EP5358HUI Enpirion, EP5358HUI Datasheet - Page 13

• Manufacturer Part Number: EP5358HUI
• Description: DC/DC Switching Converters 500mA Sync Buck Conv Int Inductor, Hi VID
• Manufacturer: Enpirion

Specifications of EP5358HUI

• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• Efficiency: 93 %
• Input / Supply Voltage (max): 6 V
• Input / Supply Voltage (min): - 0.3 V
• Load Regulation: 0.48 %
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Output Current: 500 mA
• Switching Frequency: 5 MHz
• Package / Case: QFN-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For a given Rs Value, the VOUT
settings is determined by the following
equations:
EP5358LUI:
EP5358HUI:
NOTE: The amount of adjustment is limited to
approximately 15% of the nominal VID setting.
NOTE: Adjusting VOUT using this method will
increase the tolerance of the output voltage.
The larger the adjustment, the greater the
increase in tolerance.
Input Filter Capacitor
For I
For I
0402 capacitor case size is acceptable.
The input capacitor must use a X5R or X7R or
equivalent dielectric formulation.
equivalent
capacitance with frequency, bias, and with
Enpirion 2010 all rights reserved, E&OE
03541
LOAD
LOAD
VOUT
VOUT
> 500mA C
500mA, C
NEW
NEW
dielectric
VOUT
VOUT
IN
IN
OLD
= 4.7uF.
OLD
= 2.2uF












formulations
Rs
356
Rs
711
H
L






NEW
1
1






Volts
for VID
Volts
Y5V or
lose
09/23/2010
13
temperature, and are not suitable for switch-
mode DC-DC converter input filter applications.
Output Filter Capacitor
For VIN
For VIN > 4.3V, C
2x10µF 0603 MLCC capacitors (for any
allowed VIN).
The maximum output filter capacitance next to
the output pins of the device is 60µF low ESR
MLCC capacitance. V
the last output filter capacitor next to the
EP5358xUI.
Additional bulk capacitance for decoupling and
bypass can be placed at the load as long as
there is sufficient separation between the V
Sense point and the bulk capacitance.
Excess total capacitance on the output (Output
Filter + Bulk) can cause an over-current
condition at startup. Refer to the section on
Soft-Start for the maximum total capacitance
on the output.
The output capacitor must use a X5R or X7R
or equivalent dielectric formulation.
equivalent
capacitance
temperature and are not suitable for switch-
mode
applications.
Ripple performance can be improved by using
DC-DC
4.3V, C
dielectric
with
OUT_MIN
OUT_MIN
converter
EP5358LUI/EP5358HUI
frequency,
OUT
= 10uF 0603 MLCC.
= 10uF 0805 MLCC.
has to be sensed at
formulations
www.enpirion.com
output
bias,
Y5V or
filter
lose
Rev: D
and
OUT