MIC2164 MICREL [Micrel Semiconductor], MIC2164 Datasheet
MIC2164
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MIC2164 Summary of contents
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... General Description The Micrel MIC2164/-2/-3 are synchronous buck controllers featuring adaptive on-time control. The MIC2164/-2/-3 are the first products in the new TM Hyper Speed Control family of buck controllers introduced by Micrel. The MIC2164/-2/-3 controllers operate over an input supply range 28V, and are independent of the IC supply voltage ...
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... IN Input Voltage (input): Power to the internal reference and control sections of the MIC2164/-2/-3. The IN operating voltage range is from 3V to 5.5V. A 1µF and 0.1µF ceramic capacitors from IN to GND are recommended for clean operation. ...
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... HSD ) .........................-40°C to +125°C J MSOP (θ ) ............................................130.5°C 70°C)..............421mW A ≤ +125°C. J Min Typ 3.0 3.0 1.4 0.8 2.7 2 130 103 divided by 6 value (1/6). MIC2164/-2/-3 Max Units 500 mV 162 M9999-090409-B ...
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... En Logic Level High En Pull-up Current Note: 8. Measured in test mode. 9. Measured at DH. The maximum duty cycle is limited by the fixed mandatory off time Toff of typical 363ns. September 2009 Condition MIC2164 MIC2164-2 MIC2164-3 MIC2164 MIC2164-2 MIC2164-3 Measured 10mA SINK I = 10mA SOURCE V = 28V 5.5V,V = 33.5V ...
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... OUTPUT CURRENT (A) 5 MIC2164-2 12V to 1.5V Efficiency 100 VIN= OUTPUT CURRENT (A) MIC2164-3 12V to 3.3V Efficiency 100 VIN= OUTPUT CURRENT (A) Feedback Voltage vs. HSD Voltage 0.85 0.84 0.83 0.82 0.81 0.80 0.79 0.78 ...
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... INPUT VOLTAGE (V) MIC2164 Switching Frequency vs. VHSD 350 340 330 320 310 300 290 280 270 260 250 5.5 HSD VOLTAGE (V) MIC2164 Switching Frequency vs. Temperature 350 340 330 320 310 300 290 280 270 260 250 28 -40 - TEMPERATURE (°C) Current Limit Threshold vs ...
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... Micrel, Inc. Typical Characteristics (continued) Quiescent Supply Current vs. Input Voltage 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0 3.5 4 4.5 5 INPUT VOLTAGE (V) September 2009 5.5 7 MIC2164/-2/-3 M9999-090409-B ...
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... Micrel, Inc. Functional Characteristics September 2009 MIC2164 Switching Waveforms (Light Load) IL (5A/div) DH (20V/div) LX (10V/div) DL (5V/div) Vhsd = 12V Vin = 5V Vout = 3. 1.5H Iout = 1A Time 2μs/div 8 MIC2164/-2/-3 M9999-090409-B ...
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... Micrel, Inc. Functional Characteristics (continue) September 2009 9 MIC2164/-2/-3 M9999-090409-B ...
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... Micrel, Inc. Functional Characteristics (continue) September 2009 10 MIC2164/-2/-3 M9999-090409-B ...
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... Micrel, Inc. Functional Diagram September 2009 Figure 1. MIC2164/-2/-3 Block Diagram 11 MIC2164/-2/-3 M9999-090409-B ...
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... The MIC2164/-2/- adaptive on-time buck controller family. Figure 1 illustrates the block diagram for the control loop. The output voltage variation will be sensed by the MIC2164/-2/-3 feedback pin FB via the voltage divider R1 and R2, and compared to a 0.8V reference voltage V at the error comparator through a low gain ...
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... If the sensed voltage is over V , which is 130mV typical at 0.8V feedback voltage, CL the MIC2164/-2/-3 turns off the high-side MOSFET and a soft-start sequence is trigged. This mode of operation is called the “hiccup mode” and its purpose is to protect the down stream load in case of a hard short. The current limit threshold V to the FB voltage. Please refer to the “ ...
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... MOSFET to accurately sense the MOSFETs R . DS(ON) September 2009 MOSFET Gate Drive ΔI T L(pp) The MIC2164/-2/-3 high-side drive circuit is designed to DLY − (2) 2 switch an N-Channel MOSFET. The Block Diagram of Figure 1 shows a bootstrap circuit, consisting Schottky diode is recommended) and C (3) supplies energy to the high-side drive circuit ...
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... The total high-side MOSFET switching loss is instead (avg) C G[low - side] ISS , the power dissipated in the MIC2164/-2/-3 due .(I (avg) GATEDRIVE IN G[high - side] . Lower numbers translate into higher efficiency. Low G • Voltage rating • On-resistance • ...
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... L(RMS) OUT(max) Maximizing efficiency requires the proper selection of core material and minimizing the winding resistance. The high frequency operation of the MIC2164/-2/-3 requires the use of ferrite materials for all but the most cost sensitive applications. September 2009 Lower cost iron powder cores may be used but the increase in core loss will reduce the efficiency of the power supply ...
