The price and inventory of TPS61372YKBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61372YKBR is usually 5 days.
3.What payment methods are accepted for TPS61372YKBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61372YKBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61372YKBR?
TPS61372YKBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61372YKBR 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 TPS61372YKBR?
For technical support, including TPS61372YKBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61372YKBR requirements.
6.How does Aetrix verify that TPS61372YKBR is sourced from the original manufacturer or authorized distributors?
All TPS61372YKBR 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 TPS61372YKBR meets industry standards.
7.What is the process for return or replacement of TPS61372YKBR?
All TPS61372YKBR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61372YKBR, 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 TPS61372YKBR part is unused and in its original packaging.
Return procedure for TPS61372YKBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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