MIC5219-3.3BMM TR Micrel Inc, MIC5219-3.3BMM TR Datasheet
MIC5219-3.3BMM TR
Specifications of MIC5219-3.3BMM TR
MIC5219-3.3BMMTR
Related parts for MIC5219-3.3BMM TR
MIC5219-3.3BMM TR Summary of contents
Page 1
... It features a 500mA peak output rating. Continuous output current is limited only by package and layout. The MIC5219 can be enabled or shut down by a CMOS or TTL compatible signal. When disabled, power consumption drops nearly to zero. Dropout ground current is minimized to help prolong battery life ...
Page 2
... MIC5219-x.xBMM / MM8 / MSOP-8 Fixed Voltages (Top View GND GND 2 7 OUT GND GND 4 5 MIC5219YMM / MIC5219BMM ® MM8 MSOP-8 Adjustable Voltage (Top View) June 2009 Marking Standard Pb-Free* Volts — — 2.5V — — 2.85V — — 3.0V — — ...
Page 3
Pin Description Pin No. Pin No. Pin No. MLF-6 MSOP-8 SOT-23-5 TMLF 5– (fixed) 4 (fixed) 5(NC) 4 (adj.) 4 (adj.) EP — — June 2009 Pin ...
Page 4
Absolute Maximum Ratings Supply Input Voltage (V ) ..............................–20V to +20V IN Power Dissipation (P ) ............................. Internally Limited D Junction Temperature (T ) ........................ –40°C to +125°C J Storage Temperature (T ) ........................ –65°C to +150°C S Lead Temperature ...
Page 5
Notes: 1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum ...
Page 6
Typical Characteristics Power Supply Rejection Ratio OUT -20 -40 -60 - 100µA OUT C = 1µF OUT -100 1k 10k 100k 1M 10M 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 ...
Page 7
Ground Current vs. Output Current 100 200 300 400 500 OUTPUT CURRENT (mA) June 2009 Ground Current vs. Supply Voltage =500mA ...
Page 8
... Block Diagrams C (optional June 2009 Bandgap Ref Current Limit Thermal Shutdown MIC5219-x.xBM5/M/YMT GND Ultra-Low-Noise Fixed Regulator IN Bandgap Ref Current Limit Thermal Shutdown MIC5219BM5/MM/YMT GND Ultra-Low-Noise Adjustable Regulator 8 OUT OUT (optional) M0371-061809 ...
Page 9
... The capacitor can be reduced to 0.47µF for current below 10mA, or 0.33µF for currents below 1mA. No-Load Stability The MIC5219 will remain stable and in regulation with no load (other than the internal voltage divider) unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications ...
Page 10
... PC board reduces the thermal resistance of the device. This improved thermal resistance improves power dissipation and allows for a larger safe operating region. Figures 3 and 4 show safe operating regions for the MIC5219-x. June 2009 xBMM, the power MSOP package part. These graphs show three typical operating regions at different temperatures ...
Page 11
... DUTY CYCLE (%) a. 25°C Ambient Figure 2. MIC5219-x.xBM5 (SOT-23-5) on 1-inch 10 100mA 8 200mA 6 300mA 4 400mA 2 500mA 100 DUTY CYCLE (%) a. 25°C Ambient Figure 3. MIC5219-x.xBMM (MSOP-8) on Minimum Recommended Footprint 10 200mA 8 300mA 6 400mA 4 500mA 100 DUTY CYCLE (%) a. 25°C Ambient Figure 4. MIC5219-x.xBMM (MSOP-8) on 1-inch June 2009 10 ...
Page 12
... BYP and GND to reduce output noise. Note that the minimum value of C capacitor is used. Adjustable Regulator Circuits Figure 7. Low-Noise Adjustable Voltage Regulator Figure 7 shows the basic circuit for the MIC5219 adjustable regulator. The output voltage is configured by selecting values for R1 and R2 using the following formula: V OUT Although ADJ is a high-impedance input, for best performance, R2 should not exceed 470kΩ ...
Page 13
Package Information June 2009 8-Pin MSOP (MM) SOT-23-5 (M5) 13 M0371-061809 ...
Page 14
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 tel The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its ...