NCP590
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS -40°C v T
A
v 85°C (Note 5); V
IN
= V
OUT
+0.5 V or 2.1 V, whichever is greater (Note 6).
V
EN1,2
= 0.95 V, C
IN
= C
OUT1,2
= 1.0 mF, unless noted otherwise
Parameter UnitMaxTypMinTest ConditionsSymbol
Regulators
Ground Current;
I
GND
= I
IN
– I
OUT
I
GND
V
EN1
= 0.95 V, I
OUT1
= 200 mA;
V
EN2
= 0.4 V, I
OUT2
= 0 mA
OR
V
EN2
= 0.95 V, I
OUT2
= 200 mA;
V
EN1
= 0.4 V, I
OUT1
= 0 mA
One Regulator ON; One Regulator OFF
- 105 150 mA
Ground Current;
I
GND
= I
IN
– I
OUT
I
GND
I
OUT1
= I
OUT2
= 200 mA
Both Regulators ON
- 175 250 m A
Disable Current;
I
DIS
= I
IN
– I
OUT
I
DIS
I
OUT1,2
= 0 mA, V
EN1,2
= 0.4 V
Both Regulators OFF
0 (Note
14)
1 mA
I
Load
Load Current (Note 10) I
OUT
0 - - mA
Maximum Output Current I
OUT
300 - - mA
Current Limit, per Regulator (Note 9) I
SC
V
OUT
= 0 V - 750 - mA
Output Noise Voltage (Note 9) e
n
BW = 10 Hz to 100 kHz
V
OUT
= 0.8 V
V
OUT
= 2.8 V
-
-
20
30
-
-
mV
RMS
Thermal Shutdown (Note 9) T
jSD
Junction Temperature - 155 - _C
Hysteresis - 15 -
Input under voltage lock out UVLO - 1.9 2.1 V
UVLO hysteresis UVLO
hys
- 0.1 - V
Power Supply Rejection Ratio
(Note 9)
PSRR I
OUT
= 200 mA
120 Hz 0.8 V output
120 Hz 1.8 V output
120 Hz 2.8 V output
-
-
-
60
55
50
-
-
-
dB
Power Supply Rejection Ratio
(Note 9)
PSRR I
OUT
= 200 mA
1 KHz 2.8 V output
- 40 -
dB
Enable Control Characteristics
Maximum Input Current at EN Input
I
EN
V
EN
= 0.0 V - 0.01 -
mA
V
EN
= V
IN
- 0.01 -
Low Input Threshold V
IL
- - 0.4 V
High Input Threshold V
IH
0.95 - - V
Timing Characteristics
Turn On Time Delay, Both outputs
turned on with ENABLE
T
ON
To 95% DV
O
V
IN(MIN)
to 5.5 V
- 375 700 ms
Turn Off Time Delay, Both outputs
turned off with ENABLE (Note 9)
T
OFF
V
IN
= 5.5 V
V
OUT
= 5 V, to V
OUT
= 250 mV
V
OUT
= 0.8 V, to V
OUT
= 40 mV
-
-
215
155
-
-
ms
ms
Recommended Output Capacitor Specifications
Output Capacitance (Note 9) C
OUT
Capacitance over full temperature
range of application. Any ESR
0.7 1.0 4.7 mF
5. Performance guaranteed over specified operating range by design, guard banded test limits, and/or characterization. Production tested at
T
J
= T
A
= 25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
6. V
OUT
based on the greater of the two outputs.
7. Overall accuracy specified over specified operating conditions of line, load, and temperature.
8. Drop out voltage V
DO
= V
IN
– V
OUT
measured when the output voltage has dropped 100 mV from the nominal value for V
OUT
> 2.0 V.
9. Guaranteed by design, not production tested.
10. Regulated and stable output over full load range down to 0 mA load.
11. V
IN
is set at V
IN
= ((V
OUT
+ 0.5 V) + 5.5 V) / 2 or V
IN
= ((2.1 V) + 5.5 V) / 2, whichever is greater.
12. Applicable for V
OUT
u 1.2 V.
13. For all output voltages and -40°C to 85°C overall voltage accuracy is 2.9%.
14. Typical disable current is in the nA.
