Datasheet

ADP7102 Data Sheet
Rev. C | Page 4 of 28
Parameter Symbol Conditions Min Typ Max Unit
PROGRAMMABLE EN/UVLO
UVLO Threshold rising UVLO
RISE
3.3 V ≤ V
IN
≤ 20 V, T
J
= −40°C to +125°C 1.18 1.23 1.28 V
UVLO Threshold falling UVLO
FALL
3.3 V ≤ V
IN
≤ 20 V, T
J
= −40°C to +125°C, 10 kΩ
in series with enable pin
1.13 V
UVLO Hysteresis Current UVLO
HYS
V
EN
> 1.25 V, T
J
= −40°C to +125°C 7.5 9.8 12 µA
Enable Pulldown Current I
EN-IN
EN = V
IN
500 nA
INPUT VOLTAGE
Start Threshold
V
START
T
J
= −40°C to +125°C
3.2
V
Shutdown Threshold V
SHUTDOWN
T
J
= −40°C to +125°C 2.45 V
Hysteresis 250 mV
OUTPUT NOISE
OUT
NOISE
10 Hz to 100 kHz, V
IN
= 5.5 V, V
OUT
= 1.8 V
15
µV rms
10 Hz to 100 kHz, V
IN
= 6.3 V, V
OUT
= 3.3 V 15 µV rms
10 Hz to 100 kHz, V
IN
= 8 V, V
OUT
= 5 V 15 µV rms
10 Hz to 100 kHz, V
IN
= 12 V, V
OUT
= 9 V 15 µV rms
10 Hz to 100 kHz, V
IN
= 5.5 V, V
OUT
= 1.5 V,
adjustable mode
18 µV rms
10 Hz to 100 kHz, V
IN
= 12 V, V
OUT
= 5 V,
adjustable mode
30 µV rms
10 Hz to 100 kHz, V
IN
= 18 V, V
OUT
= 15 V,
adjustable mode
65 µV rms
POWER SUPPLY REJECTION RATIO PSRR 100 kHz, V
IN
= 4.3 V, V
OUT
= 3.3 V 50 dB
100 kHz, V
IN
= 6 V, V
OUT
= 5 V 50 dB
10 kHz, V
IN
= 4.3 V, V
OUT
= 3.3 V 60 dB
10 kHz, V
IN
= 6 V, V
OUT
= 5 V 60 dB
100 kHz, V
IN
= 3.3 V, V
OUT
= 1.8 V, adjustable mode
50
dB
100 kHz, V
IN
= 6 V, V
OUT
= 5 V, adjustable mode 60 dB
100 kHz, V
IN
= 16 V, V
OUT
= 15 V, adjustable mode 60 dB
10 kHz, V
IN
= 3.3 V, V
OUT
= 1.8 V, adjustable mode 60 dB
10 kHz, V
IN
= 6 V, V
OUT
= 5 V, adjustable mode 80 dB
10 kHz, V
IN
= 16 V, V
OUT
= 15 V, adjustable mode 80 dB
1
Based on an end-point calculation using 1 mA and 300 mA loads. See Figure 6 for typical load regulation performance for loads less than 1 mA.
2
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 3.0 V.
3
Start-up time is defined as the time between the rising edge of EN to VOUT being at 90% of its nominal value.
4
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 5.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 5.0 V, or 4.5 V.
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
Minimum Input and Output Capacitance
1
C
MIN
T
A
= −40°C to +125°C 0.7 µF
Capacitor ESR R
ESR
T
A
= −40°C to +125°C 0.001 0.2 Ω
1
The minimum input and output capacitance should be 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.