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Texas Instruments TPS63901YCJR
- Part No.:
- TPS63901YCJR
- Manufacturer:
- Texas Instruments
- Package:
- 12-XFBGA, DSBGA
- Datasheet:
-
TPS63901YCJR.pdf
- Description:
- IC REG BUCK BOOST PROG 12DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,960
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Product details
Overview
TPS63901YCJR from Texas Instruments is a synchronous buck-boost DC/DC converter optimized for ultra-low-power battery-powered systems. It operates from 1.8 V to 5.5 V input, delivers 1.8 V to 5.0 V output in 100-mV steps, supports >400 mA at 3.3 V output with ≥2.0 V input, and achieves 90% efficiency at 10 µA load while drawing only 75 nA quiescent current. It is used in wearable electronics requiring dynamic voltage scaling and precise input current limiting.
For engineers reviewing the TPS63901YCJR datasheet, TPS63901YCJR pinout, TPS63901YCJR application, or TPS63901YCJR equivalent, key selection criteria include its single-mode trapezoidal control architecture (eliminating buck/boost mode transitions), programmable 1–100 mA input current limit, dual-output-voltage DVS capability via SEL pin, and WCSP package compatibility with space-constrained IoT sensor nodes.
Technical Context
The TPS63901YCJR implements a four-switch synchronous buck-boost topology with trapezoidal inductor current control-enabling seamless regulation across VI < VO, VI = VO, and VI > VO without mode-switching artifacts. Its single operating mode ensures low output ripple and excellent transient response under varying load and input conditions.
It features a resistor-to-digital (R2D) interface using CFG1/CFG2/CFG3 pins to configure two independent output voltages (VO(1) and VO(2)) and eight input current limit settings (1 mA to 100 mA + unlimited). The SEL pin toggles between VO(1) and VO(2) with 125 µs step duration during dynamic voltage scaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-MnO₂, Li-SOCl₂, and 3S alkaline primary batteries without external regulators. |
| Output Voltage Range | 1.8 V to 5.0 V in 100-mV steps - user-programmable via external resistors on CFG pins; two presets selectable by SEL pin. |
| Quiescent Current | 75 nA typical - enables multi-year operation in always-on sensor nodes powered by coin cells. |
| Max Output Current | >400 mA at VI ≥ 2.0 V, VO = 3.3 V - sufficient for sub-GHz, BLE, LoRa, and NB-IoT RF transceivers during transmit bursts. |
| Input Current Limit | Programmable: 1 mA, 2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, 100 mA, or unlimited - protects weak batteries and enables predictable power budgeting. |
| Package | 12-ball WCSP, 1.5 mm × 1.15 mm, 0.35 mm pitch - ultra-compact footprint for wearables and medical patches. |
| Shutdown Current | 60 nA - minimizes leakage during deep sleep, critical for energy-harvesting and intermittent-sensing applications. |
Pinout & Package
TPS63901YCJR uses a 12-ball wafer chip-scale package (WCSP) measuring 1.50 mm × 1.15 mm with 0.35 mm ball pitch. The package is lead-free, RoHS-compliant, and designed for high-density PCB layouts in space-constrained portable devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX1 | Switching node (buck stage) | Connects to inductor leg of buck path; requires low-inductance layout to minimize switching noise and EMI. |
| LX2 | Switching node (boost stage) | Connects to inductor leg of boost path; shares same inductor as LX1 in typical 4-switch configuration. |
| VIN | Input supply rail | Accepts 1.8–5.5 V; internal UVLO (1.75 V typ.) prevents startup below usable battery voltage. |
| VOUT | Regulated output rail | Two parallel balls (C2/D2) must be shorted externally; supports up to 5 V with ±1.5% DC accuracy. |
| GND | Power ground | Dual balls (B1/C1) provide low-impedance return path; critical for thermal performance and noise immunity. |
| EN | Enable control input | Active-high logic; must not float; 1.2 V VIH ensures compatibility with 1.8 V I/O domains. |
| SEL | Output voltage select | Switches between VO(1) and VO(2) presets; 30–40 µs response enables fast DVS during system state transitions. |
| CFG1–CFG3 | Configuration inputs | Resistor-connected pins read at startup only; set VO(1), VO(2), and input current limit; internal 33 kΩ reference enables precision R2D conversion. |
Key Features
| Feature | Design Value |
|---|---|
| Single-mode trapezoidal control | Eliminates buck/boost/buck-boost mode transitions - delivers stable output voltage and low ripple across full VI/VO range. |
| Dynamic voltage scaling (DVS) | Hardware-supported VO(1)/VO(2) toggle via SEL pin with 125 µs step timing - reduces system power during standby without software overhead. |
| Programmable input current limit | Eight discrete settings (1–100 mA + unlimited) configured via CFG1/CFG2 - prevents battery sag and enables safe operation with primary chemistries. |
| Ultra-low IQ and ISD | 75 nA quiescent current and 60 nA shutdown current - extends battery life in always-on sensing applications beyond 10 years. |
| Integrated protection | Output short-circuit detection with automatic restart, thermal shutdown (150 °C threshold), and soft-start - eliminates need for external fault management circuitry. |
Applications
| Smart Watch Power Management | Medical Sensor Patch |
|---|---|
Use Scenario: Continuous heart rate and SpO₂ monitoring with periodic BLE transmission. IC Role / Device Role / Timing Role: Primary system power regulator delivering 3.3 V to MCU and 2.8 V to analog front-end during active sensing; switches to 1.8 V during BLE idle. Use Value: DVS reduces average system power by 35% vs fixed 3.3 V supply; 75-nA IQ enables >2-week runtime on CR2032. |
Use Scenario: Disposable patient patch transmitting ECG data every 5 minutes over NB-IoT. IC Role / Device Role / Timing Role: Buck-boost regulator powering 3.6 V RF transceiver and 2.5 V ADC from single Li-SOCl₂ cell (2.0–3.6 V discharge curve). Use Value: Input current limit set to 5 mA prevents cell polarization; single-mode operation ensures clean power during RF burst without voltage droop. |
| Industrial Smart Sensor Node | Electronic Smart Lock |
