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Texas Instruments TPS62619YFDT
- Part No.:
- TPS62619YFDT
- Manufacturer:
- Texas Instruments
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
TPS62619YFDT.pdf
- Description:
- IC REG BUCK 1.8V 350MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:195
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Product details
Overview
TPS62619YFDT from Texas Instruments is a 350-mA, 6-MHz synchronous step-down DC-DC converter in a 6-pin NanoFree™ chip-scale package (CSP-6, height < 0.4 mm), delivering fixed 1.8 V output with ±2% total DC voltage 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 TPS62619YFDT datasheet, TPS62619YFDT pinout, TPS62619YFDT application, or TPS62619YFDT equivalent, key selection criteria include its ultra-thin CSP-6 footprint, automatic PFM/PWM mode switching across 0–350 mA load range, 2.3–5.5 V input compatibility, integrated soft-start (100-ms startup), and >50 dB PSRR at 1–10 kHz - all critical for space-constrained, battery-sensitive designs.
Technical Context
The TPS62619YFDT employs a frequency-locked ring-oscillating modulator architecture that eliminates traditional compensation loops, enabling instantaneous transient response and inherent stability across varied inductor/capacitor values. It operates at a regulated 6 MHz in PWM mode and transitions seamlessly 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), supporting up to 350 mA output with internal current limiting (850–1200 mA) and thermal shutdown (140 °C). The MODE pin selects between auto PFM/PWM or forced PWM operation for noise-sensitive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V with ±2% total DC accuracy - ensures stable core supply for low-voltage processors and RF ICs without external feedback resistors. |
| Max Output Current | 350 mA - sufficient to power baseband processors, WLAN transceivers, or GPS receivers in handheld devices. |
| Switching Frequency | 6 MHz (regulated, ±10%) - enables use of sub-1-µH chip inductors and 0402 ceramic capacitors for ultra-compact layouts. |
| Quiescent Current | 31 µA (typ) in PFM mode - extends battery life in standby/sleep states of always-on mobile peripherals. |
| Input Voltage Range | 2.3 V to 5.5 V - supports full discharge curve of single-cell Li-ion (2.7–4.2 V) plus headroom for USB or adapter inputs. |
| Efficiency Peak | 90% at 6 MHz - achieves higher conversion efficiency than LDOs under medium-to-heavy loads while maintaining low ripple. |
| PSRR | >50 dB (1–10 kHz) - suppresses noise from noisy battery rails or shared PMIC outputs, critical for analog/RF sections. |
Pinout & Package
TPS62619YFDT is housed in a 6-pin NanoFree™ chip-scale package (CSP-6), measuring 1.2 mm × 0.8 mm × 0.37 mm (max height), compatible with standard SMT reflow and suitable for ultra-thin mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (C1) | Feedback sense input | Connects directly to VOUT; internal resistor divider sets 1.8 V output - no external resistors required. |
| VIN (A2) | Power input | Accepts 2.3–5.5 V; feeds internal bias circuitry and high-side switch - requires local 4.7 µF ceramic decoupling. |
| SW (B1) | Switch node | Drain connection of internal P/N-MOSFET pair; connects to inductor - must be routed with minimal loop area for EMI control. |
| MODE (A1) | Operating mode select | Pull low for auto PFM/PWM; pull high for forced PWM - enables dynamic noise/efficiency trade-off during system operation. |
| EN (B2) | Enable control | Active-high logic input; drives device into shutdown (<1 µA IQ) when grounded - supports sequenced power-up. |
| GND (C2) | Power ground | Primary return path for power and control circuits - must be connected to solid ground plane beneath CSP die pad. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile solution | Total height < 0.4 mm with 0603 inductor and two 0402 MLCCs - fits within 1.0 mm Z-height constraints of modern smartphones. |
| Automatic PFM/PWM transition | Seamless mode switching at load-dependent boundaries - maintains >85% efficiency from 10 µA to 350 mA without external control. |
| Integrated active discharge | 15 Ω internal discharge resistor - safely bleeds VOUT capacitor after shutdown, preventing latch-up in multi-rail systems. |
| High PSRR + fast transient response | >50 dB PSRR (1–10 kHz) and <20 µs load-step recovery - stabilizes sensitive RF/analog supplies without additional LDO post-regulation. |
| Internal soft-start | 100-ms controlled ramp-up - limits inrush current into 4.7 µF output cap, avoiding brownout on weak battery sources. |
Applications
| Smartphone Application | Bluetooth/WLAN Module |
|---|---|
Use Scenario: Powering application processor I/O or memory interface in compact smartphone mainboard. IC Role / Device Role / Timing Role: Primary 1.8 V buck regulator supplying core logic voltage with tight regulation and low noise. Use Value: Enables direct replacement of inefficient LDOs while maintaining 90% efficiency at 200 mA and <20 mVPP ripple in PFM mode. |
Use Scenario: Supplying 1.8 V to Bluetooth 5.0 or Wi-Fi 4/5 transceiver ICs in wearable or IoT edge nodes. IC Role / Device Role / Timing Role: Dedicated point-of-load converter with forced-PWM capability for RF section noise isolation. Use Value: Achieves >50 dB PSRR at 2.4 GHz harmonics and supports rapid enable/disable sequencing via EN pin. |
| DTV Tuner Front-End | DC/DC Micro Module Integration |
Use Scenario: Providing clean 1.8 V bias to tuner IF amplifiers and ADC drivers in portable digital TV receivers. IC Role / Device Role / Timing Role: Low-noise, high-PSRR DC-DC stage placed adjacent to analog signal chain. Use Value: Delivers <10 mVPP ripple in PFM mode and rejects switching noise from shared battery rail via >50 dB PSRR. |
