Microchip | MIC23030-GYMT-TR

The MIC23030-GYMT TR is a high efficiency 8 MHz 400 mA synchronous buck regulator with HyperLight Load™ mode. HyperLight Load™ provides very high efficiency at light loads and ultra-fast transient response which is perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The tiny 1.6 mm x 1.6 mm Thin MLF ® package saves precious board space and requires only three external components.

The MIC23030-GYMT TR is designed for use with a very small inductor, down to 0.47 µH, and an output capacitor as small as 2.2 µF that enables a sub-1 mm height. The MIC23030 has a very low quiescent current of 21 µA and achieves as high as 83% efficiency at 1 mA. At higher loads, the MIC23030 provides a constant switching frequency around 8 MHz while achieving peak efficiencies up to 91%. The MIC23030 is available in a 6-pin 1.6 mm x 1.6 mm Thin MLF ® package with an operating junction temperature range from –40 °C to +125 °C.

Key Features :

• Input voltage: 2.7 V to 5.5 V
• 400mA output current
• Up to 91% efficiency and 83% at 1 mA
• 21 µA typical quiescent current
• 8 MHz PWM operation in continuous mode
• Ultra fast transient response
• Low voltage output ripple
• − 14 mVpp ripple in HyperLight Load ™ mode
• − 5 mV output voltage ripple in full PWM mode
• Fully integrated MOSFET switches
• 0.01 µA shutdown current
• Thermal shutdown and current limit protection
• Fixed and adjustable output voltage options available
• 6-pin 1.6 mm x 1.6 mm Thin MLF ®
• –40 °C to +125 °C junction temperature range

Applications :

• Mobile handsets
• Portable media/MP3 players
• Portable navigation devices (GPS)
• WiFi/WiMax/WiBro modules
• Digital Cameras
• Wireless LAN cards
• USB powered devices
• ortable applications