EP53F8QI Datasheet, PDF (4/11 Pages) Enpirion, Inc. – 1500 mA Synchronous Buck PWM DC-DC Converter with Integrated Inductor

Electrical Characteristics
Typical values for V_IN = 5V and T_A =25°C, unless otherwise noted.
PARAMETER
Operating Input Voltage
Under Voltage Lockout
Under Voltage Lockout
VFB Voltage Initial
Accuracy
Line Regulation
Load Regulation
Temperature Variation
Soft Start Slew Rate
SYMBOL
V_IN
V_UVLO
V_UVLO
V_FB
TEST CONDITIONS
V_IN going low to high
V_IN going high to low
T_A = 25 °C; V_IN = 5V
I_LOAD = 100 mA
2.4 V ≤ V_IN ≤ 5.5V
I_LOAD = 0 to 1.5A
-40°C ≤ T_A ≤ +85°C
VFB, ENABLE, Pin Input
Current (Note 1)
-40°C ≤ T_A ≤ +85°C
ENABLE Voltage
Threshold
Logic Low
Logic High
POK Upper Threshold
POK Upper Threshold
POK Lower Threshold
POK Lower Threshold
POK Low Voltage
POK Pin V_OH Leakage
Current
V_OUT Rising
V_OUT Falling
V_OUT Rising;
percent of V_OUT Nominal
V_OUT Falling;
percent of V_OUT Nominal
I_SINK = 5 mA, -40°C ≤ T_A ≤ +85°C
POK High, -40°C ≤ T_A ≤ +85°C
Shutdown Current
ENABLE Low
Current Limit Threshold
Dropout Resistance
2.4 V ≤ V_IN ≤ 5.5 V,
-40°C ≤ T_A ≤ +85°C
Operating Frequency
F_OSC
Note 1: VFB, ENABLE pin input current specification is guaranteed by design.
MIN
2.4
0.588
0.975
-40
0.0
1.4
2.0
EP53F8QI
TYP
2.2
2.1
MAX
5.5
UNITS
V
V
V
0.600 0.612
V
0.0031
0.420
0.0012
1.5
2.025
%/V
%/A
%/°C
V/ms
+40
nA
0.4
V
V_IN
V
111
%
102
%
92
%
90
%
0.15
0.4
V
500
nA
14
μA
3.2
A
250
360
mΩ
4
MHz
©Enpirion 2009 all rights reserved, E&OE
01542
4
4/3/2009
www.enpirion.com
Rev:A