AN_SY8088
AN_SY8088 Rev. 0.1 Silergy Corp. Confidential- Prepared for Customer Use Only 3
Electrical Characteristics
(V
IN
= 5V, V
OUT
= 2.5V, L = 2.2uH, C
OUT
= 10uF, T
A
= 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Voltage Range
V
IN
2.5
5.5
V
Quiescent Current
I
Q
I
OUT=
0
,
V
FB
=V
REF
⋅
105%
40
µA
Shutdown Current
I
SHDN
EN=0
0.1
1
µA
Feedback Reference Voltage
V
REF
0.588
0.6
0.612
V
PFET RON
R
DS(ON)
,
P
260
m
Ω
NFET RON
R
DS(ON)
,
N
170
m
Ω
PFET Current Limit
I
LIM
1.3
A
EN rising threshold
V
ENH
1.5
V
EN falling threshold
V
ENL
0.4
V
Input UVLO threshold
V
UVLO
2.5
V
UVLO hysteresis
V
HYS
0.1
V
Oscillator Frequency
F
OSC
1.5
MHz
Min ON Time
80
ns
Max Duty Cycle
100
%
Soft Start Time
T
SS
1
ms
Thermal Shutdown Temperature
T
SD
160
°C
Thermal Shutdown Hysteresis
T
HYS
15
°C
Note 1: Stresses beyond the “Absolute Maximum Ratings” may cause permanent damage to the device. These are
for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for
extended periods may remain possibility to affect device reliability.
Note 2:
θ
JA is measured in the natural convection at T
A
= 25°C on a low effective single layer thermal conductivity
test board of JEDEC 51-3 thermal measurement standard. Exposed Paddle of DFN package is the case position for
θ
JC measurement.
Note 3: The device is not guaranteed to function outside its operating conditions.
