MIC5311 MICREL [Micrel Semiconductor], MIC5311 Datasheet
MIC5311
Available stocks
Related parts for MIC5311
MIC5311 Summary of contents
Page 1
... The MIC5311 is a µCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost. The MIC5311 is available in fixed output voltages in the 3mm x 3mm MLF-10 leadless package. Data sheets and support documentation can be found on Micrel’s web site at www ...
Page 2
... IN EN1 2 EN2 3 LOWQ 4 BYP 5 MIC5311-xxBML (3x3) Pin Function Supply Input. (V and V are internally tied together) IN1 IN2 Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off; Do not leave floating Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off; ...
Page 3
... J MLF-10 (θ ) ................................................. 63°C 2.2µ 100µ OUT OUT Min Typ -1.0 -2.0 0.02 0.35 0.7 60 120 28 0.1 = 10nF 65 BYP 35 = 10nF BYP 350 450 45 1.0 0.1 0.1 300 50 50 MIC5311 IN = 25°C, bold J Max Units +1.0 % +2.0 % 0.3 %/V 0.6 1 240 mV 45 µA 50 µA µ 700 mA µVrms 0 µA 1 µA 500 µ ...
Page 4
... 2.2µ 100µA; T OUT OUT Min Typ -2.0 -3.0 0.02 0.1 100 7 0.01 = 10nF 45 BYP 30 = 10nF BYP θ – Exceeding the maximum D(max) J(max MIC5311 = 25°C, bold J Max Units +2.0 % +3.0 % 0.3 %/V 0.6 0.5 % 200 mV 10 µA 12 µA 1.0 µ 150 mA M9999-021105 (408) 955-1690 ...
Page 5
... Ground Current vs. Temperature 35 300mA 50mA 30 25 100mA 150mA -40 - 100 120 5 MIC5311 Output Voltage vs. Temperature 2.7 2.65 2.6 2.55 2.5 2.45 2.4 2.35 100µA 2 100 125 Dropout vs. Temperature (LowQ Mode) 140 10mA 120 ...
Page 6
... OUT 6 Enable Off - Normal I = 200mA LOAD V = 2.6V OUT Time (10µs/div) Line Transient - Normal 5. 300mA LOAD V = 2.6V OUT C = 2.2µF OUT LowQ = 5.5V Time (40µs/div) Load Transient - Normal 300mA 100µ 2.6V OUT 2.2µF OUT Time (1ms/div) M9999-021105 (408) 955-1690 MIC5311 + 1V OUT ...
Page 7
... Micrel, Inc. Functional Characteristics (cont.) Normal to LowQ Transien t LowQ Normal Time (40µs/div) February 2005 10mA LOAD 7 LowQ to Normal Transien t TM LowQ Normal I = 10mA LOAD Time (40µs/div) M9999-021105 (408) 955-1690 MIC5311 ...
Page 8
... Micrel, Inc. Functional Diagram VIN EN1 LOWQ EN2 BYP February 2005 LDO1 LowQ™ Reference GND MIC5311 Block Diagram 8 VOUT1 VOUT2 LDO2 MIC5311 M9999-021105 (408) 955-1690 ...
Page 9
... IC is recommended. Larger load currents may require larger capacitor values. Bypass Capacitor The internal reference voltage of the MIC5311 can be bypassed with a capacitor to ground to reduce output noise and increase input ripple rejection (PSRR). A quick-start feature allows for quick turn-on of the output voltage. The recommended nominal bypass capacitor is 0.01µ ...
Page 10
... P D LDO2 For a full discussion of heat sinking and thermal effects on voltage regulators, refer to the “Regulator Thermals” section of Micrel’s Designing with Low-Dropout Voltage Regulators handbook. This information can be found on Micrel's website at: http://www.micrel.com/_PDF/other/LDOBk_ds.pdf 10 MIC5311 x θ – A(max) J(max 125° ...
Page 11
... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. February 2005 10-Pin 3x3 MLF (MLF) © 2004 Micrel, Incorporated. 11 MIC5311 M9999-021105 (408) 955-1690 ...