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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Texas Instruments TPS62320YEDT

Name: TPS62320YEDT
Brand: Texas Instruments
SKU: TPS62320YEDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS62320YEDT

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-UFBGA, DSBGA

Datasheet:: TPS62320YEDT.pdf

Description:: IC REG BUCK ADJ 500MA 8DSBGA

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Product details

Overview

TPS62320YEDT from Texas Instruments is an adjustable-output, 500-mA, 3-MHz synchronous step-down DC-DC converter in a 8-pin CSP (Chip Scale Package) with NanoFree™ packaging. It operates from 2.7 V to 6 V input, delivers up to 500 mA output current, features 86 µA quiescent current in power-save mode, and supports external synchronization via MODE/SYNC pin. It is designed for space-constrained portable applications including smart-phones and PDAs powered by single-cell Li-Ion or 3-cell NiMH/NiCd batteries.

For engineers reviewing the TPS62320YEDT datasheet, TPS62320YEDT pinout, TPS62320YEDT application, or TPS62320YEDT equivalent, key selection considerations include its adjustable output voltage range (0.6 V to 5.4 V), integrated active power-down sequencing (TPS6232x only), 35-ns minimum on-time, ±0.5%/+1.3% DC voltage accuracy over temperature, and compatibility with tiny 1-µH inductors and 4.7-µF ceramic capacitors.

Technical Context

The TPS62320YEDT employs a voltage-mode PWM controller with input voltage feed-forward for fast transient response and stable operation across wide input/output conditions. Its dual-MOSFET power stage integrates P-channel (typ. 420 mΩ r_DS(on) at 3.6 V) and N-channel (typ. 330 mΩ r_DS(on) at 3.6 V) switches with independent current limiting - 670–890 mA for P-MOS and ±460–740 mA for N-MOS - enabling robust short-circuit and low-duty-cycle operation.

It operates in fixed-frequency 3-MHz PWM mode under moderate-to-heavy loads and automatically transitions to pulse-frequency modulation (PFM) power-save mode at light loads to maintain high efficiency. The MODE/SYNC pin enables on-the-fly mode selection (GND = auto PFM/PWM; VIN = forced PWM) and external clock synchronization (2.65–3.35 MHz range), supporting multi-rail noise coordination in compact systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7 V to 6 V - supports single-cell Li-Ion (2.7–4.2 V) and 3-cell NiMH/NiCd (3.6–4.5 V) battery inputs without pre-regulation.
Output Current	500 mA continuous - sufficient for core logic rails of DSPs, microcontrollers, and RF ICs in portable devices.
Switching Frequency	3 MHz (±0.35 MHz) - enables use of sub-1-mm-height 1-µH inductors and reduces output capacitor size/ESR requirements.
Quiescent Current	86 µA in PFM mode - extends battery life in standby/sleep states of always-on mobile peripherals.
Output Voltage Accuracy	±0.5% / +1.3% over –40°C to +85°C - ensures stable core voltage for low-voltage processors (e.g., TMS320™ family) across temperature extremes.
Minimum On-Time	35 ns - supports high step-down ratios (e.g., 5 V → 0.6 V at 12% duty cycle) without pulse skipping or instability.
Shutdown Current	<1 µA - meets ultra-low leakage requirements for system-level power-down sequencing in battery-powered designs.

Pinout & Package

TPS62320YEDT is packaged in an 8-pin Chip Scale Package (CSP) with NanoFree™ technology, measuring 1.5 mm × 1.5 mm × 0.55 mm (max height), optimized for minimal PCB footprint and thermal performance in ultra-thin portable devices.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Power Input	Main supply rail input (2.7–6 V); connects directly to input bypass capacitor; powers internal control circuitry and high-side switch.
EN	Enable Control	Active-high digital enable; pulling to GND forces shutdown (<1 µA I_SD); must not be left floating.
ADJ	Adjustable Reference Input	Configures output voltage as V_OUT = 1.5 × V_ADJ; supports external resistor divider for precise programmable regulation (0.6–5.4 V range).
FB	Feedback Sense	Internal reference node (0.4 V nominal); connected to resistor divider on adjustable versions; unused on fixed-output variants.
VOUT	Output Sense	Connects to converter output node; provides feedback path for regulation loop; requires low-ESR ceramic capacitor (≥4.7 µF).
MODE/SYNC	Mode Control & Sync Input	GND = auto PFM/PWM; VIN = forced PWM; external 3-MHz clock input enables synchronized multi-rail operation.
PGND	Power Ground	High-current return path for power stage; must be connected to low-impedance ground plane adjacent to SW pin.
SW	Switch Node	Drain connection of internal P- and N-channel MOSFETs; connects to inductor; requires tight layout to minimize EMI and ringing.

