SC560
4
Parameter Symbol Conditions Min Typ Max Units
Noise
(3)
e
N
V
IN
= 3.7V, I
OUTx
= 50mA ,
10Hz < f < 100kHz, C
BYP
= 22nF
50 μV
RMS
V
IN
= 3.7V, I
OUTx
= 50mA ,
10Hz < f < 100kHz
300 μV
RMS
Power Supply Rejection
Ratio
(3)
PSRR
V
IN
= 3.7V, I
OUTx
= 50mA, f = 1kHz,
C
BYP
= 22nF
65 dB
V
IN
= 3.7V, I
OUTx
= 50mA, f = 1kHz 40
PGOOD Delay
(4)
t
DELAY
160 200 240 ms
PGOOD Threshold
(4)
V
TH-PGOOD
Percentage of nominal output,
V
OUTA
falling
82 87 92 %
Start-Up Time t
SU
From OFF to 87% V
OUTx
, I
OUTx
= 50mA,
C
BYP
= 22nF
(2)
1 ms
Power Up Delay Between LDOA and
LDOB
(5)
t
DELAY
Delay between V
OUTA
and V
OUTB
start-ups 128 μs
Under Voltage Lockout V
UVLO
V
IN
Rising 2.15 2.25 2.35 V
UVLO Hysteresis V
UVLO-HYS
100 mV
Over Temperature Protection
Threshold
T
OT
Temperature Rising 160 °C
Over Temperature Hysteresis T
OT-HYS
20 °C
Digital Inputs
Logic Input High Threshold V
IH
V
IN
= 5.5V 1.25 V
Logic Input Low Threshold V
IL
V
IN
= 2.5V 0.4 V
Logic Input High Current I
IH
V
IN
= 5.5V 1 μA
Logic Input Low Current I
IL
V
IN
= 5.5V 1 μA
Digital Outputs
PGOOD Output voltage Low V
OL
I
SINK
= 500μA,V
IN
=3.7V 7 20 mV
Electrical Characteristics (continued)
Notes:
(1) Dropout voltage is de ned as V
IN
- V
OUTx
, when V
OUTx
is 100mV below the value of V
OUTx
at V
IN
= V
OUTx
+ 0.5V.
(2) SC560A, SC560B and SC560C only
(3) Except SC560B and xed output versions
(4) Except SC560A and SC560B
(5) SC560A and SC560C only
