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Texas Instruments TPS563211
4.2-V to 18-V, 3-A, synchronous buck converter with 1% accuracy, PG/SS and PFM/forced-PWM in SOT583
Overview
| Topology | Buck Converter |
| Input voltage | 4.2-18 V |
| Output 1 | 3.3 V / 3 A |
Description
The TPS563211 is a cost effective and highly flexible synchronous buck converter that provides selectable Eco-mode operation or FCCM (Force Continuous Conduction Mode) operation. Selectable Power-Good indicator or external Soft-Start is also configurable through the MODE pin. Power sequencing is possible by correctly configuring the Enable, Power-Good indicator or external Soft-Start. A wide input voltage range of 4.2 V to 18 V supports a wide variety of common input rails like 12 V and 15 V. It supports up to 3 A continuous output current at output voltages between 0.6 V and 7 V. The device provides fast transient response with true fixed switching frequency through the use of the Advanced Emulated Current Mode (AECM) control topology. With internal smart loop bandwidth control, the device provides fast transient response over a wide output voltage range without the need for external compensation. Cycle-by-cycle current limit on the high-side peak current protects the device in overload situations and is enhanced by a low-side valley current limit, which prevents current runaway. Hiccup mode would be triggered under overvoltage protection (OVP), undervoltage protection (UVP), UVLO protection and thermal shutdown. The device is available in 1.6-mm x 2.1-mm SOT583 package.
Features
- Input voltage: 4.2 V to 18 V
- Output voltage: 0.6 V to 7 V– Up to 3-A continuous output current– Minimum switching on-time: 45-ns– Maximum duty cycle: 98%
- High efficiency– Integrated 66-mΩ and 33-mΩ MOSFETs– Quiescent current 120-μA typical
- Highly flexible and easy-to-use– Selectable Eco-mode or FCCM operation– Selectable power good indicator or external soft start– Precise enable input
- High accuracy– Reference voltage accuracy: ±1% (25°C)– Switching frequency tolerance: ±8.5%
- Small solution size– Internal compensation for ease of use– SOT583 package– Minimum external components
- Cycle-by-cycle current limit for both high-side and low-side MOSFETs
- Non-latched OVP, UVP, UVLO, and TSD protections
- Create a custom design using TPS563211 with the WEBENCH® Power Designer
Typical applications
- Wired networking, broadband
- Set-top box (STB), digital TV, Smart speaker, Surveillance
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Mount | Pins | Type | IR(A) | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-LHMI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | – | – | – | Size7050 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length7.3 mm | Width6.6 mm | Height4.8 mm | – | – | Inductance3.3 µH | Performance Rated Current7.5 A | Saturation Current @ 10%7.9 A | Saturation Current @ 30%15.1 A | DC Resistance20.9 mΩ | Self Resonant Frequency26 MHz | MountSMT | – | – | – | – | ||||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length2.54 mm | – | – | – | PackagingBag | – | – | – | – | – | – | MountTHT | Pins1 | TypeStraight | Rated Current3 A | Working Voltage250 V (AC) |