Key Features

Feature	Design Value
Integrated Active Power-Down Sequencing	TPS6232x-specific discharge resistor (30–50 Ω) actively pulls down V_OUT during shutdown, eliminating need for external bleed circuits in sequenced power systems.
35-ns Minimum On-Time	Enables stable 3-MHz operation even at very low duty cycles (e.g., 5 V → 0.6 V), avoiding pulse skipping and maintaining regulation in high-ratio step-downs.
100% Duty Cycle Capability	Allows dropout operation down to V_IN – V_OUT ≈ 0 V, extending battery runtime in deep-discharge conditions without loss of regulation.
On-the-Fly Mode Switching	MODE/SYNC pin permits real-time transition between PFM (high-efficiency light load) and forced PWM (low-noise fixed frequency) without reset or reconfiguration.
NanoFree™ CSP Packaging	8-pin 1.5 × 1.5 mm package eliminates bond wires and leadframe, reducing parasitic inductance and improving thermal resistance (250°C/W) for compact, high-density layouts.

Applications

Smartphone Core Rail	WLAN/Bluetooth Baseband
Use Scenario: Powers ARM-based application processor cores requiring dynamically scalable 0.8–1.4 V at up to 500 mA in LTE smartphones. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise core voltage with fast load transient response. Use Value: 3-MHz switching and 35-ns min on-time support aggressive DVFS schemes; 86 µA quiescent current extends standby time between cellular handshakes.	Use Scenario: Supplies 1.8 V or 3.3 V to WLAN/BT combo chips (e.g., TI WL18xx) in ultra-thin tablets and wearables. IC Role / Device Role / Timing Role: Compact, high-efficiency point-of-load converter with synchronized switching to avoid RF interference in 2.4 GHz ISM band. Use Value: MODE/SYNC pin allows synchronization to system clock or other rails, reducing beat frequencies and EMI peaks critical for FCC/CE certification.
PDA Application Processor	Digital Camera Image Sensor
Use Scenario: Regulates 1.2 V for OMAP or i.MX processors in handheld PDAs with limited PCB area and thermal mass. IC Role / Device Role / Timing Role: Adjustable-output buck converter operating from single Li-Ion cell, supporting dynamic voltage scaling during CPU burst activity. Use Value: ±0.5%/+1.3% DC accuracy over temperature ensures reliable operation across –40°C to +85°C industrial PDA environments.	Use Scenario: Powers CMOS image sensor analog and digital domains (1.2 V, 2.8 V) in compact digital cameras with strict height constraints. IC Role / Device Role / Timing Role: Ultra-small CSP buck converter delivering clean, low-ripple power to noise-sensitive pixel arrays and ADC front-ends. Use Value: 93% peak efficiency at 3 MHz minimizes self-heating near optics; 100% duty cycle maintains regulation during battery sag below 3 V.

Smartphone Core Rail

WLAN/Bluetooth Baseband

Use Scenario: Powers ARM-based application processor cores requiring dynamically scalable 0.8–1.4 V at up to 500 mA in LTE smartphones.

IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise core voltage with fast load transient response.

Use Value: 3-MHz switching and 35-ns min on-time support aggressive DVFS schemes; 86 µA quiescent current extends standby time between cellular handshakes.

Use Scenario: Supplies 1.8 V or 3.3 V to WLAN/BT combo chips (e.g., TI WL18xx) in ultra-thin tablets and wearables.

IC Role / Device Role / Timing Role: Compact, high-efficiency point-of-load converter with synchronized switching to avoid RF interference in 2.4 GHz ISM band.

Use Value: MODE/SYNC pin allows synchronization to system clock or other rails, reducing beat frequencies and EMI peaks critical for FCC/CE certification.

PDA Application Processor

Digital Camera Image Sensor

Use Scenario: Regulates 1.2 V for OMAP or i.MX processors in handheld PDAs with limited PCB area and thermal mass.

IC Role / Device Role / Timing Role: Adjustable-output buck converter operating from single Li-Ion cell, supporting dynamic voltage scaling during CPU burst activity.

Use Value: ±0.5%/+1.3% DC accuracy over temperature ensures reliable operation across –40°C to +85°C industrial PDA environments.

Use Scenario: Powers CMOS image sensor analog and digital domains (1.2 V, 2.8 V) in compact digital cameras with strict height constraints.

IC Role / Device Role / Timing Role: Ultra-small CSP buck converter delivering clean, low-ripple power to noise-sensitive pixel arrays and ADC front-ends.