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... ×ESR DISS(CIN) CIN(RMS) CIN Voltage Setting Components The MIC2164/-2/-3 requires two resistors to set the September 2009 output voltage, as shown in Figure 5. should be much OUT The output voltage is determined by the equation: where V 3kΩ and 10kΩ too large, it may allow noise to be introduced into the voltage feedback loop ...
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... FB voltage ripple is less than 20mV. If the FB voltage ripple is so small that the gm amplifier and error comparator could not sense it, the MIC2164/-2/-3 will lose control and the output voltage is not regulated. In order to have some amount of FB voltage ripple, the ripple injection method is applied for low output voltage ripple applications ...
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... R1 and R2 are in kΩ range. September 2009 Step 2. Select Rinj according to the expected feedback voltage ripple. According to the equation (32), 1 Then the value of Rinj is obtained as: Step 3. Select Cinj as 100nF, which could be considered as short for a wide range of the frequencies. 19 MIC2164/-2/-3 Δ V τ ⋅ ...
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... PCB Layout is critical to achieve reliable, stable and efficient performance. A ground plane is required to control EMI and minimize the inductance in power, signal and return paths. The following guidelines should be followed to insure proper operation of the MIC2164/-2/-3 converter. IC • Place the IC and MOSFETs close to the point of load (POL). ...
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... Micrel, Inc. Evaluation Board Schematics September 2009 Figure 7. Schematic of MIC2164 20A Evaluation Board 21 MIC2164/-2/-3 M9999-090409-B ...
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... Resistor, Size 0603, 1% Vishay-Dale 4.75kΩ Resistor, Size 0603, 1% Vishay-Dale 8.06kΩ Resistor, Size 0603, 1% Vishay-Dale 40.2kΩ Resistor, Size 0603, 1% Vishay-Dale 3.24kΩ Resistor, Size 0603, 1% (9) 300kHz Buck Controller Micrel. Inc. LDO Micrel. Inc. 22 MIC2164/-2/-3 Qty ...
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... Micrel, Inc. Notes: 1. AVX: www.avx.com 2. MuRata: www.murata.com 3. TDK: www.tdk.com 4. Vishay: www.vishay.com 5. Sanyo: www.sanyo.com 6. Sumida: www.sumida.com 7. Fairchild: www.fairchildsemi.com 8. Central Semiconductor: www.centralsemi.com 9. Micrel, Inc: www.micrel.com September 2009 23 MIC2164/-2/-3 M9999-090409-B ...
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... Micrel, Inc. PCB Layout September 2009 Figure 8. MIC2164 20A Evaluation Board Top Layer Figure 9. MIC2164 20A Evaluation Board Bottom Layer 24 MIC2164/-2/-3 M9999-090409-B ...
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... Micrel, Inc. September 2009 Figure 10. MIC2164 20A Evaluation Board Mid-Layer 1 Figure 11. MIC2164 20A Evaluation Board Mid-Layer 2 25 MIC2164/-2/-3 M9999-090409-B ...
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... C12 12106D107MAT C15 06035C102KAT D1 SD103BWS L1 CDEP147NP-1R5M Q1 FDS6699S September 2009 Figure 12. MIC2164 12V to 3.3V @ 20A Buck Converter Manufacturer Description (1) AVX 0.1µF Ceramic Capacitor, X7R, Size 0603, 50V AVX 2.2µF Ceramic Capacitor, X5R, Size 0805, 10V (2) Vishay 220µF Aluminum Capacitor, SMD, 35V AVX 22µ ...
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... Micrel, Inc. Bill of Materials (MIC2164 12V to 3.3V @ 20A) Item Part Number Q2, Q3 FDS7766S R1 CRCW06032R21FKEY3 R5 CRCW06031R21FKEY3 R6, R9 CRCW06031002FKEY3 R15 CRCW06033241FKEY3 U1 MIC2164YMM U2 MIC5233-5.0YM5 Notes: 1. AVX: www.avx.com 2. Vishay: www.vishay.com 3. Sanyo: www.sanyo.com 4. Sumida: www.sumida.com 5. Fairchild: www.fairchildsemi.com 6. Micrel, Inc: www.micrel.com. September 2009 Manufacturer Description Fairchild 30V N-Channel MOSFET 6.5mΩ Rds(on) @ 4.5V Vishay Dale 2.21Ω ...
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... C12 12106D107MAT C15 06035C102KAT D1 SD103BWS L1 CDEP105-2R0MC-32 Q1, Q2 FDS7764A September 2009 Figure 13. MIC2164 12V to 1.8V @ 10A Buck Converter Manufacturer Description (1) AVX 0.1µF Ceramic Capacitor, X7R, Size 0603, 50V AVX 2.2µF Ceramic Capacitor, X5R, Size 0805, 10V (2) Vishay 220µF Aluminum Capacitor, SMD, 35V AVX 10µ ...
