mic68200 Micrel Semiconductor, mic68200 Datasheet
mic68200
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mic68200 Summary of contents
Page 1
... General Description The MIC68200 is a high peak current LDO regulator designed specifically for powering applications such as FPGA core voltages that require high start up current with lower nominal operating current. Capable of sourcing 2A of current for start-up, the MIC68200 provides high power from a small MLF package ...
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... August 2007 MIC68200-1.8YML U1 IN OUT EN SNS Master RC DLY GND POR MIC68200-1.5YML U2 IN OUT EN SNS Slave RC DLY GND POR U1.T DLY RC U2.T RC U2.T DLY 2 2x µProcessor 47KΩ I/O 4.7µF CORE 4.7µF /RESET U1.T DLY U1 Fully Shut Down U2.T DLY U2 Fully Shut Down M9999-081507-C MIC68200 ...
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... Tracking Dual Power Supply for I/O and Core Voltage of µProcessor August 2007 47KΩ MIC68200-1.5YML U1 IN OUT EN Master RC DELAY GND POR MIC68200-1.2YML IN OUT U2 EN Slave RC DELAY GND POR U2.T DLY 3 µProcessor I/O 4.7µF CORE 4.7µF /RESET U1 Fully Shut Down U2.T DLY U2 Fully Shut Down M9999-081507-C MIC68200 ...
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... ZC12 MIC68200-1.5YML ZC15 MIC68200-1.8YML ZC18 MIC68200-2.5YML ZC25 MIC68200-3.3YML ZC33 MIC68200YML ZAAA Notes: * For additional voltage options, contact Micrel Marketing. ® ** MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. August 2007 Output Junction ...
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... EP 6 10-Pin 3mm × 3mm MLF (ML) MIC68200-x.xYML (Fixed) MIC68200YML (Adjustable) Pin Name Pin Function IN Input: Input voltage supply pin. Place a capacitor to ground to bypass the input supply DLY Delay: Capacitor to ground sets internal delay timer. Timer delays power-on reset (POR) output at turn-on and ramp down at turn-off. ...
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... JA ≤ +125°C, unless noted. J Min Typ ≤ 5.5V -2 0.49 0.50 10 0.06 0.3 140 200 300 1 0.01 2.0 3 100 0 7 12.5 0.7 1 1.185 1.235 MIC68200 IN ≤ +125°C J Max Units + 250 mV 400 mV 600 µA 6.0 A 150 µs V 0.2 V 250 mV µ ...
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... REF RAMP 200mV < V < V Measure (VOUT – TARGET ; Measure (VOUT - 500mV)) RC TARGET (ambient temperature Min Typ 0 - θ – Exceeding the maximum D(max) J(max M9999-081507-C MIC68200 Max Units 1.3 µ 100 ...
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... OUT 1. TEMPERATURE (°C) Current Limit vs. Input Voltage 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3 1.8V OUT 3 10µF OUT 3.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE (V) 8 MIC68200 Dropout Voltage vs. Output Current 400 350 300 250 200 150 100 OUT V = 1.8V 50 OUT C = 10µF OUT 0 0.0 0.4 0.8 1.2 1.6 2.0 OUTPUT CURRENT (mA) ...
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... Micrel, Inc. Functional Characteristics August 2007 9 MIC68200 M9999-081507-C ...
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... In shutdown the regulator consumes very little current (only a few microamperes of leakage). For simple applications the enable (EN) can be connected to V MIC68200 only requires a few µA’s of enable current to turn on, actual enable pin current will depend on the overdrive (voltage exceeding 1V) in each particular application. ...
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... Fixed Parts driven from another (Master) regulator the two outputs will track each other until the Master exceeds the target voltage of the Slave regulator. Typically the output of the MIC68200 will track above the RC input by 30mV to 70mV. This offset is designed to allow Master/Slave tracking of same-voltage regulators ...
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... RC pin for low values of output capacitor the maximum discharge current available at the output for large values of output capacitor. Turn off slew rate is not a specified characteristic of the MIC68200. Sequencing Configurations Sequencing refers to timing based Master/Slave control between regulators. It allows a Master device to control the start and stop timing of a single or multiple Slave devices ...
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... DLY GND POR August 2007 Fixed voltage versions of MIC68200 have two internal voltage dividers: one for setting the output voltage and the other for driving the tracking circuitry. Adjustable parts have up to two external dividers: one from output to SNS (to set the output voltage) and one from the output to the Slave RC pin (in tracking configurations) ...
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... POR Final Note on Tracking The MIC68200 does not fully shutdown until the output load is discharged to near zero driven from an external source in a tracking configuration, and the external source does not go to zero on shutdown it may prevent complete shutdown of the MIC68200. This will cause no damage, but some Q current will remain and may cause concern in battery operated portable equipment ...
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... 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. August 2007 10-Pin 3mm x 3mm MLF (ML) © 2005 Micrel, Inc. 15 MIC68200 M9999-081507-C ...