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TPS562210SDBVR

4.5-17V input, 2A synchronous buck, D-CAP2 control, 650kHz, Eco-mode, no ext comp in SOT-23-8

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Pieza del fabricante：

TPS562210SDBVR

Paquete：

SOT-23-THN (1.60 x 2.90 x 1.00 mm)

Marca：
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Descripción

Productos

The TPS562210SDBVR from Texas Instruments is a 4.5V to 17V input, 2A synchronous step-down converter in an 8-pin SOT-23-THN package. It uses D-CAP2 control mode for fast transient response with no external compensation, and Advanced Eco-mode for high light-load efficiency.

Especificaciones

Input Voltage Range 4.5V ~ 17V
Output Voltage Range 0.76V ~ 7V (Adjustable)
Corriente de salida 2A
Switching Frequency 650kHz (Fixed)
Control Mode D-CAP2 (No external compensation)
Light Load Mode Advanced Eco-mode (Pulse-skipping)
Feedback Voltage Accuracy 1% at 25°C
Shutdown Current <10uA
Paquete SOT-23-THN (1.60 x 2.90mm)
Temperatura de funcionamiento -40°C ~ +85°C

Características

  • D-CAP2 control mode for fast transient response without external compensation
  • Advanced Eco-mode maintains high efficiency at light loads
  • Integrated 133mOhm high-side and 80mOhm low-side MOSFETs
  • 1% feedback voltage accuracy for tight output regulation
  • Power-good output for power sequencing
  • Adjustable soft-start with external capacitor
  • Cycle-by-cycle overcurrent limit with hiccup-mode protection
  • Startup from pre-biased output

Aplicaciones

  • 5V and 12V rail point-of-load converters
  • Digital set-top-box power supplies
  • Telecom and networking equipment
  • Consumer electronics POL regulation
  • SSD and storage device power

The TPS562210SDBVR from Texas Instruments is a simple, easy-to-use 2A synchronous step-down converter in a compact 8-pin SOT-23-THN package. It features D-CAP2 control mode, which provides fast transient response and eliminates the need for external compensation components, simplifying design. The device operates from a 4.5V to 17V input range and produces an adjustable output from 0.76V to 7V. The fixed 650kHz switching frequency balances efficiency and component size. Advanced Eco-mode maintains high efficiency at light loads by pulse-skipping when the inductor current reaches zero. The integrated 133mOhm high-side and 80mOhm low-side MOSFETs provide low conduction losses for high efficiency. The power-good output indicates output regulation status, enabling power sequencing in multi-rail systems.

The TPS562210 employs TI’s D-CAP2 control mode, a proprietary constant on-time architecture with internal ripple injection. The on-time is calculated from the input voltage to maintain approximately constant switching frequency. The error comparator compares the FB pin voltage with a 0.76V internal reference plus a synthetic ripple signal. When the FB voltage falls below the reference plus ripple, a new on-time pulse is initiated. This naturally provides fast transient response because the on-time is triggered immediately when the output drops. The internal ripple injection eliminates the need for output capacitor ESR for stability, allowing the use of low-ESR ceramic capacitors. In Advanced Eco-mode, the low-side MOSFET is turned off when the inductor current reaches zero at light loads, preventing negative inductor current and improving efficiency. Overcurrent protection uses cycle-by-cycle current limiting with hiccup-mode restart after a fault timeout period.

Pin Nombre Función
1 GND Suelo
2 SW Switch node – connect to output inductor
3 VIN Input supply voltage (4.5V-17V)
4 PG Power-good open-drain output
5 SS Soft-start – connect capacitor to GND
6 VFB Feedback input from output voltage divider
7 ES Enable – pull high to enable, low to shutdown
8 VBST Bootstrap capacitor for high-side gate driver
  • 5V to 3.3V/1.8V POL Converter: D-CAP2 control provides fast transient response for FPGA/CPU core rails; no external compensation reduces BOM
  • Set-Top-Box Power Supply: 12V input compatibility with Eco-mode for standby power compliance; PG output enables power sequencing
  • SSD Power Management: Compact SOT-23-8 footprint fits within SSD PCB area constraints; 2A supports read/write peak current
  • Networking Equipment POL: 17V max input accommodates 12V intermediate bus; hiccup-mode protection ensures fault recovery
Modelo Fabricante Diferencia clave
TPS563210SDBVR TI 3A version, pin-compatible
TPS562210ADDFR TI Same, updated A-version, SOT-23-THN
TLV62569DBVR TI 5.5V max input, 2A, SOT-23-6
MP8759GD-Z MPS 18V, 5A, QFN-12
SY8120BABC Silergy 18V, 2A, SOT-23-6, low cost
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