MIC39150-1.8WU Microchip

MIC39150/39151/39152 1.5A, Low-Voltage Low-Dropout Regulator General Description Features The MIC39150, MIC39151, and MIC39152 are 1.5A LDO 1.5A minimum guaranteed output current voltage regulators that provide a low voltage, high current 500mV maximum dropout voltage over temperature output with a minimum of external components. Utilizing Ideal for 3.0V to 2.5V conversion Micrels proprietary Super eta PNP pass element, the Ideal for 2.5 to 1.8V or 1.65V conversion MIC39150/1/2 offers extremely low dropout (typically 1% initial accuracy 375mV at 1.5A) and low ground current (typically 17mA at 1.5A). Low ground current Current limiting and Thermal shutdown The MIC39150/1/2 are ideal for PC add-in cards that need to convert from 3.3V to 2.5V or 2.5V to 1.8V with a Reversed-battery and reversed lead insertion protection guaranteed maximum dropout voltage of 500mV over all Reversed-leakage protection operating conditions. The MIC39150/1/2 exhibit fast Fast transient response transient response for heavy switching applications and TTL/CMOS compatible enable pin (MIC39151/2 only) requires only 10F of output capacitance to maintain stability and achieve fast transient response. Error flag output (MIC39151 only) Adjustable output (MIC39152 only) The MIC39150/1/2 is fully protected with current limiting, thermal shutdown, reversed-battery protection/lead Power D-Pak package (TO-252) Adjustable only 2 insertion, and reverse-leakage protection. The MIC39151 Power D Pak package (TO-263) offers a TTL-logic compatible enable pin and an error flag that indicates undervoltage and overcurrent conditions. Applications Offered in fixed voltages of 2.5V, 1.8V and 1.65V, the 2 MIC39150/1 comes in the TO-220 and TO-263 (D Pak) Low-voltage digital ICs packages. The MIC39152 adjustable option allows LDO linear regulator for PC add-in cards programming the output voltage anywhere between 1.24V 2 High-efficiency linear power supplies and 15.5V and comes in 5-Pin, TO-263 (D Pak) and TO-252 (D-Pak) packages. SMPS post regulator Low-voltage microcontrollers For applications requiring input voltage greater than 16V or StrongARM processor supply automotive load dump protection, see the MIC29150/1/2/3 family. Typical Application** MIC39150 MIC39151 MIC39152 Adjustable Output Application (*See Minimum Load Current Section) **See Thermal Design Section Super eta PNP is a registered trademark of Micrel, Inc. StrongARM is a trademark of Advanced RSIC Machines, Ltd. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC39150/39151/39152 Ordering Information Part Number Junction Voltage Package Temp. Range Standard RoHS Compliant* MIC39150-1.65BT MIC39150-1.65WT 1.65V 40 to +125C 3-Pin TO-220 MIC39150-1.65BU MIC39150-1.65WU 1.65V 40 to +125C 3-Pin TO-263 MIC39150-1.8BT MIC39150-1.8WT 1.8V 40 to +125C 3-Pin TO-220 MIC39150-1.8BU MIC39150-1.8WU 1.8V 40 to +125C 3-Pin TO-263 MIC39150-2.5BT MIC39150-2.5WT 2.5V 40 to +125C 3-Pin TO-220 MIC39150-2.5BU MIC39150-2.5WU 2.5V 40 to +125C 3-Pin TO-263 MIC39151-1.65BT MIC39151-1.65WT 1.65V 40 to +125C 5-Pin TO-220 MIC39151-1.65BU MIC39151-1.65WU 1.65V 40 to +125C 5-Pin TO-263 MIC39151-1.8BT MIC39151-1.8WT 1.8V 40 to +125C 5-Pin TO-220 MIC39151-1.8BU MIC39151-1.8WU 1.8V 40 to +125C 5-Pin TO-263 MIC39151-2.5BT MIC39151-2.5WT 2.5V 40 to +125C 5-Pin TO-220 MIC39151-2.5BU MIC39151-2.5WU 2.5V 40 to +125C 5-Pin TO-263 MIC39152WU Adjustable 40 to +125C 5-Pin TO-263 MIC39152WD Adjustable 40 to +125C 5-Pin TO-252 Note: * RoHS compliant with high-melting solder exemption. M9999-102309-A October 2009 2