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... Micrel, Inc. Bill of Materials (MIC2164 12V to 1.8V @ 10A) Item Part Number R1 CRCW06032R21FKEY3 R5 CRCW06031R21FKEY3 R6, R9 CRCW06031002FKEY3 R15 CRCW06038061FKEY3 U1 MIC2164YMM U2 MIC5233-5.0YM5 Notes: 1. AVX: www.avx.com 2. Vishay: www.vishay.com 3. Sanyo: www.sanyo.com 4. Sumida: www.sumida.com 5. Fairchild: www.fairchildsemi.com 6. Micrel, Inc: www.micrel.com. September 2009 Manufacturer Description Vishay Dale 2.21Ω Resistor, Size 0603, 1% Vishay Dale 1.21Ω ...
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... D1 SD103BWS L1 CDRH104RNP-3R8 Q1 FDS6910 R1 CRCW06032R21FKEY3 R5 CRCW06031R21FKEY3 September 2009 Figure 14. MIC2164 12V to 1. Buck Converter Manufacturer Description (1) AVX 0.1µF Ceramic Capacitor, X7R, Size 0603, 50V AVX 2.2µF Ceramic Capacitor, X5R, Size 0805, 10V (2) Vishay 220µF Aluminum Capacitor, SMD, 35V AVX 10µF Ceramic Capacitor, X5R, Size 1210, 16V AVX 1µ ...
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... Micrel, Inc. Bill of Materials (MIC2164 12V to 1.0V @ 5A) Item Part Number R6, R9 CRCW06031002FKEY3 R15 CRCW06034022FKEY3 U1 MIC2164YMM U2 MIC5233-5.0YM5 Notes: 1. AVX: www.avx.com 2. Vishay: www.vishay.com 3. Sanyo: www.sanyo.com 4. Sumida: www.sumida.com 5. Fairchild: www.fairchildsemi.com 6. Micrel, Inc: www.micrel.com September 2009 Manufacturer Description Vishay Dale 10k Resistor, Size 0603, 1% Vishay Dale 40 ...
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... C12 12106D107MAT C15 06035C102KAT D1 SD103BWS L1 HCP1305-1R0 Q1 FDS8672S September 2009 Figure 15. MIC2164-2 12V to 3.3V @ 15A Buck Converter Manufacturer Description (1) AVX 0.1µF Ceramic Capacitor, X7R, Size 0603, 50V AVX 2.2µF Ceramic Capacitor, X5R, Size 0805, 10V (2) Vishay 220µF Aluminum Capacitor, SMD, 35V AVX 22µ ...
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... Micrel, Inc. Bill of Materials (MIC2164-2 12V to 3.3V @ 15A) Item Part Number Q2, Q3 FDS8874 R1 CRCW06032R21FKEY3 R5 CRCW06031R21FKEY3 R6 CRCW06031002FKEY3 R6 CRCW06034021FKEY3 R15 CRCW06033241FKEY3 U1 MIC2164-2YMM U2 MIC5233-5.0YM5 Notes: 1. AVX: www.avx.com 2. Vishay: www.vishay.com 3. Sanyo: www.sanyo.com 4. Cooper Bussmann: www.cooperbussmann.com 5. Fairchild: www.fairchildsemi.com 6. Micrel, Inc: www.micrel.com. September 2009 Manufacturer Description Fairchild 30V N-Channel MOSFET 7.0mΩ ...
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... C4 1210YD106MAT C9 0805ZD105KAT C10 06035C222KAT C11 6SEPC560MX C12 12106D107MAT C15 06035C102KAT D1 SD103BWS L1 HCF1305-1R0 Q1, Q2 FDS8672S R1 CRCW06032R21FKEY3 September 2009 Figure 16. MIC2164-3 12V to 1.8V @ 10A Buck Converter Manufacturer (1) AVX AVX (2) Vishay AVX AVX AVX (3) Sanyo AVX AVX Vishay Cooper (4) Bussmann (5) Fairchild Vishay Dale 34 Description 0.1µ ...
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... Micrel, Inc. Bill of Materials (MIC2164-3 12V to 1.8V @ 10A) Item Part Number R5 CRCW06031R21FKEY3 R6 CRCW06031002FKEY3 R9 CRCW06032001FKEY3 R15 CRCW06038061FKEY3 U1 MIC2164-3YMM U2 MIC5233-5.0YM5 Notes: 1. AVX: www.avx.com 2. Vishay: www.vishay.com 3. Sanyo: www.sanyo.com 4. Cooper: www.cooperbussmann.com 5. Fairchild: www.fairchildsemi.com 6. Micrel, Inc: www.micrel.com. September 2009 Manufacturer Description Vishay Dale 1.21Ω Resistor, Size 0603, 1% ...
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... 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 September 2009 10-Pin MSOP (MM) indemnify Micrel for any damages resulting from such use or sale. © 2009 Micrel, Incorporated. 36 MIC2164/-2/-3 M9999-090409-B ...