CBC322ST1R0MR datasheet(5/40 Pages) AD

部品番号	CBC322ST1R0MR

部品情報	Micro PMU with 1.2 A Buck Regulator

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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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