MIC23150-SYMT TR Microchip

MIC23150 4MHz, PWM, 2A Buck Regulator with HyperLight Load General Description The MIC23150 is a high-efficiency 4MHz 2A synchronous HyperLight Load buck regulator with HyperLight Load mode. HyperLight Load provides very high efficiency at light loads and ultra- Features fast transient response which is perfectly suited for supplying processor core voltages. An additional benefit of Input voltage: 2.7V to 5.5V this proprietary architecture is very low output ripple 2A output current voltage throughout the entire load range with the use of Up to 93% peak efficiency small output capacitors. The tiny 2mm 2mm Thin DFN 87% typical efficiency at 1mA (TDFN) package saves precious board space and requires only three external components. 23A typical quiescent current 4MHz PWM operation in continuous mode The MIC23150 is designed for use with a very small inductor, down to 0.47H, and an output capacitor as small Ultra-fast transient response as 2.2 F that enables a total solution size, less than 1mm Low ripple output voltage height. 14mVpp ripple in HyperLight Load mode The MIC23150 has a very low quiescent current of 23A 5mV output voltage ripple in full PWM mode and achieves a peak efficiency of 93% in continuous 0.01A shutdown current conduction mode. In discontinuous conduction mode, the Thermal-shutdown and current-limit protection MIC23150 can achieve 87% efficiency at 1mA. Output voltage as low as 0.95V The MIC23150 is available in 8-pin 2mm 2mm Thin DFN 8-pin 2mm 2mm Thin DFN (TDFN) package package with an operating junction temperature range from 40C to +125C. Applications Datasheets and support documentation are available on Mobile handsets Micrels web site at: www.micrel.com. Portable media/MP3 players Portable navigation devices (GPS) WiFi/WiMax/WiBro modules Solid State Drives/Memory Wireless LAN cards Typical Application HyperLight Load is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC23150 Ordering Information Marking Nominal Output Junction Lead (3) Part Number Package (1) (2) Code Voltage Temperature Range Finish MIC23150-CYMT QKC 1.0V 40 C to +125 C 8-Pin 2mm 2mm TDFN Pb-Free MIC23150-4YMT QK4 1.2V 40 C to +125 C 8-Pin 2mm 2mm TDFN Pb-Free MIC23150-55YMT QKZ 1.35V 40 C to +125 C 8-Pin 2mm 2mm TDFN Pb-Free MIC23150-GYMT QKG 1.8V 8-Pin 2mm 2mm TDFN Pb-Free 40 C to +125 C MIC23150-SYMT QKS 3.3V 8-Pin 2mm 2mm TDFN Pb-Free 40 C to +125 C Notes: 1. = Pin 1 identifier. 2. Other voltages are available. Contact Micrel for details. 3. GREEN, RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen-Free. Pin Configuration 8-Pin 2mm 2mm Thin DFN (MM) (Top View) Pin Description Pin Number Pin Name Pin Function 1, 2 SW Switch (Output): Internal power MOSFET output switches. Enable (Input): Logic high enables operation of the regulator. Logic low will shut down the device. Do 3 EN not leave floating. 4 SNS Sense: Connect to V as close to output capacitor as possible to sense output voltage. OUT Analog Ground: Connect to central ground point where all high current paths meet (C , C , and IN OUT 5 AGND PGND) for best operation. 6, 7 VIN Input Voltage: Connect a capacitor-to-ground to decouple the noise. 8 PGND Power Ground. February 5, 2015 Revision 2.1 2