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AP72200 Synchronous DC-DC Buck-Boost Converter

Diodes' compact high-efficiency synchronous buck-boost converter for high-power density portable applications

Image of Diodes Incorporated's AP72200 Synchronous DC-DC Buck-Boost ConverterDiodes' AP72200 is a high current synchronous buck-boost converter providing high-efficiency, excellent transient response, and high output voltage accuracy. It is ideal for battery-powered applications like smartphones, tablets, and other handheld devices. The AP72200 uses an I2C, two-wire interface to dynamically program the output voltage along with other device configuration options. Its I2C interface supports bit rates up to 3.4 Mbit/s (high-speed mode). The AP72200 utilizes a low resistance, 4-switch H-bridge configuration to support buck and boost operations with at least 2 A output current. It also has outstanding line and load transient responses and a seamless transition between buck and boost modes. Its current-mode control scheme handles wide input/output voltage ratios and has three modes of operation: PFM (support LLHE), PWM (lower ripple), and Ultrasonic with no audible noise The AP72200 also features UVLO, OTP, and OCP to protect the chip. The AP72200 is available in the small 2.125 mm x 1.750 mm, 20-ball WLCSP package.

Features
  • Dynamically program AP72200 through I2C interface
  • Supports standard-mode, fast-mode, fast-mode plus, and high-speed mode controls output voltage setting, output voltage ramp up/down slew rates controls output OVP threshold, OCP threshold, and other device configurations
  • VIN 2.3 V to 5.5 V
  • Works across the full voltage range of a single-cell Li-ion battery
  • Output voltage range: 2.6 V to 5.14 V
  • PFM/PWM/USM operation
  • PFM mode for high light load efficiency through MODE pin or I2C programming, PWM mode for low output ripple through MODE pin or I2C programming, Ultrasonic mode for avoiding audible range through I2C programming
  • 2 A output current for VOUT = 3.4 V and VIN > 2.9 V and efficiency up to 97%
  • Longer battery life

AP72200 Buck-Boost Converter

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC REG BUCK BST ADJ 2A W-WLB211AP72200CT20-7IC REG BUCK BST ADJ 2A W-WLB21140770 - ImmediateView Details
Published: 2018-11-05