EP5382Q/EP5362Q/EP5352Q
Y5V or equivalent dielectric
formulations lose capacitance with frequency,
bias, and with temperature, and are not
suitable for switch-mode DC-DC converter
input and output filter applications.
formulation.
ENABLE
VSense
Vout
VOUT
VIN
Vin
2.2uF
4.7uF
10μF
Ra
Rb
VFB
VS0
VS1
VS2
The output capacitance requirement is a
GND
minimum of 10uF.
designed to be stable with up to 60uF of total
output capacitance without requiring
The control loop is
modification of the control loop. Capacitance
above the 10uF minimum should be added if
the transient performance is not sufficient using
the 10uF. Enpirion recommends a low ESR
MLCC type capacitor be used. The output
capacitor must use a X5R or X7R or equivalent
Figure 5. External Divider.
The output voltage is selected by the following
formula:
Ra
Rb
VOUT = 0.603V
dielectric formulation.
Y5V or equivalent
dielectric formulations lose capacitance with
frequency, bias, and temperature and are not
suitable for switch-mode DC-DC converter
input and output filter applications.
Ra must be chosen as 200KΩ to maintain loop
gain. Then Rb is given as:
1.2x105
Cin
=
Ω
Rb
Manufacturer
Part #
Value
WVDC Case Size
VOUT − 0.603
Murata
GRM21BR71A225KA01L
GRM31MR71A225KA01L
GRM21BR70J225KA01L
2.2uF
10V
6.3V
10V
6.3V
10V
0805
1206
0805
Dynamically Adjustable Output
Panasonic
ECJ-2FB1A225K
ECJ-3YB1A225K
ECJ-2YB0J225K
0805
1206
0805
The EP53x2Q are designed to allow for
dynamic switching between the predefined VID
voltage levels The inter-voltage slew rate is
optimized to prevent excess undershoot or
overshoot as the output voltage levels
transition. The slew rate is identical to the soft-
start slew rate of 3.3mV/uS.
Taiyo Yuden
LMK107BJ225KA-T
LMK212BJ225KG-T
0603
0805
Cin
Manufacturer Part #
Value
WVDC Case Size
Murata
GRM219R61A475KE19D
4.7uF
10V
0805
1206
0805
1206
GRM319R61A475KA01D
GRM219R60J475KE01D
GRM31MR60J475KA01L
6.3V
Dynamic transitioning between internal VID
settings and the external divider is not allowed.
Panasonic
Taiyo Yuden
ECJ-2FB1A475K
ECJ-3YB1A475K
ECJ-2FB0J475K
ECJ-3YB0J475K
10V
0805
1206
0805
1206
6.3V
Input and Output Capacitors
LMK212BJ475KG-T
LMK316BJ475KD-T
JMK212BJ475KD-T
10V
0805
1206
0805
6.3V
The input capacitance requirement is as
follows:
Cout
Manufacturer
Part #
Value
WVDC Case Size
Murata
GRM219R60J106KE19D
GRM319R60J106KE01D
10uF
6.3V
6.3V
6.3V
0805
1206
EP5352Q, EP5362Q = 2.2uF
EP5382Q = 4.7uF
Panasonic
ECJ-2FB0J106K
ECJ-3YB0J106K
0805
1206
Taiyo Yuden
JMK212BJ106KD-T
JMK316BJ106KF-T
0805
1206
Enpirion recommends that a low ESR MLCC
capacitor be used. The input capacitor must
use a X5R or X7R or equivalent dielectric
©Enpirion 2009 all rights reserved, E&OE
9
www.enpirion.com
03132
4/28/2009
Rev:B
ENPIRION [ ENPIRION, INC. ]
