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Texas Instruments TPS62619YFDR
- Part No.:
- TPS62619YFDR
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62619YFDR.pdf
- Description:
- IC REG BUCK 1.8V 350MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,282
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Product details
Overview
TPS62619YFDR from Texas Instruments is a 350-mA, 6-MHz synchronous step-down DC-DC converter in a 6-pin NanoFree™ CSP package (0.4 mm max height), delivering fixed 1.8 V output with ±2% DC accuracy, 90% peak efficiency, and 31 µA quiescent current - optimized for Li-ion–powered portable devices such as smartphones and Bluetooth modules.
For engineers reviewing the TPS62619YFDR datasheet, TPS62619YFDR pinout, TPS62619YFDR application, or TPS62619YFDR equivalent, this page provides verified technical context on PFM/PWM auto-switching operation, 2.3 V–5.5 V input range, integrated soft-start, active power-down sequencing, and ultra-low-profile solution size (<10 mm²) using only three surface-mount components.
Technical Context
The TPS62619YFDR employs a frequency-locked ring-oscillating modulator architecture-eliminating traditional compensation loops-to achieve instantaneous load/line transient response and inherent stability across ceramic inductor/capacitor variations. It operates at regulated 6 MHz in PWM mode and transitions to discontinuous-conduction-mode (DCM) PFM at light loads.
Its dual-MOSFET power stage features 270 mΩ P-channel and 140 mΩ N-channel rDS(on) (at VGS = 3.6 V), enabling high efficiency across 0–350 mA load range. MODE pin selection forces fixed-frequency PWM for noise-sensitive applications, while EN pin enables shutdown with 0.2–1 µA leakage current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.8 V with ±2% total DC accuracy over line/load/temperature - ensures stable core logic supply for low-voltage SoCs. |
| Switching frequency | Regulated 6 MHz (5.4–6.6 MHz) - enables use of sub-1 µH chip inductors and minimizes EMI filter footprint. |
| Max output current | 350 mA continuous - supports RF transceivers and multi-core application processors in space-constrained handhelds. |
| Quiescent current | 31 µA typical in PFM mode - extends battery life in standby without sacrificing transient response. |
| Input voltage range | 2.3 V to 5.5 V - fully covers single-cell Li-ion (2.7–4.2 V) with extended discharge down to 2.3 V. |
| PSRR | 50 dB at 10 kHz (PWM mode) - suppresses noise from noisy shared battery rails in mixed-signal systems. |
| Start-up time | 96 ms to full regulation - meets smartphone boot timing requirements with internal 100-ms soft-start ramp. |
Pinout & Package
TPS62619YFDR uses a 6-pin NanoFree™ Chip-Scale Package (CSP-6), 0.4 mm maximum height, 0.8 mm × 0.8 mm body, 0.4 mm pitch - compatible with standard 0402/0603 passive placement and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to VOUT; sets regulation point via internal 0.8 V reference - no external resistor divider required. |
| VIN (A2) | Power input | Accepts 2.3–5.5 V; supplies bias and switching power - decoupled with 4.7 µF 0402 ceramic capacitor. |
| SW (B1) | Switch node | Drain connection of internal P/N MOSFETs - routes to inductor; requires tight layout to minimize EMI and ringing. |
| MODE (A1) | Operating mode control | Pull low for auto PFM/PWM; pull high for forced PWM - enables dynamic noise/efficiency trade-off during system operation. |
| EN (B2) | Enable input | Active-high logic; <0.4 V disables device with 0.2–1 µA shutdown current - supports sequenced power-up in multi-rail systems. |
| GND (C2) | Ground reference | Power and signal return - must be connected to low-impedance ground plane under CSP thermal pad for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic PFM/PWM mode switching | Maintains >85% efficiency from 10 µA to 350 mA load - eliminates manual mode control and improves battery runtime across usage states. |
| Integrated active power-down sequencing | 15 Ω internal discharge resistor - safely discharges VOUT within milliseconds after shutdown, preventing back-powering of downstream circuitry. |
| Ultra-thin sub-0.4-mm solution profile | Total PCB area <10 mm² with 0603 inductor and two 0402 capacitors - enables integration into slim mobile form factors and stacked PCB architectures. |
| Best-in-class transient response | ≤20 mV undershoot/overshoot for 30–150 mA load steps - sustains stable core voltage during CPU burst activity without external compensation. |
| Internal soft-start (100 ms) | Progressive on-time ramp from 35 ns - prevents input voltage sag and inrush current damage when powered from weak sources like coin cells or aging batteries. |
Applications
| Smartphone Application Processor Core Supply | Bluetooth Low Energy (BLE) Radio Module |
|---|---|
|
Use Scenario: Powers ARM Cortex-A series application processor cores requiring tightly regulated 1.8 V at up to 300 mA during burst compute cycles. IC Role / Device Role / Timing Role: Primary buck regulator providing clean, fast-response VDD_CORE with automatic PFM-to-PWM transition during wake/sleep transitions. Use Value: Delivers 90% efficiency at 6 MHz switching, reducing thermal load and enabling thinner chassis design versus linear regulators. |
Use Scenario: Supplies 1.8 V to BLE SoC radios (e.g., CC2640R2F) in wearables with intermittent transmit/receive duty cycles. IC Role / Device Role / Timing Role: Ultra-low-IQ DC-DC converter maintaining regulation during 10 µA sleep currents and scaling instantly to 150 mA TX peaks. Use Value: 31 µA quiescent current extends coin-cell battery life beyond 2 years; 6 MHz operation avoids interference with 2.4 GHz ISM band. |
| GPS/GLONASS Front-End LNA Bias | DTV Tuner IF Signal Chain |
|
Use Scenario: Provides low-noise 1.8 V bias to GPS low-noise amplifiers in automotive navigation units with wide temperature range. IC Role / Device Role / Timing Role: High-PSRR (50 dB @ 10 kHz) buck converter operating in forced PWM mode to suppress switching noise near sensitive RF paths. Use Value: Enables direct replacement of LDOs with 3× higher efficiency while meeting stringent RF noise floor requirements (<–120 dBm). |
