My Inquiry
My Account
Texas Instruments TPS61372YKBT
- Part No.:
- TPS61372YKBT
- Manufacturer:
- Texas Instruments
- Package:
- 16-XFBGA, DSBGA
- Datasheet:
-
TPS61372YKBT.pdf
- Description:
- IC REG BOOST ADJ 3.8A 16DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:6,312
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS61372YKBT from Texas Instruments is a fully integrated synchronous boost converter with integrated load disconnect, designed for single-cell Li-ion (2.5 V–5.5 V input) to 16-V output conversion in space-constrained applications. It delivers 3.8-A peak switch current, operates at 1.5-MHz fixed frequency (or auto PFM), features 33-mΩ low-side and 104-mΩ high-side FETs, and supports hiccup-mode short-circuit protection - enabling use in RF PA driver and optical sensor power rails.
For engineers reviewing the TPS61372YKBT datasheet, TPS61372YKBT pinout, TPS61372YKBT application, or TPS61372YKBT equivalent, key selection criteria include its 1.57-mm × 1.52-mm WCSP package, load-disconnect capability during shutdown, external loop compensation via COMP pin, output overvoltage protection (17.3 V typ), and MODE-pin-selectable auto PFM/forced PWM operation.
Technical Context
The TPS61372YKBT implements peak-current-mode control with adaptive off-time regulation, enabling quasi-constant 1.5-MHz PWM under moderate-to-heavy loads and dynamic frequency reduction in auto PFM mode for light-load efficiency. Its internal architecture integrates both high-side and low-side synchronous FETs, a transconductance error amplifier (175 µS), and dedicated BST capacitor drive for high-side gate biasing.
Functional safety features include undervoltage lockout (2.32-V rising threshold), thermal shutdown (140°C trip), output overvoltage protection (17.3-V threshold with 500-mV hysteresis), and hiccup-mode short-circuit recovery (1.9-ms on / 74-ms off cycle). The device supports external compensation and programmable soft-start (0.9-ms typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports direct connection to single-cell Li-ion or 5-V bus without pre-regulation. |
| Output Voltage Range | Up to 16 V - adjustable via external resistor divider on FB pin; reference voltage 0.594 V (typ). |
| Switch Peak Current Limit | 3.8 A - sets maximum inductor peak current; enables robust 0.4-A @ 12-V output with margin. |
| Quiescent Current (VIN) | 74 µA - minimizes battery drain in always-on systems; measured with no switching activity. |
| Switching Frequency | 1.5 MHz (typ) - enables use of small 2.2-µH inductors and 10-µF ceramic output capacitors. |
| Load Disconnect | Enabled during shutdown - isolates VOUT from VIN via internal high-side FET, preventing backfeed. |
| Thermal Shutdown | 140°C (typ) - protects against sustained overload; recovers at ~120°C with 20°C hysteresis. |
Pinout & Package
TPS61372YKBT uses a 16-pin DSBGA (WCSP) package measuring 1.57 mm × 1.52 mm × 0.5 mm, optimized for ultra-compact PCB layouts in portable and wearables designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB | Feedback input | Connects to resistor divider to set output voltage; 0.594-V internal reference enables precise regulation. |
| COMP | Error amplifier output | External RC network between COMP and GND sets loop stability and transient response. |
| MODE | Operation mode select | Pull low/floating = auto PFM (high light-load efficiency); pull high = forced PWM (fixed 1.5-MHz frequency). |
| EN | Enable logic input | Logic-high (>1.2 V) enables converter; logic-low (<0.4 V) initiates shutdown with load disconnect. |
| VIN | Power supply input | Accepts 2.5–5.5 V; powers internal circuitry and low-side FET driver. |
| VOUT | Boost output | Delivers regulated output up to 16 V; three pins (D1/D2/D3) provide low-impedance power path. |
| SW | Switching node | Connects to inductor; shared drain (low-side) and source (high-side) node; requires low-ESR ceramic capacitor to BST. |
| BST | Bootstrap supply | Drives high-side FET gate; requires 20–200-nF ceramic capacitor between BST and SW. |
| GND | Ground reference | Three dedicated pins (B1/B2/B3) minimize ground impedance and improve EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated load disconnect | Internal high-side FET blocks VOUT–VIN path during shutdown, eliminating need for external reverse-blocking diode or MOSFET. |
| Hiccup-mode short protection | Shuts down for 74 ms after 1.9-ms overcurrent event, limiting average power dissipation and preventing thermal runaway. |
| External loop compensation | COMP pin allows full control over bandwidth, phase margin, and transient response using standard Type-II or Type-III networks. |
| Auto PFM / forced PWM selection | MODE pin configures operating mode: auto PFM improves light-load efficiency; forced PWM ensures constant frequency for noise-sensitive systems. |
| Output overvoltage protection | Halts switching if VOUT exceeds 17.3 V (typ), with 500-mV hysteresis to prevent chatter during recovery. |
Applications
| RF PA Driver Power | NAND Flash Programming |
|---|---|
Use Scenario: Supplies 12–15 V to RF power amplifiers in cellular IoT modules where input is a single Li-ion cell. IC Role / Device Role / Timing Role: Boost converter with load disconnect ensures clean power-up sequencing and prevents VOUT backfeed into battery during sleep. Use Value: 3.8-A current limit supports burst-mode PA operation; 1.5-MHz switching enables compact 2.2-µH inductor and low-profile layout. | Use Scenario: Generates 12–15 V programming voltage for NAND flash memory in embedded storage controllers. IC Role / Device Role / Timing Role: Precision-regulated boost source with hiccup protection prevents damage during flash write/erase cycles. Use Value: 0.594-V FB reference and external divider enable ±1% output accuracy; load disconnect avoids leakage paths during standby. |
| Optical Sensor Bias | Motor Driver Auxiliary Supply |
