MIC2131-1YTSE

MIC2130/1 High Voltage Synchronous Buck Control IC with Low EMI Option General Description Features The MIC2130/1 is a high voltage input PWM synchronous 8V to 40V input voltage range buck controller IC. It is a voltage mode controller with a Adjustable output voltages down to 0.7V fast hysteretic control loop (FHyCL) employed during fast LOW EMI option MIC2131 line and load transients. The internal gate drivers are Fixed 150kHz and 400kHz frequency options designed to drive high current MOSFETs. Excellent line and load regulation due to fast hysteretic The MIC2130/1 can produce output voltages down to 0.7V control loop during transients with input voltage from 8V to 40V. The MIC2130 family of Adaptive gate drive allows efficiencies over 95% control ICs implements fixed frequency PWM control. The Programmable current limit with no sense resistor active anti-shoot through drive scheme means a wide Senses low-side MOSFET current range of external MOSFETs may be used while Internal drivers allow 15A output current maintaining optimum efficiency. Power Good output allow simple sequencing The MIC2131 is the fully functional version of the family Programmable soft-start pin and implements a new feature to minimize EMI. This function is critical for systems that need to be compliant 100% increase in current limit (MIC2131) with EMI standards throughout the world. Output over-voltage protection The MIC2130/1 is available in small size 16-pin 4mm x Programmable Input UVLO 4mm MLF package, as well as 16-pin e-TSSOP at a 16-pin e-TSSOP and 16-pin 4mm x 4mm MLF junction temperature range of 40C to +125C. Junction temperature range of 40 C to +125 C Data sheets and support documentation can be found on Micrels web site at: www.micrel.com. Applications Industrial/Medical DC/DC point of use power Printer head drivers Automotive Systems Telecom systems LCD/ Plasma TV Gaming Machines Typical Application Efficiency V = 3.3V OUT +25C 98 8V 12V 96 94 10V 20V 92 90 88 30V 24V 86 84 40V 82 80 45 6 7 OUTPUT CURRENT (A) MIC2130/1 High Input Voltage Converter MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC2130/1 Ordering Information Part Number Frequency Output Low EMI Junction Temp. Package Lead Finish Voltage Range MIC2130-1YML 150kHz Adj. No 40 to +125C 16-Pin 4x4 MLF Pb-Free MIC2130-4YML 400kHz Adj. No 40 to +125C 16-Pin 4x4 MLF Pb-Free MIC2130-1YTSE 150kHz Adj. No 40 to +125C 16-Pin e-TSSOP Pb-Free MIC2130-4YTSE 400kHz Adj. No 40 to +125C 16-Pin e-TSSOP Pb-Free MIC2131-1YML 150kHz Adj. Yes 40 to +125C 16-Pin 4x4 MLF Pb-Free MIC2131-4YML 400kHz Adj. Yes 40 to +125C 16-Pin 4x4 MLF Pb-Free MIC2131-1YTSE 150kHz Adj. Yes 40 to +125C 16-Pin e-TSSOP Pb-Free MIC2131-4YTSE 400kHz Adj. Yes 40 to +125C 16-Pin e-TSSOP Pb-Free Pin Configuration AVDD 1 16 CS PGOOD 2 15 BST HCL/AGND2 3 14 HSD HCL/AGND2 HSD SS 4 13 SW SS SW FB 5 12 PGND FB PGND COMP 6 11 LSD COMP LSD AGND1 7 10 VDD EN/UVLO 8 9 VIN 16-Pin e-TSSOP (TS) 16-Pin 4mm x 4mm MLF (ML) M9999-042108-C April 2008 2 AGND1 PGOOD EN/UVLO AVDD VIN CS VDD BST