HL7501

HL7501 is a synchronous buck converter optimized to supply different sub systems of portable applications. Its input voltage range is 2.5V to 5.5V. Its output voltage range is 0.6V to 1.42V programmed through an I2C interface. Its output voltage can be adjusted on the fly to provide Dynamic Voltage Scaling (DVS) function with a programmable slew rate. HL7501 can deliver up to 6A, while maintaining over 80% efficiency at load currents as low as 10mA. Maximum load current of up to 7.5A can be supported for 50ms. It operates at fixed frequency of 2.4MHz, which reduces the value of the external components. A wide range of output capacitors can be used to optimize VOUT stability during load transients. Inductors from 0.33uH to 1.0uH may be used without affecting loop stability. At moderate to light loads, Pulse Frequency Modulation (PFM) is used to maintain conversion efficiency with a typical non-switching quiescent current of 60µA. Even with such a low quiescent current, HL7501 maintains excellent load and line transient responses. At higher loads, the system automatically switches to fixed-frequency Pulse Width Modulation (PWM) operation at 2.4MHz for minimum VOUT ripple and optimal load transient response. In Shutdown Mode, the supply current drops below 1µA, reducing power consumption. PFM Mode can be disabled if needed through I2C registers. HL7501 is available in a 20-bump, 0.4mm pitch, 2.0mmx1.6mm Wafer-Level Chip-Scale package (CSP).

HL7501 is a synchronous buck converter developed specifically for the different core power system requirements of portable product applications. The input voltage range of HL7501 is from 2.5V to 5.5V, and its output voltage range is from 0.6V to 1.42V, programmed via the I2C interface. Its output voltage can be dynamically adjusted, providing dynamic voltage scaling with programmable conversion rates. HL7501 can deliver up to 6A of current while maintaining over 80% efficiency at load currents as low as 10mA. The maximum load current can support up to 7.5A for a duration of 50ms. It can operate at a fixed frequency of up to 2.4MHz, thereby reducing the values of external inductors and capacitors used. Additional output capacitance can be added without affecting VOUT stability, improving load transient response. At the same time, inductors ranging from 0.33µH to 1.0µH can be used without compromising loop stability. In moderate and light load conditions, HL7501 employs pulse frequency modulation (PFM) to maintain conversion efficiency, with a typical non-switching quiescent current of 60µA. Even with such a low quiescent current, HL7501 maintains excellent load and line transient response. Under heavy load conditions, the system automatically switches to 2.4MHz fixed frequency pulse width modulation (PWM) operation to achieve minimal VOUT ripple and optimal load transient response. In shutdown mode, the power supply current drops to below 1µA, thereby reducing power consumption. If needed, PFM mode can be disabled via the I2C register.

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- Commodity name: HL7501
- 产品名称: I2C Programmable 6A DVS Buck Converter
- 产品简介: HL7501 is a synchronous buck converter optimized to supply different sub systems of portable applications. Its input voltage range is 2.5V to 5.5V. Its output voltage range is 0.6V to 1.42V programmed through an I2C interface. Its output voltage can be adjusted on the fly to provide Dynamic Voltage Scaling (DVS) function with a programmable slew rate. HL7501 can deliver up to 6A, while maintaining over 80% efficiency at load currents as low as 10mA. Maximum load current of up to 7.5A can be supported for 50ms. It operates at fixed frequency of 2.4MHz, which reduces the value of the external components. A wide range of output capacitors can be used to optimize VOUT stability during load transients. Inductors from 0.33uH to 1.0uH may be used without affecting loop stability. At moderate to light loads, Pulse Frequency Modulation (PFM) is used to maintain conversion efficiency with a typical non-switching quiescent current of 60µA. Even with such a low quiescent current, HL7501 maintains excellent load and line transient responses. At higher loads, the system automatically switches to fixed-frequency Pulse Width Modulation (PWM) operation at 2.4MHz for minimum VOUT ripple and optimal load transient response. In Shutdown Mode, the supply current drops below 1µA, reducing power consumption. PFM Mode can be disabled if needed through I2C registers. HL7501 is available in a 20-bump, 0.4mm pitch, 2.0mmx1.6mm Wafer-Level Chip-Scale package (CSP).
HL7501 is a synchronous buck converter developed specifically for the different core power system requirements of portable product applications. The input voltage range of HL7501 is from 2.5V to 5.5V, and its output voltage range is from 0.6V to 1.42V, programmed via the I2C interface. Its output voltage can be dynamically adjusted, providing dynamic voltage scaling with programmable conversion rates. HL7501 can deliver up to 6A of current while maintaining over 80% efficiency at load currents as low as 10mA. The maximum load current can support up to 7.5A for a duration of 50ms. It can operate at a fixed frequency of up to 2.4MHz, thereby reducing the values of external inductors and capacitors used. Additional output capacitance can be added without affecting VOUT stability, improving load transient response. At the same time, inductors ranging from 0.33µH to 1.0µH can be used without compromising loop stability. In moderate and light load conditions, HL7501 employs pulse frequency modulation (PFM) to maintain conversion efficiency, with a typical non-switching quiescent current of 60µA. Even with such a low quiescent current, HL7501 maintains excellent load and line transient response. Under heavy load conditions, the system automatically switches to 2.4MHz fixed frequency pulse width modulation (PWM) operation to achieve minimal VOUT ripple and optimal load transient response. In shutdown mode, the power supply current drops to below 1µA, thereby reducing power consumption. If needed, PFM mode can be disabled via the I2C register.
- Input Voltage Range: 2.5V~5.5V
- Programmable Output Voltage
  - 0.600V to 1.420V in 10 mV, 12.5mV, 12.826mV or 12.967mV steps
- Maximum Output Current:
  - 6A Continuous, 7.5A Peak
- 2.4 MHz PWM with Seamless PWM/PFM Switching for Light-Load Efficiency
- Dynamic Voltage Scaling (DVS) with Programmable Voltage Slew Rate
- Excellent Load and Line Transient
- Quiescent Current in PFM Tristate: 60µA
- I²C Interface with SM, FM, FM+ and HS Modes
- Comprehensive Protection
  - Input Under-Voltage Lockout (UVLO)
  - Input Over-Voltage Protection (OVP)
  - Over Current and Short-Circuit Protection
  - Thermal Shutdown
- 2.0mm x 1.6mm 20-Bump Chip-Scale Package
- Subtitle
  - Subtitle
- Application Processors
- Graphics Processors
- Memory, Hard Disk Drive and SSD
- Smart Phones
- Tablets
- Handheld Devices

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