Use Scenario: Battery-powered temperature/humidity sensor reporting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: System power source enabling 3.3 V MCU operation and 5.0 V LoRa transceiver boost during TX; maintains 2.2 V bias for analog sensors during sleep. Use Value: Programmable VO(1)/VO(2) eliminates need for separate LDOs; WCSP footprint fits within 8 mm × 8 mm sensor module. |
Use Scenario: Door lock actuator with wake-on-RFID and Bluetooth provisioning. IC Role / Device Role / Timing Role: Regulator supplying 3.3 V to BLE SoC and 5.0 V to solenoid driver from 3S alkaline pack (3.2–4.5 V). Use Value: 100-mA input current limit prevents alkaline cell voltage collapse during solenoid activation; thermal shutdown protects against latch-up during extended motor drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63802YFFR | Higher IQ (200 nA), no DVS or programmable input current limit; 2.5-V to 5.5-V input; 1.8-V to 5.5-V output. | Lacks SEL-based voltage switching and configurable current limiting - unsuitable for adaptive power schemes requiring runtime voltage changes. | Choose when ultra-small size (1.2 mm × 0.8 mm DSBGA) is prioritized over DVS and battery protection features. |
| MAX77650EWL+T | Integrated battery charger, fuel gauge, and LDOs; 700 nA IQ; 2.5-V to 4.8-V input; fixed 3.3 V or 3.6 V output. | System PMIC rather than standalone buck-boost; no programmable output voltage or input current limiting - limited flexibility for custom voltage rails. | Choose when charging, fuel gauging, and multiple regulated outputs are required in one IC, accepting higher IQ and fixed VO. |
Compared with TPS63901YCJR, TPS63802YFFR offers smaller footprint but sacrifices DVS and input current control essential for battery longevity; MAX77650EWL+T provides system-level integration but lacks the fine-grained programmability and ultra-low IQ needed for decade-long sensor deployments.
Availability
TPS63901YCJR is available at Aetrix Electronics and suitable for smart watches, medical sensor patches, and industrial IoT nodes requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS63901YCJR 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 focused on analog and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The TPS63901 belongs to TI's ultra-low-power buck-boost converter product line, engineered specifically for battery-operated wearables, medical patches, and NB-IoT endpoints where nanoscale quiescent current and adaptive voltage scaling are mandatory.
FAQ
What is the minimum input voltage required for TPS63901YCJR to start up?
The TPS63901YCJR has a positive-going undervoltage lockout (UVLO) threshold of 1.75 V typical. Startup occurs when VIN rises above this threshold and the EN pin is asserted high. The device remains operational down to 1.8 V input, making it compatible with deeply discharged primary batteries such as Li-MnO₂ and Li-SOCl₂ cells.
How does the SEL pin function in TPS63901YCJR?
The SEL pin in TPS63901YCJR selects between two independently programmed output voltages: VO(1) when SEL is low, and VO(2) when SEL is high. Voltage transition occurs in 100-mV steps with 125 µs per step, enabling hardware-controlled dynamic voltage scaling without firmware intervention. The TPS63901YCJR ignores SEL state changes during soft-start ramp-up.
Can TPS63901YCJR be used with a single 3.7-V Li-ion battery?
Yes, TPS63901YCJR supports input voltages from 1.8 V to 5.5 V, fully covering the 3.0–4.2 V discharge range of a single Li-ion cell. Its single-mode operation ensures stable 3.3 V output even as the battery voltage drops below the target rail, eliminating mode-transition artifacts common in conventional buck-boost converters.
What is the purpose of the CFG1, CFG2, and CFG3 pins on TPS63901YCJR?
CFG1, CFG2, and CFG3 are resistor-to-digital (R2D) configuration pins read once at startup. CFG1 and CFG2 jointly set VO(2) and the input current limit; CFG3 sets VO(1). Internal 33-kΩ reference enables precise resistor-based programming. After boot, these pins are disabled to minimize leakage - changes made during operation have no effect on TPS63901YCJR behavior.
Does TPS63901YCJR support parallel operation for higher output current?
Yes, TPS63901YCJR supports stacking multiple units in parallel to increase total output current capability. Synchronization is achieved through shared inductor and output capacitor connections; no external clock or master-slave signaling is required. This feature allows scalable power delivery - for example, two TPS63901YCJR devices can deliver >800 mA at 3.3 V when VI ≥ 2.0 V.
TPS63901YCJR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 400mA
- Frequency - Switching:
- 4Hz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-DSBGA (1.46x1.11)
TPS63901YCJR FAQ
1.How can I place an order for TPS63901YCJR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63901YCJR 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 TPS63901YCJR reliable?
The price and inventory of TPS63901YCJR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63901YCJR is usually 5 days.
3.What payment methods are accepted for TPS63901YCJR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63901YCJR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63901YCJR?
TPS63901YCJR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63901YCJR 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 TPS63901YCJR?
For technical support, including TPS63901YCJR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63901YCJR requirements.
6.How does Aetrix verify that TPS63901YCJR is sourced from the original manufacturer or authorized distributors?
All TPS63901YCJR 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 TPS63901YCJR meets industry standards.
7.What is the process for return or replacement of TPS63901YCJR?
All TPS63901YCJR units undergo pre-shipment inspection (PSI). If there is an issue with TPS63901YCJR, 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 TPS63901YCJR part is unused and in its original packaging.
Return procedure for TPS63901YCJR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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