Use Scenario: Embedded in miniature DC/DC micro modules requiring sub-10 mm² total solution size. IC Role / Device Role / Timing Role: Core switching regulator enabling complete module integration with only three external passives. Use Value: Reduces bill-of-materials to one 0603 inductor and two 0402 capacitors - total solution area <10 mm². |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62612YFDT | Fixed 1.5 V output; identical package, pinout, and feature set. | Targets lower-core-voltage SoCs (e.g., certain ARM Cortex-M series) instead of 1.8 V I/O domains. | Select when system requires 1.5 V rail with same size, efficiency, and transient performance. |
| TPS62615YFDT | Fixed 1.2 V output; same CSP-6 package and 350 mA rating but different FB divider ratio. | Suitable for powering low-voltage DSPs or FPGA I/O banks where 1.2 V is specified. | Choose for 1.2 V applications needing identical board layout and thermal profile as TPS62619YFDT. |
Compared with TPS62612YFDT and TPS62615YFDT, the TPS62619YFDT provides the precise 1.8 V output required for memory interfaces and RF front-ends, while sharing identical footprint, thermal behavior, and control features - enabling family-based BOM optimization without redesign.
Availability
TPS62619YFDT is available at Aetrix Electronics and suitable for smartphone power management, Bluetooth/WLAN module design, and DTV tuner applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62619YFDT 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 technologies, with decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS6261x product line was designed specifically for ultra-thin, battery-powered portable devices - emphasizing minimal solution size, best-in-class light-load efficiency, and seamless transient response without external compensation.
FAQ
What is the output voltage of the TPS62619YFDT?
The TPS62619YFDT delivers a fixed 1.8 V output with ±2% total DC voltage accuracy over temperature, line, and load conditions. This value is set internally by a precision resistor divider - no external feedback components are required. The device maintains this regulation across its full 0–350 mA load range and 2.3–5.5 V input span, making it ideal for powering 1.8 V I/O domains in mobile processors and RF ICs.
Does the TPS62619YFDT require external feedback resistors?
No, the TPS62619YFDT does not require external feedback resistors. Its 1.8 V output is factory-trimmed using an internal precision resistor divider connected to the FB pin. The FB pin (C1) must be connected directly to the output capacitor to close the regulation loop. Adding external resistors would disrupt the calibrated output and is not supported per the datasheet.
How does the MODE pin affect TPS62619YFDT operation?
The MODE pin on the TPS62619YFDT selects between two operating modes: pulling MODE low enables automatic PFM/PWM switching for maximum efficiency across load range, while pulling MODE high forces continuous PWM operation for fixed-frequency, low-noise performance. This allows real-time trade-off between battery life and EMI sensitivity - critical for RF coexistence in smartphones and wearables.
What is the recommended inductor for TPS62619YFDT?
The TPS62619YFDT is optimized for use with a 1.0 µH chip inductor, such as Murata LQM21PN1R0MC0 (0603 size). This value supports stable 6 MHz operation across the full input/output range and enables the smallest possible solution size. Inductor saturation current must exceed 600 mA to accommodate peak currents during transient events and startup.
Can the TPS62619YFDT be used with input voltages below 2.3 V?
No - the TPS62619YFDT has an absolute minimum input voltage of 2.3 V and incorporates undervoltage lockout (UVLO) with a typical threshold of 2.05 V. Operation below 2.3 V is outside the recommended operating conditions and may result in unregulated output, increased ripple, or failure to start. For sub-2.3 V battery applications, consider TI's TPS6274x series or alternative ultra-low-VIN regulators.
TPS62619YFDT 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
TPS62619YFDT FAQ
1.How can I place an order for TPS62619YFDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62619YFDT 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 TPS62619YFDT reliable?
The price and inventory of TPS62619YFDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62619YFDT is usually 5 days.
3.What payment methods are accepted for TPS62619YFDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62619YFDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62619YFDT?
TPS62619YFDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62619YFDT 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 TPS62619YFDT?
For technical support, including TPS62619YFDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62619YFDT requirements.
6.How does Aetrix verify that TPS62619YFDT is sourced from the original manufacturer or authorized distributors?
All TPS62619YFDT 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 TPS62619YFDT meets industry standards.
7.What is the process for return or replacement of TPS62619YFDT?
All TPS62619YFDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62619YFDT, 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 TPS62619YFDT part is unused and in its original packaging.
Return procedure for TPS62619YFDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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