12A I²C Programmable DVS Buck Converter with High Efficiency
HL8112
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HL8112 is a compact, high efficiency synchronous hysteretic buck converter capable of delivering up to 12A continuous output current and 15A peak output current from a wide input voltage range of 2.85V to 18V.
The HL8112 features a highly accurate internal voltage reference. The default reference voltage can be selected via the A0/REF pin, while the output voltage is set by an external resistor divider from VOUT to FB. The VOUT reference voltage is programmable through the I²C interface from 0.5V to 1.108V in 4mV steps, and the device supports Dynamic Voltage Scaling (DVS) by adjusting the reference voltage and slew rate.
The soft start time is programmable with an external capacitor on the SS pin. The HL8112 integrates multiple protection features, including output overvoltage protection, overcurrent protection, short circuit protection, and thermal shutdown. Two integrated 8 bit ADCs are provided for monitoring output voltage and output current. The device operates over an ambient temperature range of –40°C to +125°C.
The HL8112 is available in a 3mm × 4mm, 14 pin QFN package.
Product Brief Datasheet
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- 商品名: HL8112
- 产品名称: 12A I²C Programmable DVS Buck Converter with High Efficiency
- 产品简介: HL8112 is a compact, high efficiency synchronous hysteretic buck converter capable of delivering up to 12A continuous output current and 15A peak output current from a wide input voltage range of 2.85V to 18V. The HL8112 features a highly accurate internal voltage reference. The default reference voltage can be selected via the A0/REF pin, while the output voltage is set by an external resistor divider from VOUT to FB. The VOUT reference voltage is programmable through the I²C interface from 0.5V to 1.108V in 4mV steps, and the device supports Dynamic Voltage Scaling (DVS) by adjusting the reference voltage and slew rate. The soft start time is programmable with an external capacitor on the SS pin. The HL8112 integrates multiple protection features, including output overvoltage protection, overcurrent protection, short circuit protection, and thermal shutdown. Two integrated 8 bit ADCs are provided for monitoring output voltage and output current. The device operates over an ambient temperature range of –40°C to +125°C. The HL8112 is available in a 3mm × 4mm, 14 pin QFN package.
- Wide Input Voltage Range: 2.85V to 18V
- Output Voltage Range: 0.5V to 5.5V (adjustable via FB)
- High Output Current: 12A continuous / 15A peak
- I²C‑Programmable VOUT Reference: 0.5V to 1.108V in 4mV steps
- Reference Voltage Accuracy: ±0.5%
- Selectable Default Reference: via A0/REF pin (0.72V default)
- I²C‑Programmable Switching Frequency: 500kHz to 1.25MHz
- Selectable Operating Modes: auto PFM or forced PWM
- I²C‑Programmable Current Limit: flexible for different load conditions
- Integrated 8‑bit ADCs: for output voltage and current monitoring
- Four Selectable I²C Slave Addresses: set by resistor divider on A0/REF
- Open‑Drain Power Good (PG) Indicator: with programmable deglitch time
- Adjustable Soft‑Start: via external capacitor
- Excellent Load and Line Transient Response
- Comprehensive Protection:
- Input Under‑Voltage Lockout (UVLO)
- Output Over‑Voltage Protection (OVP) with auto‑retry or latch‑off options
- Cycle‑by‑Cycle Overcurrent Protection and Short‑Circuit Protection with hiccup or latch‑off modes
- Thermal Shutdown Protection (160°C shutdown, 20°C hysteresis)
- Package: QFN‑14 (3mm × 4mm)
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