ADP7105(Rev0) 데이터 시트보기 (PDF) - Analog Devices
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ADP7105 Datasheet PDF : 28 Pages
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ADP7105
Data Sheet
Parameter
SOFT START SOURCE CURRENT
PROGRAMMABLE EN/UVLO
UVLO Threshold Rising
UVLO Threshold Falling
UVLO Hysteresis Current
Enable Pull-Down Current
Start Threshold
Shutdown Threshold
Hysteresis
OUTPUT NOISE
Symbol
SSI-SOURCE
UVLORISE
UVLOFALL
UVLOHYS
IEN-IN
VSTART
VSHUTDOWN
OUTNOISE
POWER SUPPLY REJECTION RATIO PSRR
Test Conditions/Comments
Min
SS = GND
3.3 V ≤ VIN ≤ 20 V, TJ = −40°C to +125°C
1.18
3.3 V ≤ VIN ≤ 20 V, TJ = −40°C to +125°C, 10 kΩ in
series with the enable input pin
VEN > 1.25 V, TJ = −40°C to +125°C
7.5
EN = VIN
TJ = −40°C to +125°C
TJ = −40°C to +125°C
2.45
10 Hz to 100 kHz, VIN = 5.5 V, VOUT = 1.8 V
10 Hz to 100 kHz, VIN = 6.3 V, VOUT = 3.3 V
10 Hz to 100 kHz, VIN = 8 V, VOUT = 5 V
10 Hz to 100 kHz, VIN = 12 V, VOUT = 9 V
10 Hz to 100 kHz, VIN = 5.5 V, VOUT = 1.5 V,
adjustable mode
10 Hz to 100 kHz, VIN = 12 V, VOUT = 5 V, adjustable
mode
10 Hz to 100 kHz, VIN = 20 V, VOUT = 15 V,
adjustable mode
100 kHz, VIN = 4.3 V, VOUT = 3.3 V
100 kHz, VIN = 6 V, VOUT = 5 V
10 kHz, VIN = 4.3 V, VOUT = 3.3 V
10 kHz, VIN = 6 V, VOUT = 5 V
100 kHz, VIN = 3.3 V, VOUT = 1.8 V, adjustable mode
100 kHz, VIN = 6 V, VOUT = 5 V, adjustable mode
100 kHz, VIN = 16 V, VOUT = 15 V, adjustable mode
10 kHz, VIN = 3.3 V, VOUT = 1.8 V, adjustable mode
10 kHz, VIN = 6 V, VOUT = 5 V, adjustable mode
10 kHz, VIN = 16 V, VOUT = 15 V, adjustable mode
Typ Max Unit
1
µA
1.23 1.28
1.13
9.8 12
500
3.2
250
15
15
15
15
18
30
65
50
50
60
60
50
60
60
60
80
80
V
V
µA
nA
V
V
mV
µV rms
µV rms
µV rms
µV rms
µV rms
µV rms
µV rms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
1 Based on an endpoint calculation using 1 mA and 500 mA loads. See Figure 6 for typical load regulation performance for loads less than 1 mA.
2 The adjust input function (ADJ) of the SENSE/ADJ pin applies to adjustable output voltage models only; whereas the sense function (SENSE) applies to fixed output
voltage models only.
3 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This specification applies only for
output voltages greater than 3.0 V.
4 Start-up time is defined as the time between the rising edge of EN to VOUT being at 90% of its nominal value.
5 Current-limit threshold is defined as the current at which the output voltage falls to 90% of the specified typical value. For example, the current limit for a 5.0 V output
voltage is defined as the current that causes the output voltage to fall to 90% of 5.0 V, or 4.5 V.
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 2.
Parameter
Minimum Input and Output Capacitance1
Capacitor ESR
Symbol
CMIN
RESR
Test Conditions/Comments
TA = −40°C to +125°C
TA = −40°C to +125°C
Min Typ Max Unit
0.7
µF
0.001
0.2
Ω
1 Ensure that the minimum input and output capacitance is greater than 0.7 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;
Y5V and Z5U capacitors are not recommended for use with any LDO regulator.
Rev. 0 | Page 4 of 28
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