MIC29510/29512 5A Fast-Response LDO Regulator General Description Features The MIC29510 and MIC29512 are high-current, high- Fast transient response accuracy, low-dropout voltage regulators featuring fast 5A current capability transient recovery from input voltage surges and output load current changes. These regulators use a PNP pass 700mV dropout voltage at full load element that features Micrels proprietary Super eta Low ground current PNP process. Accurate 1% guaranteed tolerance The MIC29510/2 is available in two versions: the three pin Zero current shutdown mode (MIC29512) fixed output MIC29510 and the five pin adjustable output Fixed voltage and adjustable versions voltage MIC29512. All versions are fully protected against overcurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and Applications negative transient voltage spikes. Pentium, Pentium Plus and Power PC A TTL compatible enable (EN) control pin supports processor supplies external on/off control. If on/off control is not required, the device may be continuously enabled by connecting EN to High-efficiency green computer systems IN. High-efficiency linear power supplies The MIC29510/2 is available in the standard three and five High-efficiency switching supply post regulator pin TO-220 package with an operating junction Battery-powered equipment temperature range of 0C to +125C. For applications requiring even lower dropout voltage, input voltage greater than 16V, or an error flag, see the MIC29500/29501/29502/29503. Typical Application Fixed Regulator Configuration Adjustable Regulator Configuration Super eta PNP is a trademarks 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. MIC29510/29512 Ordering Information Part Number Junction Temp. Range Voltage Current Package Standard RoHS Compliant* MIC29510-3.3BT MIC29510-3.3WT 0C to +125C 3.3V 5A TO-220-3 MIC29510-5.0BT MIC29510-5.0WT 0C to +125C 5.0V 5A TO-220-3 MIC29512BT MIC29512WT 0C to +125C Adj. 5A TO-220-5 * RoHS compliant with high-melting solder exemption. Pin Configuration 1 2 3 123 4 5 MIC29510BT/WT MIC29512BT/WT On all devices, the Tab is grounded Pin Description 3-Pin TO-220 (MIC29510) Pin Pin Number Name Pin Function 1 IN Unregulated Input: +16V maximum supply. 2 GND Ground: Internally connected to tab (ground). 3 OUT Regulated Output. 5-Pin TO-220 (MIC29512) Pin Pin Number Name Pin Function 1 EN Enable (Input): Logic-level ON/OFF control. 2 IN Unregulated Input: +16V maximum supply. 3 GND Ground: Internally connected to tab (ground). 4 OUT Regulated Output. 5 ADJ Output Voltage Adjust: 1.240V feedback from external resistive divider. M9999-051706 May 2006 2 (408) 955-1690