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CBC322ST1R0MR Scheda tecnica(PDF) 5 Page - Analog Devices |
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CBC322ST1R0MR Scheda tecnica(HTML) 5 Page - Analog Devices |
5 / 40 page Data Sheet ADP5040 Rev. 0 | Page 5 of 40 Parameter Symbol Conditions Min Typ Max Unit POWER SUPPLY REJECTION RATIO PSRR 1 kHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V, IOUT = 100 mA 66 dB 100 kHz, VIN2,VIN3 = 3.3 V, VOUT2,VOUT3 = 2.8 V, IOUT = 100 mA 57 dB 1 MHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V, IOUT = 100 mA 60 dB 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). 2 This is the input current into VIN2 and VIN3, which is not delivered to the output load. 3 Based on an end-point calculation using 1 mA and 300 mA loads. 4 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output voltages above 1.7 V. 5 Current-limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 3.0 V output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V, or 2.7 V. INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS Table 4. Parameter Symbol Conditions Min Typ Max Unit INPUT CAPACITANCE (BUCK)1 CMIN1 TJ = −40°C to +125°C 4.7 40 µF OUTPUT CAPACITANCE (BUCK)2 CMIN2 TJ = −40°C to +125°C 7 40 µF INPUT AND OUTPUT CAPACITANCE3 (LDO1, LDO2) CMIN34 TJ = −40°C to +125°C 0.70 µF CAPACITOR ESR RESR TJ = −40°C to +125°C 0.001 1 Ω 1 The minimum input capacitance should be greater than 4.7 µF over the full range of operating conditions. The full range of operating conditions in the application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended, whereas Y5V and Z5U capacitors are not recommended for use with the buck. 2 The minimum output capacitance should be greater than 7 µF over the full range of operating conditions. The full range of operating conditions in the application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended, whereas Y5V and Z5U capacitors are not recommended for use with the buck. 3 The minimum input and output capacitance should be greater than 0.70 µF over the full range of operating conditions. The full range of operating conditions in the application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended, whereas Y5V and Z5U capacitors are not recommended for use with LDOs. |
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