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The RTQ5756 series products are synchronous step-down converters with 4-phase capability, allowing for both multiphase and single-phase operations. These products offer a wide range of configuration options.The RTQ5756A provides triple outputs with 2+1+1 phase, while the RTQ5756B offers quad outputs with 1+1+1+1 phase. The RTQ5756C provides dual outputs with 3+1 phase, and the RTQ5756D offers a single output with 4-phase. Lastly, the RTQ5756E provides dual outputs with 2+2 phase. This flexibility and high integration make the RTQ5756 series suitable for various applications that require high current and compact power management solutions, such as low-power processors, I/O power, the core power of FPGA, DSP, and other ASICs. With an input voltage range of 3V to 5.5V, these converters are compatible with a wide variety of low voltage systems. They can deliver up to 20A peak current and support output voltages ranging from 0.4V to 1.55V. The RTQ5756 series products also offer programmable functions, including voltage level, voltage change slew rate, and soft-start slew rate, which can be controlled through an I2C interface operating at up to 3.4MHz. Additionally, these products support remote-sense function to ensure accurate output voltage under heavy loads. They are equipped with interrupt and fault-detection functions to report any error status. The RTQ5756 series products are available in a WL-CSP-54B 2.69x3.92 (BSC) package.The recommended junction temperature range is -40°C to 125°C. See Ordering Information for the key features of each part number.

應用

  • Home Gateway and Access Point Networks
  • Optical Modules
  • Set-Top Boxes and OTT Devices
  • Storage Systems
  • Surveillance Systems
主要規格
RTQ5756A RTQ5756B RTQ5756C RTQ5756D RTQ5756E
Status Active Preview Preview Preview Preview
Vin (min) (V) 3 3 3 3 3
Vin (max) (V) 5.5 5.5 5.5 5.5 5.5
Number of Outputs 3 4 2 1 2
Vout (min) (V) 0.4 0.4 0.4 0.4 0.4
Vout (max) (V) 2.05 2.05 2.05 2.05 2.05
Output Adj. Method Digital Digital Digital Digital Digital
Iout (max) (A) 10 5 15 20 10
Current Limit (typ) (A) 16 8 24 32 16
Freq (typ) (kHz) 2000 2000 2000 2000 2000
Ext Sync No No No No No
Ron_HS (typ) (mOhm) 22 22 22 22 22
Ron_LS (typ) (mOhm) 13 13 13 13 13
Iq (typ) (mA) 0.33 0.4 0.26 0.19 0.26
Interface I2C I2C I2C I2C I2C
Features ACOT Control;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;I2C;Internal Compensation;OCP;OTP;OVP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP ACOT Control;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;I2C;Internal Compensation;OCP;OTP;OVP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP ACOT Control;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;I2C;Internal Compensation;OCP;OTP;OVP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP ACOT Control;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;I2C;Internal Compensation;OCP;OTP;OVP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP ACOT Control;Adjustable Soft-Start;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;I2C;Internal Compensation;OCP;OTP;OVP;Selectable (PSM or PWM);Stable with Ceramic Capacitor;UVP
Package Type WL-CSP2.69x3.92-54(BSC) WL-CSP2.69x3.92-54(BSC) WL-CSP2.69x3.92-54(BSC) WL-CSP2.69x3.92-54(BSC) WL-CSP2.69x3.92-54(BSC)
關鍵特性
  • Integrated FETs- 4-Phase Buck Converter
  • Input Supply Voltage Range: 3V to 5.5V
  • I2C Programmable Output Voltage: 0.4 to 2.05V (0.4 to 1.55V for 3-phase and 4-phase outputs)
  • Typical Switching Frequency:2MHz and 2.2MHz
  • Support 5A Output Current Capability Per Phase
  • Differential Remote Sense for Each Output with High Accuracy
  • Fast Transient Response
  • Power Saving Mode Enables Higher Light Load Efficiency
  • Output Dynamic Voltage Scaling (DVS) with Programmable Ramp Up/Down Slew Rate
  • Programmable Soft-Start Function
  • Programmable Startup/Shutdown Sequence
  • Interrupt Function and Fault Detection
  • Watchdog Reset Function Prevents System Hang
  • Input Undervoltage-Lockout (UVLO)
  • Cycle-by-Cycle Current Limit for Each Phase
  • Output Overvoltage/Undervoltage Protection
  • Over-Temperature Protection
  • WL-CSP-54B 2.69x3.92 (BSC) Package
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