EP5348UI Datasheet, PDF (4/12 Pages) Enpirion, Inc. – 400mA Synchronous Buck Regulator with Integrated Inductor

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 = 2.2µF 0603 MLCC, C_OUT = 10µF 0603.
PARAMETER
Operating Input Voltage
Range
Under Voltage Lock-out –
V_IN Rising
Under Voltage Lock-out –
V_IN Falling
Shut-down Supply Current
VFB Voltage Initial
Accuracy
Line Regulation
Load Regulation
Temperature Variation
Feedback Pin Input
Current
Output Current
OCP Threshold
Output Dropout
Resistance (Note 1)
Voltage (Note 1,2)
Operating Output Voltage
Range
Enable Pin Logic Low
Enable Pin Logic High
Enable Pin Current
Operating Frequency
Soft Start Operation
V_OUT Rise Time
SYMBOL
V_IN
TEST CONDITIONS
V_{UVLO_R}
V_{UVLO_F}
I_SD
V_FB
ΔV_{OUT_LINE}
ΔV_{OUT_LOAD}
ΔV_{OUT_TEMPL}
Enable = Low
T_A = 25°C, V_IN = 3.6V;
I_LOAD = 100mA ;
0.8V ≤ V_OUT ≤ 3.3V
2.5V ≤ V_IN ≤ 5.5V
0A ≤ I_LOAD ≤ 400Ma
-40°C ≤ T_A ≤ +85°C
I_FB
Note 1
I_OUT
I_LIM
2.5V ≤ V_IN ≤ 5.5V
0.6V ≤ V_OUT ≤ 3.3V
R_DO
V_{DO_FL}
V_OUT
V_ENLO
V_ENHI
I_ENABLE
F_OSC
Input to Output Resistance
V_INMIN - V_OUT at Full load
V_DO = I_OUT * R_DO
Note 1
T_RISE
From 0 to full output voltage
MIN TYP
2.5
2.3
2.2
3
0.588 0.600
0.03
0.48
24
<300
0
1.4
520
208
0.6
1.4
<200
9
1.17
1.8
Notes: 1 - Parameter guaranteed by design
2 - V_{DO_FL} (full-load drop-out voltage) is defined as (Maximum I_OUT x Dropout Resistance)
EP5348UI
MAX UNITS
5.5
V
V
V
µA
0.612
V
%/V
%/A
ppm/°C
nA
400
mA
A
780
312
V_IN-V_DO
0.3
mΩ
mV
V
V
V
nA
MHz
2.43
mSec
©Enpirion 2012 all rights reserved, E&OE
05721
4
September 12, 2012
www.enpirion.com
Rev: C