Use Value: 93% peak efficiency at 3 MHz minimizes self-heating near optics; 100% duty cycle maintains regulation during battery sag below 3 V.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62321YED	Fixed 1.5 V output (vs. adjustable TPS62320YEDT); identical CSP-8 package, pinout, and electrical specs otherwise.	Suitable where fixed 1.5 V rail is required (e.g., DDR memory termination), eliminating external feedback resistors and saving BOM cost.	Select TPS62321YED when output voltage is fixed and board space for feedback network must be minimized.
TPS62303YZD	Fixed 1.8 V output in CSP-8; lacks integrated power-down sequencing (no R_DIS) and has higher UVLO threshold (2.4 V vs. 2.4 V, same).	Better suited for non-sequenced 1.8 V rails (e.g., I/O interfaces) where active discharge is unnecessary and simpler design is preferred.	Choose TPS62303YZD for cost-sensitive 1.8 V applications without strict power-down timing requirements.

Compared with TPS62321YED (fixed 1.5 V) and TPS62303YZD (fixed 1.8 V), the TPS62320YEDT offers full output voltage flexibility (0.6–5.4 V) and integrated active discharge-critical for systems requiring dynamic voltage scaling and controlled power-down sequences in space-constrained portable designs.

Availability

TPS62320YEDT is available at Aetrix Electronics and suitable for smartphone core rails, WLAN/Bluetooth baseband supplies, PDA application processors, and digital camera image sensor power delivery requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for TPS62320YEDT 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 and industrial applications.

The TPS623xx family was engineered specifically for battery-powered portable electronics, emphasizing ultra-small footprint, high switching frequency, and adaptive power-save operation to maximize runtime and minimize solution size in space- and thermally constrained devices.

FAQ

What is the recommended inductor value for TPS62320YEDT in a typical 3.6 V to 1.8 V application?

The TPS62320YEDT is optimized for 1 µH inductors in standard configurations, as validated in TI's SLVS528E datasheet Figure 1 and typical characteristics. Using a 1 µH shielded inductor (e.g., FDK MIPW3226 series) with ≤100 mΩ DCR ensures stable 3-MHz operation, minimal output ripple, and optimal efficiency across 0–500 mA load range. Larger values increase size and reduce transient response; smaller values risk peak current limit triggering.

Does TPS62320YEDT support true 100% duty-cycle operation, and what is its practical benefit?

Yes, TPS62320YEDT supports 100% duty-cycle operation, allowing V_OUT to remain regulated even when V_IN drops to within ~100 mV of V_OUT. This is critical for maximizing battery utilization in Li-Ion systems - for example, sustaining a 1.2 V core rail down to 1.3 V input - thereby extending usable runtime by 5–10% compared to converters with fixed dropout voltage.

How does the MODE/SYNC pin function in TPS62320YEDT, and can it be left unconnected?

The MODE/SYNC pin on TPS62320YEDT must never be left floating: tying it to GND enables automatic PFM/PWM mode switching, pulling it to VIN forces fixed-frequency PWM, and applying an external 3-MHz clock synchronizes switching. Leaving it unconnected risks erratic mode behavior and unstable regulation due to noise coupling, violating TI's absolute maximum ratings and functional specifications.

What is the purpose of the ADJ pin on TPS62320YEDT, and how is it used to set output voltage?

The ADJ pin on TPS62320YEDT sets output voltage via V_OUT = 1.5 × V_ADJ. For adjustable operation, a resistor divider from V_OUT to GND and from ADJ to GND configures V_ADJ, e.g., 100 kΩ from V_OUT to ADJ and 150 kΩ from ADJ to GND yields 1.5 V at ADJ and thus 2.25 V at V_OUT. This direct scaling simplifies precision regulation without external op-amps or complex compensation.

Is TPS62320YEDT compatible with ceramic output capacitors, and what is the minimum recommended value?

Yes, TPS62320YEDT is fully compatible with X5R/X7R ceramic output capacitors. TI specifies a minimum of 4.7 µF (e.g., 0603 or 0805 case) placed close to VOUT and PGND pins. Lower values may cause excessive output ripple (>2% V_OUT) and reduced phase margin; larger values (e.g., 10 µF) improve transient response but offer diminishing returns beyond 10 µF in 3-MHz operation.

TPS62320YEDT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 8-UFBGA, DSBGA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 0.6V

Voltage - Output (Max):: 5.4V

Current - Output:: 500mA

Frequency - Switching:: 3MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-DSBGA

TPS62320YEDT FAQ

1.How can I place an order for TPS62320YEDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS62320YEDT 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 TPS62320YEDT reliable?

The price and inventory of TPS62320YEDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62320YEDT is usually 5 days.

3.What payment methods are accepted for TPS62320YEDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62320YEDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS62320YEDT?

TPS62320YEDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS62320YEDT 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 TPS62320YEDT?

For technical support, including TPS62320YEDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62320YEDT requirements.

6.How does Aetrix verify that TPS62320YEDT is sourced from the original manufacturer or authorized distributors?

All TPS62320YEDT 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 TPS62320YEDT meets industry standards.

7.What is the process for return or replacement of TPS62320YEDT?

All TPS62320YEDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62320YEDT, 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 TPS62320YEDT part is unused and in its original packaging.

Return procedure for TPS62320YEDT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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