Use Scenario: Powers avalanche photodiodes (APDs) or laser diodes requiring stable 12–16 V bias in portable medical sensors. IC Role / Device Role / Timing Role: Low-noise, high-PSRR boost regulator with soft-start (0.9 ms) prevents sensor saturation during power-on. Use Value: Auto PFM mode achieves >85% efficiency at 100-µA loads; 74-µA quiescent current extends battery life in intermittent-sensing devices. | Use Scenario: Provides isolated 12-V gate drive or logic supply for half-bridge motor drivers in battery-powered tools. IC Role / Device Role / Timing Role: Compact, thermally robust boost stage delivering fault-tolerant auxiliary power with thermal shutdown (140°C). Use Value: 104-mΩ high-side FET and 33-mΩ low-side FET minimize conduction loss; WCSP package enables direct thermal coupling to PCB copper. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | Higher 10-A peak current, 2.5-V to 12-V input, no integrated load disconnect, larger 3-mm × 3-mm QFN package. | Suitable for higher-power applications (e.g., 5-V to 20-V boost), but requires external load-switch circuitry for disconnect functionality. | Select TPS61088RHLR only when >3.8-A peak current or >16-V output is required; not drop-in due to missing load disconnect and different pinout. |
| MAX20499AATG+T | 2.5-V to 5.5-V input, 16-V output, 3.5-A peak current, integrated load disconnect, 1.8-MHz switching, 1.6-mm × 1.6-mm WLP package. | Offers tighter output voltage tolerance (±0.7%) and lower quiescent current (25 µA from VIN), but lacks hiccup short protection and external compensation. | Prefer MAX20499AATG+T for ultra-low-IQ battery applications where hiccup protection is not critical and loop tuning flexibility is not required. |
Compared with TPS61372YKBT, TPS61088RHLR provides higher current headroom but adds system complexity for load disconnect, while MAX20499AATG+T reduces IQ and improves accuracy at the cost of design flexibility and fault resilience.
Availability
TPS61372YKBT is available at Aetrix Electronics and suitable for RF PA driver, NAND flash programming, optical sensor bias, and motor driver auxiliary supply applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS61372YKBT 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 company specializing in analog, embedded processing, and power management ICs, with leadership in high-efficiency DC/DC conversion and precision power solutions.
The TPS61372YKBT belongs to TI's high-density synchronous boost converter product line, engineered specifically for battery-powered portable electronics needing ultra-small footprint, load isolation, and robust fault protection.
FAQ
What is the minimum input voltage required for TPS61372YKBT to start switching?
The TPS61372YKBT begins operation when the input voltage rises above its undervoltage lockout (UVLO) threshold of 2.32 V (typical, rising). Below this level, the device remains disabled regardless of EN pin state. This ensures reliable startup from partially discharged single-cell Li-ion batteries while preventing erratic behavior near end-of-life voltage.
How does the load disconnect feature work in TPS61372YKBT during shutdown?
In TPS61372YKBT, load disconnect is implemented via an integrated high-side FET that opens the path between VIN and VOUT when the EN pin is pulled low. This physically isolates the output capacitor and load from the input source, eliminating reverse current flow and preventing battery drain or unintended powering of downstream circuits during system sleep or fault conditions.
Can TPS61372YKBT operate without external compensation components?
No - the TPS61372YKBT requires external compensation components connected between the COMP pin and GND to ensure stable regulation. The device uses a transconductance error amplifier (175 µS) and relies on user-designed Type-II or Type-III networks to set gain crossover, phase margin, and transient response. Omitting these components results in oscillation or poor load regulation.
What is the purpose of the BST pin on TPS61372YKBT, and what capacitor value is recommended?
On TPS61372YKBT, the BST pin supplies gate drive voltage to the internal high-side FET. A ceramic capacitor (20 nF to 200 nF) must be placed between BST and SW to form a bootstrap charge pump. TI recommends 100 nF for optimal performance - this value ensures sufficient charge transfer during each switching cycle while minimizing voltage ripple on the high-side gate.
Does TPS61372YKBT support automatic mode switching between PFM and PWM based on load?
No - TPS61372YKBT does not auto-switch modes. The MODE pin selects one of two fixed operational states: logic-low (or floating) configures auto PFM mode for light-load efficiency, while logic-high forces continuous PWM operation across all load conditions. There is no dynamic transition; the selected mode remains active until the MODE pin voltage changes.
TPS61372YKBT 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:
- 3.8A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DSBGA
TPS61372YKBT FAQ
1.How can I place an order for TPS61372YKBT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61372YKBT 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 TPS61372YKBT reliable?
The price and inventory of TPS61372YKBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61372YKBT is usually 5 days.
3.What payment methods are accepted for TPS61372YKBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61372YKBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61372YKBT?
TPS61372YKBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61372YKBT 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 TPS61372YKBT?
For technical support, including TPS61372YKBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61372YKBT requirements.
6.How does Aetrix verify that TPS61372YKBT is sourced from the original manufacturer or authorized distributors?
All TPS61372YKBT 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 TPS61372YKBT meets industry standards.
7.What is the process for return or replacement of TPS61372YKBT?
All TPS61372YKBT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61372YKBT, 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 TPS61372YKBT part is unused and in its original packaging.
Return procedure for TPS61372YKBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS61372YKBT 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…
