MIC3385-1.5YHL MICREL [Micrel Semiconductor], MIC3385-1.5YHL Datasheet
MIC3385-1.5YHL
Related parts for MIC3385-1.5YHL
MIC3385-1.5YHL Summary of contents
Page 1
... MOSFETs that can supply up to 600mA output current in PWM mode. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions. The MIC3385 is available in the 14-pin 3mm x 3.5mm ® MLF package with a junction operating range from –40°C to +125° ...
Page 2
... Micrel, Inc. Ordering Information Part Number Voltage MIC3385YHL Adj. MIC3385-1.5YHL 1.5V Notes: 1. MLF® GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. 2. Other voltage options available. Please contact Micrel for details. Pin Configuration Pin Description Pin Number ...
Page 3
... V EN LOWQ ) ........................ –40°C to +125°C J ® 3x3.5 MLF -14 (θ )...........................................55°C/W JA Min. Typ. 2.7 2.45 2.55 100 690 16 0.01 0.99 1 0. 100mA 0.13 0.2 0.1 100 0.4 0.4 7.2 8 0.5 0.85 0.1 0.5 0.85 0.1 110 MIC3385 IN < +125°C. J Max. Units 5 900 µA 29 µA 5 µA 1. Ω 8.8 MHz 1 µA 1 µA mV M9999-051310-B ...
Page 4
... For outputs below 2.7V, the dropout voltage is the input-to-output voltage differential with a minimum input voltage of 2.7V. May 2010 (4) (Continued) = 10µ 25°C, unless noted. Bold values indicate –40°C< T OUT A = 10μF, 10Hz to 100kHz OUT = 0V (LDO Mode) OUT 4 MIC3385 < +125°C. J Min. Typ. Max. Units 75 µVrms 60 120 mA 160 ° ...
Page 5
... V =3. =4. 100 200 300 400 500 600 OUTPUT CURRENT (mA) Frequency vs. Input Voltage 9.0 8.5 8.0 7.5 7.0 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 INPUT VOLTAGE (V) 5 MIC3385 1.5V Efficiency OUT 100 V =3. =3. =4. 100 200 300 400 500 600 OUTPUT CURRENT (mA) Load Regulation 1 ...
Page 6
... Micrel, Inc. Typical Characteristics ― LDO Mode May 2010 6 MIC3385 M9999-051310-B ...
Page 7
... Micrel, Inc. Typical Characteristics ― LDO Mode (cont.) May 2010 7 MIC3385 M9999-051310-B ...
Page 8
... Time (100µs/div ) Enable Transient PWM Mode Time (40µs/div ) May 2010 C = 10µF OUT C = 10µF OUT 8 Load Transient LDO Mode C = 10µF OUT Time (100µs/div ) Enable Transient LDO Mode C = 10µF OUT Time (40µs/div ) M9999-051310-B MIC3385 ...
Page 9
... Micrel, Inc. Functional Diagram May 2010 MIC3385 Block Diagram 9 MIC3385 M9999-051310-B ...
Page 10
... GND Combines PGND and SGND Power ground (PGND) is the ground path for the high current PWM mode. Signal ground (SGND) is the ground path for the biasing and control circuitry. 10 MIC3385 ) can be calculated as FF M9999-051310-B ...
Page 11
... ESL. Please refer to layout recommendations for proper layout of the input capacitor. Output Capacitor The MIC3385 is optimized for a 10µF output capacitor. A larger value can be used to improve transient response The MIC3385 utilizes type III internal compensation and utilizes an internal high frequency zero to compensate for the double pole roll off of the LC filter ...
Page 12
... Micrel, Inc. Layout Recommendations Note: The above figures demonstrate the recommended layout for the MIC3385 adjustable option. May 2010 Top Layer Bottom Layer 12 MIC3385 M9999-051310-B ...
Page 13
... May 2010 U1 Vin MIC3385YHL 2 VIN C1 12 AVin 10µF/6. LOWQ R3 Vin 14 BIAS C2 0.1µF/6.3V MIC3385 Adjustable Output Schematic Manufacturer (1) TDK 10µF Ceramic Capacitor X5R, 6.3V (2) Taiyo Yuden (3) Murata 10µF Ceramic Capacitor X7R, 6.3V (1) TDK 1µF Ceramic Capacitor X5R, 6.3V (4) AVX (5) Vishay 1µF Ceramic Capacitor X7R, 6.3V (1) TDK ...
Page 14
... 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 May 2010 14-Pin 3mm x 3.5mm MLF indemnify Micrel for any damages resulting from such use or sale. © 2006 Micrel, Incorporated. 14 ® (HL) http://www.micrel.com MIC3385 nt M9999-051310-B ...