MIC5333-PMYMT-TR Microchip

MIC5333 Micro-Power High Performance Dual 300mA ULDO with Dual POR General Description Features The MIC5333 is a tiny dual low quiescent current LDO 2.3V to 5.5V input voltage range ideal for applications that are power sensitive. The 300mA output current per LDO MIC5333 integrates two high performance, 300mA LDOs, Very low quiescent current: 25A per LDO and a POR generator for each LDO into a 2.5mm x 2.5mm POR output with programmable delay for each LDO Thin MLF package, which occupies less PC board area than a single SOT-23 package. High PSRR >65dB on each LDO The MIC5333 is designed to reject input noise and provide Stable with 1F ceramic output capacitors low output noise with fast transient response to respond to Tiny 10-pin 2.5mm x 2.5mm Thin MLF package any load change quickly even though it is a low quiescent Ultra-low dropout voltage 120mV @ 300mA current part. This combination of PSRR, low noise and Low output voltage noise 50Vrms transient response along with low power consumption Thermal shutdown protection makes for a very high performance, yet general purpose product. Current limit protection The MIC5333 is a Cap design, operating with very small ceramic output capacitors, which reduces required board Applications space and component cost; and it is available in fixed output voltages in the tiny 10-pin 2.5mm x 2.5mm Thin Camera phones MLF leadless package. Mobile phones Data sheets and support documentation can be found on PDAs Micrels web site at: www.micrel.com. GPS receivers Portable devices ___________________________________________________________________________________________________________ Typical Application 100k 100k MIC5333-xxYMT VOUT1 VIN I/O CORE EN1 VOUT2 /RST EN2 POR1 I/O VBAT POR2 /RST CSET1 CORE CSET2 Camera DSP 1F 1F 1F GND Camera DSP Power Supply Circuit ULDO is a trademark of Micrel, Inc. 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. MIC5333 Ordering Information Manufacturing Junction Part Number Marking Voltage Package Part Number Temperature Range MIC5333-2.5/1.2YMT MIC5333-J4YMT XJ4 2.5V/1.2V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF MIC5333-2.8/2.8YMT MIC5333-MMYMT XMM 2.8V/2.8V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF MIC5333-2.8/2.85YMT MIC5333-MNYMT XMN 2.8V/2.85V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF MIC5333-2.85/2.85YMT MIC5333-NNYMT XNN 2.85V/2.85V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF MIC5333-3.0/2.8YMT MIC5333-PMYMT XPM 3.0V/2.8V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF MIC5333-3.0/2.85YMT MIC5333-PNYMT XPN 3.0V/2.85V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF MIC5333-3.0/3.0YMT MIC5333-PPYMT XPP 3.0V/3.0V 40 to +125C 10-Pin 2.5 x 2.5 Thin MLF Note: Other voltage options available. Contact Micrel for details. Pin Configuration VIN 1 10 VOUT1 GND 2 9 VOUT2 POR2 3 8 CSET2 POR1 4 7 CSET1 EN2 5 6 EN1 10-Pin 2.5mm x 2.5mm Thin MLF (MT) (Top View) Pin Description Pin Number Pin Name Pin Function 1 VIN Supply Input. 2 GND Ground. 3 POR2 Power-On Reset Output (Regulator 2): Open-drain output. Active low indicates an output under-voltage condition on regulator 2 when the device is enabled. 4 POR1 Power-On Reset Output (Regulator 1): Open-drain output. Active low indicates an output under-voltage condition on regulator 1 when the device is enabled. 5 EN2 Enable Input (Regulator 2): Active High Input. Logic High = On; Logic Low = Off. Do not leave floating. 6 EN1 Enable Input (Regulator 1): Active High Input. Logic High = On; Logic Low = Off. Do not leave floating. 7 CSET1 Delay Set Input (Regulator 1): Connect external capacitor to GND to set the internal delay for the POR1 output. When left open, there is no delay. This pin cannot be grounded. 8 CSET2 Delay Set Input (Regulator 2): Connect external capacitor to GND to set the internal delay for the POR2 output. When left open, there is no delay. This pin cannot be grounded. 9 VOUT2 Regulator Output LDO2. 10 VOUT1 Regulator Output LDO1. M9999-021408-A February 2008 2