MCP1824/MCP1824S 300 mA, Low Voltage, Low Quiescent Current LDO Regulator Features Description 300 mA Output Current Capability The MCP1824/MCP1824S is a 300 mA Low Dropout (LDO) linear regulator that provides high current and Input Operating Voltage Range: 2.1V to 6.0V low output voltages. The MCP1824 comes in a fixed or Adjustable Output Voltage Range: 0.8V to 5.0V adjustable output voltage version, with an output (MCP1824 only) voltage range of 0.8V to 5.0V. The 300 mA output Standard Fixed Output Voltages: current capability, combined with the low output voltage - 0.8V, 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V capability, make the MCP1824 a good choice for new Other Fixed Output Voltage Options Available sub-1.8V output voltage LDO applications that have Upon Request high current demands. The MCP1824S is a 3-pin fixed voltage version. Low Dropout Voltage: 200 mV Typical at 300 mA Typical Output Voltage Tolerance: 0.4% The MCP1824/MCP1824S is stable using ceramic Stable with 1.0 F Ceramic Output Capacitor output capacitors that inherently provide lower output noise and reduce the size and cost of the entire Fast Response to Load Transients regulator solution. Only 1 F of output capacitance is Low Supply Current: 120 A (typical) needed to stabilize the LDO. Low Shutdown Supply Current: 0.1 A (typical) Using CMOS construction, the quiescent current (MCP1824 only) consumed by the MCP1824/MCP1824S is typically Fixed Delay on Power Good Output less than 120 A over the entire input voltage range, (MCP1824 only) making it attractive for portable computing applications Short Circuit Current Limiting and that demand high output current. The MCP1824 Overtemperature Protection versions have a Shutdown (SHDN) pin. When shut 5-Lead Plastic SOT-223, SOT-23 Package down, the quiescent current is reduced to less than Options (MCP1824) 0.1 A. 3-Lead Plastic SOT-223 Package Option On the MCP1824 fixed output versions, the scaled- (MCP1824S) down output voltage is internally monitored and a power good (PWRGD) output is provided when the Applications output is within 92% of regulation (typical). The PWRGD delay is internally fixed at 110 s (typical). High-Speed Driver Chipset Power The overtemperature and short circuit current-limiting Networking Backplane Cards provide additional protection for the LDO during system Notebook Computers fault conditions. Network Interface Cards Palmtop Computers 2.5V to 1.XV Regulators 2007 Microchip Technology Inc. DS22070A-page 1MCP1824/MCP1824S Package Types MCP1824 MCP1824S Fixed/Adjustable SOT-223-5 SOT-23-5 SOT-223-3 6 4 54 1 23 12 4 1 2 3 3 5 SOT-223 SOT-23 Pin SOT-223 1V Pin Fixed Adjustable Fixed Adjustable IN 2 GND (TAB) 1SHDN SHDN V V IN IN 3V OUT 2V V GND (TAB) GND (TAB) IN IN 4 GND (TAB) 3 GND (TAB) GND (TAB) SHDN SHDN 4V V PWRGD ADJ OUT OUT 5 PWRGD ADJ V V OUT OUT 6 GND (TAB) GND (TAB) DS22070A-page 2 2007 Microchip Technology Inc.