AGREE

This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Cookie Statement.
If you decline, your information won’t be tracked when you visit this website. A single cookie will be used in your browser to remember your preference not to be tracked. Find out more here.

RTQ2833A

3A, 18V, High-Efficiency Step-Down Converter with Internally-Compensated Fast Current-Mode Control

RTQ2833A
New

The RTQ2833A is a high-performance, synchronous step-down converter that can deliver up to 3A output current with an input supply voltage range of 4V to 18V. The device integrates low RDS(ON) power MOSFETs, an accurate 0.5V reference, and an integrated diode for the bootstrap circuit to offer a very compact solution.The RTQ2833A adopts internally-compensated fast current-mode (FCM) control architecture that provides fast transient response and further reduces the external-component count. The FCM operates at a truly fixed switching frequency over the line, load, and output voltage range and makes the EMI filter design easier.The device offers a variety of functions for more design flexibility. The selectable switching frequency allows the RTQ2833A to meet various application requirements. An independent enable control input pin and a power-good indicator are provided for easy sequence control. The built-in spread-spectrum frequency modulation further helps system designers with better EMI management.Full protection features are also integrated in the device for increased reliability, including input UVLO, cycle-by-cycle current limit, OVP, UVP, OTP, and selectable soft-start time to control the inrush current during the startup. The RTQ2833A is available in a thermally enhanced WQFN-14L 3x2.5 (FC) package. The recommended junction temperature range is from -40°C to 150°C.

應用

  • Wireless Infrastructure and Wired Communication Equipment
  • Optical and Fiber Network Equipment
  • Testing and Measurement Instruments
  • Healthcare Equipment

主要規格

RTQ2833
Status Active
Vin (min) (V) 4
Vin (max) (V) 18
Number of Outputs 1
Vout (min) (V) 0.5
Vout (max) (V) 7
Output Adj. Method Resistor
Iout (max) (A) 3
Current Limit (typ) (A) 3.3;4.9
Freq (typ) (kHz) 1000;1500;2200;500;750
Ext Sync Yes
Ron_HS (typ) (mOhm) 25
Ron_LS (typ) (mOhm) 13.9
Iq (typ) (mA) 1.7
Features Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Built-in Bootstrap Switch;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;External Synchronization;Fast Transient Response;Force PWM;Internal Compensation;OCP;OTP;OVP;Power Good;Stable with Ceramic Capacitor;UVP
Package Type WQFN3x2.5-14(FC)

關鍵特性

  • 4V to 18V Input Voltage Range

  • 0.5V to 7V Output Voltage

  • Internally-Compensated FCM control

  • Integrated 25mΩ/13.9mΩ MOSFETs

  • 0.5V ±0.5% Voltage Reference Accuracy Over Full Temperature Range

  • Synchronizable to an External Clock

  • Selectable Spread Spectrum Reducing EMI Emission

  • Adjustable Switching Frequency (500kHz/750kHz/1MHz/1.5MHz/2.2MHz)

  • Selectable Current Limit Level

  • Selectable Soft-Start Tim (0.5ms/1ms/2ms/4ms)

  • Monotonic Start-Up into Pre-Biased Outputs

  • Power-Good Indicator

  • Output Overvoltage, Output Undervoltage, Input Undervoltage, Overcurrent, and Over-Temperature Protection

  • -40°C to 150°C Operating Junction Temperature

與銷售人員聯繫