EP53A8LQI Datasheet, PDF (4/14 Pages) Enpirion, Inc. – 1000mA Synchronous Buck Regulator with Integrated Inductor

EP53A8LQI/EP53A8HQI
Electrical Characteristics
NOTE: T_A = -40°C to +85°C unless otherwise noted. Typical values are at T_A = 25°C, VIN = 3.6V.
C_IN = -4.7µF 0603 MLCC, C_OUT = 10µF 0805 MLCC
PARAMETER
Operating Input Voltage
Under Voltage Lock-out –
V_IN Rising
Under Voltage Lock-out –
V_IN Falling
Drop Out Resistance
Output Voltage Range
Dynamic Voltage Slew
Rate
VID Preset V_OUT Initial
Accuracy
Feedback Pin Voltage
Initial Accuracy
Line Regulation
Load Regulation
Temperature Variation
Output Current
Shut-down Current
OCP Threshold
VS0-VS2, Pin Logic Low
VS0-VS2, Pin Logic High
VS0-VS2, Pin Input
Current
Enable Pin Logic Low
Enable Pin Logic High
Enable Pin Current
Feedback Pin Input
Current
Operating Frequency
Soft Start Operation
Soft Start Slew Rate
Soft Start Rise Time
SYMBOL
V_IN
V_{UVLO_R}
TEST CONDITIONS
V_{UVLO_F}
R_DO
V_OUT
V_SLEW
∆V_OUT
V_FB
∆V_{OUT_LINE}
∆V_{OUT_LOAD}
∆V_{OUT_TEMPL}
I_OUT
I_SD
I_LIM
V_VSLO
V_VSHI
Input to Output Resistance
EP53A8LQI (V_DO = I_LOAD X R_DO)
EP53A8HQI
EP53A8HQI
EP53A8LQI
T_A = 25°C, V_IN = 3.6V;
I_LOAD = 100mA ;
0.8V ≤ V_OUT ≤ 3.3V
T_A = 25°C, V_IN = 3.6V;
I_LOAD = 100mA ;
0.8V ≤ V_OUT ≤ 3.3V
2.4V ≤ V_IN ≤ 5.5V
0A ≤ I_LOAD ≤ 1000mA
-40°C ≤ T_A ≤ +85°C
Enable = Low
2.4V ≤ V_IN ≤ 5.5V
0.6V ≤ V_OUT ≤ 3.3V
I_VSX
Note 1
V_ENLO
V_ENHI
I_ENABLE
Note 1
I_FB
Note 1
F_OSC
∆V_SS
∆T_SS
EP53A8HQI (VID only)
EP53A8LQI (VID only)
EP53A8LQI (VFB mode); Note 2
MIN
2.4
0.6
1.8
TYP
2.0
1.9
350
8
4
-2
.588
0.6
1000
1.25
0.0
1.4
0.03
0.6
30
0.75
1.4
<100
1.4
<100
<100
5
8
4
170
225
Note 1: Parameter guaranteed by design and characterization.
Note 2: Measured from when V_IN ≥ V_{UVLO_R} & ENABLE pin crosses its logic High threshold.
MAX UNITS
5.5
V
V
500
V_IN-V_DO
3.3
V
mΩ
V
V/mS
+2
%
0.612
V
%/V
%/A
ppm/°C
mA
µA
A
0.3
V
V_IN
V
nA
0.3
V
V
nA
nA
MHz
V/mS
280
µS
©Enpirion 2009 all rights reserved, E&OE
03651
4
12/16/2009
www.enpirion.com
Rev:B