Use Scenario: Powers analog front-end and demodulator ICs in digital TV tuners where compact board area and thermal constraints limit heat dissipation. IC Role / Device Role / Timing Role: Space-optimized 350 mA buck converter delivering 1.8 V from 3.3 V or 5 V rail with <0.4 mm height constraint. Use Value: Sub-10 mm² solution size allows integration into miniaturized tuner modules without compromising thermal derating or reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62260DRVR | Same 6-pin CSP package but 2.5 V fixed output; 300 mA max; 24 µA IQ; 2.05–6.5 V input range. | Designed for 2.5 V I/O rails or legacy interface logic - not suitable for 1.8 V core supplies without external feedback. | Select TPS62260DRVR only when 2.5 V output and wider input range are required; verify compatibility with existing 1.8 V load circuitry. |
| TPS62740DSSR | Lower IQ (360 nA in shutdown, 250 nA in operation); 200 mA output; 1.8–5.5 V input; 2.5 MHz switching. | Optimized for ultra-low-power IoT sensors - trades switching speed and output current for extreme energy harvesting compatibility. | Choose TPS62740DSSR for batteryless or energy-harvesting designs needing nanowatt operation; avoid for 350 mA or high-speed transient loads. |
Compared with TPS62619YFDR, TPS62260DRVR offers higher input voltage tolerance but lacks 1.8 V output, while TPS62740DSSR achieves orders-of-magnitude lower quiescent current at the cost of reduced current capability and slower regulation - making TPS62619YFDR optimal for balanced efficiency, size, and performance in mainstream portable electronics.
Availability
TPS62619YFDR is available at Aetrix Electronics and suitable for smartphone power management, wearable BLE subsystems, GPS front-end biasing, and DTV tuner modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPS62619YFDR 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 for portable and industrial applications.
The TPS6261x product line was designed specifically for ultra-thin, battery-powered consumer electronics - prioritizing minimal solution size, best-in-class light-load efficiency, and seamless PFM/PWM mode transitions without external compensation.
FAQ
What is the output voltage tolerance of the TPS62619YFDR over temperature and load?
The TPS62619YFDR delivers a fixed 1.8 V output with ±2% total DC accuracy across –40°C to +85°C ambient temperature, 2.3 V–5.5 V input voltage, and 0–350 mA load current. This specification includes initial tolerance, line regulation (0.13%/V), load regulation (–0.0002%/mA), and thermal drift - ensuring reliable core voltage for modern low-voltage SoCs without external trimming.
Does the TPS62619YFDR require external compensation components?
No, the TPS62619YFDR uses a frequency-locked ring-oscillating modulator architecture that eliminates the need for external compensation networks. Its inherent stability supports standard 0603 MLCC inductors and 0402 ceramic capacitors across the full operating range - simplifying layout and reducing BOM count to just three external components.
How does the MODE pin affect efficiency and noise performance in the TPS62619YFDR?
When MODE is pulled low, the TPS62619YFDR automatically switches between high-efficiency PFM (light load) and regulated 6 MHz PWM (heavy load). When MODE is pulled high, it forces fixed-frequency PWM operation - reducing output noise and simplifying EMI filtering at the cost of ~15–20% lower light-load efficiency. The choice depends on system noise sensitivity versus battery life requirements.
What is the recommended inductor value for the TPS62619YFDR in a typical 1.8 V application?
Texas Instruments recommends a 1.0 µH shielded chip inductor (e.g., Murata LQM21PN1R0MC0) for the TPS62619YFDR at 1.8 V output. This value balances peak inductor current (≤850 mA), 6 MHz switching stability, and minimal solution size. Inductor saturation current must exceed 1.1 A to accommodate P-channel MOSFET current limit and transient surges.
Can the TPS62619YFDR safely discharge its output capacitor when disabled?
Yes, the TPS62619YFDR integrates an active discharge path with a 15 Ω (typical) internal resistor between VOUT and GND. When EN is pulled low, this resistor discharges the output capacitor - preventing back-powering of upstream circuitry and ensuring safe power sequencing in multi-rail systems. Discharge time depends on COUT value and load conditions.
TPS62619YFDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-XFBGA, DSBGA
- 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):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 350mA
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS62619YFDR FAQ
1.How can I place an order for TPS62619YFDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62619YFDR 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 TPS62619YFDR reliable?
The price and inventory of TPS62619YFDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62619YFDR is usually 5 days.
3.What payment methods are accepted for TPS62619YFDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62619YFDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62619YFDR?
TPS62619YFDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62619YFDR 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 TPS62619YFDR?
For technical support, including TPS62619YFDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62619YFDR requirements.
6.How does Aetrix verify that TPS62619YFDR is sourced from the original manufacturer or authorized distributors?
All TPS62619YFDR 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 TPS62619YFDR meets industry standards.
7.What is the process for return or replacement of TPS62619YFDR?
All TPS62619YFDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62619YFDR, 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 TPS62619YFDR part is unused and in its original packaging.
Return procedure for TPS62619YFDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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