EP53A7LQ Datasheet, PDF (4/17 Pages) Enpirion, Inc. – 1000mA Synchronous Buck Regulator with Integrated Inductor

EP53A7LQI/EP53A7HQI
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 MLCC, C_OUT = 10µF 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
EP53A7HQI Operating
Quiescent Current
SYMBOL
V_IN
V_{UVLO_R}
TEST CONDITIONS
V_{UVLO_F}
R_DO
V_OUT
V_SLEW
ΔV_OUT
V_FB
ΔV_{OUT_LINE}
ΔV_{OUT_LOAD}
ΔV_{OUT_TEMPL}
I_OUT
I_SD
I_Q
Input to Output Resistance
EP53A7LQI (V_DO = I_LOAD X R_DO)
EP53A7HQI
EP53A7LQI
EP53A7HQI
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
I_LOAD=0; Preset Output Voltages,
LLM=High
MIN
2.4
0.6
1.8
TYP
2.0
MAX UNITS
5.5
V
V
1.9
V
350
500
mΩ
V_IN-V_DO
3.3
V
4
8
V/mS
-2
+2
%
.588
0.6 0.612
V
0.03
0.6
30
1000
0.75
55
%/V
%/A
ppm/°C
mA
µA
µA
EP53A7LQI Operating
Quiescent Current
OCP Threshold
Feedback Pin Input
Current
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
I_Q
I_LIM
I_FB
V_VSLO
V_VSHI
I_VSX
V_ENLO
V_ENHI
I_ENABLE
LLM Engage Headroom
LLM Pin Logic Low
LLM Pin Logic High
V_LLMLO
V_LLMHI
I_LOAD=0; Preset Output Voltages,
65
µA
LLM=High
2.4V ≤ V_IN ≤ 5.5V
0.6V ≤ V_OUT ≤ 3.3V
1.25
1.4
A
Note 1
<100
nA
0.0
0.3
V
1.4
V_IN
V
Note 1
<100
nA
Note 1
0.3
V
1.4
V
<100
nA
Minimum difference between V_IN
and V_OUT to ensure proper LLM
700
operation
1.4
mV
0.3
V
V
©Enpirion 2009 all rights reserved, E&OE
4
www.enpirion.com
01543
11/11/2009
Rev:B