EUTECH EUP7522

Preliminary
EUP7522
Dual, 600mA LDO Regulator
DESCRIPTION
FEATURES
The EUP7522 is an efficient, precise dual-channel CMOS
LDO regulator with very-low dropout voltage and low
ground current. Both regulator outputs are capable of
sourcing 600mA of output current.
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Low Quiescent Current (Typically 130μA)
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Guaranteed 600mA Output Current
Low Dropout Voltage:600mV at 600mA
Wide Operating Voltage Ranges : 2.5V to 5.5V
Ultra-Fast Transient Response
Tight Load and Line Regulation
Current Limiting Protection
Thermal Shutdown Protection
Only low-ESR Ceramic Capacitors Required for
Stability
Available in SOP-8 Package
RoHS Compliant and 100% Lead (Pb)-Free
The EUP7522’s performance is optimized for CD/DVD
-ROM, CD/RW or wireless communication supply
applications, The EUP7522 regulators are stable with
output capacitors as low as 2.2 μF. Key features include
current limit, thermal shutdown, fast transient response,
high output accuracy, and high ripple rejection ratio.
The EUP7522 regulator is available in a fixed 3.3V/2.5V
output voltage configuration.
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APPLICATIONS
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Typical Application Circuit
Figure 1.
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CD/DVD-ROM, CD/RW
Wireless LAN Card/Keyboard/Mouse
Battery-Powered Equipment
XDSL Router
Preliminary
Pin Configurations
Part
Number
Pin Configurations
EUP7522
SOP-8
Pin Description
PIN
PIN NAME
1
VOUT1
2,3
VIN
4
VOUT2
5,6,7,8
GND
DESCRIPTION
Regulator A Output
Power Input
Regulator B Output
Ground
Block Diagram
Figure 2.
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EUP7522
Preliminary
EUP7522
Ordering Information
Order Number
Package Type
EUP7522-3.3/2.5DIR1
SOP-8
EUP7522-3.3/2.5DIR0
SOP-8
Marking
xxxx
EUP7522
I
xxxx
EUP7522
I
* For other output voltage options, contact EUT marketing.
EUP7522 □□/□□ □ □ □ □
Lead Free Code
1: Lead Free 0: Lead
Packing
R: Tape & Reel
Operating temperature range
I: Industry Standard
Package Type
D: SOP
Output Voltage Option
DS7522 Ver 0.5 March. 2006
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Operating Temperature range
-40 °C to 85°C
-40 °C to 85°C
EUP7522
Preliminary
Absolute Maximum Ratings
▓
▓
▓
▓
▓
▓
Supply Input Voltage --------------------------------------------------------------------------------------- 6V
Package Thermal Resistance
SOP-8, θJC -------------------------------------------------------------------------------------------------- 15.7°C/W
Lead Temperature (Soldering,10 sec .) -------------------------------------------------------------------- 260°C
Junction Temperature ---------------------------------------------------------------------------------------- 150°C
Storage Temperature Rang, Tstg -------------------------------------------------------------------------- -65°C to 150°C
ESD Susceptibility
HBM ---------------------------------------------------------------------------------------------------------- 2kV
MM ----------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions
▓
▓
Supply Input Voltage -------------------------------------------------------------------------------------- 2.5V to 5.5V
Junction Temperature -------------------------------------------------------------------------------------
-40°C to 125°C
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature, CIN=2.2µF, COUT1=2.2µF , COUT2=2.2µF,
TJ=0 to 125°C. Typical values refer to TJ=25°C.
Symbol
VIN
OTS
TC
IQ
Parameter
Conditions
Input voltage
Over Temperature
Shutdown
Over Temperature
Shutdown Hysteresis
Output Voltage
Temperature Coefficient
Quiescent Current
Regulator 1
VOUT Output voltage
EUP7522
Min
Typ
Max.
2.5
Hysteresis
5.5
°C
20
°C
40
ppm/°C
360
IOUT1=0mA, IOUT2=0mA
130
200
3.3
VOUT+2%
ILIMIT
Circuit Current Limit
VIN=VOUT+ 1V
IOUT
Load Current
VIN=VOUT+ 1V
VOUT-2%
V
150
IOUT1=300mA, IOUT2=300mA
VIN=5V
Unit
900
µA
V
mA
600
mA
REGLINE Line Regulation
VOUT+ 1V<Vcc <5.5V, IOUT=1mA
1.5
4
mV
REGLOAD Load Regulation
VIN=VOUT+ 1V, 0mA< IOUT< IMAX
20
40
mV
PSRR
Ripple Rejection
F ≤ 1kHz, 1Vpp at IOUT=50mA
62
dB
VDROP
Dropout Voltage (Note 1)
IOUT=600mA
600
mV
COUT
Output Capacitor
2.2
µF
ESR
DS7522 Ver 0.5 March. 2006
0.01
4
0.1
1
Ohm
EUP7522
Preliminary
Electrical Characteristics( Cont.)
Unless otherwise noted these specifications apply over full temperature, CIN=2.2µF, COUT1=2.2µF , COUT2=2.2µF,
TJ=0 to 125°C. Typical values refer to TJ=25°C.
Symbol
Parameter
Conditions
EUA7522
Min
Typ
Max.
Unit
Regulator 2
VOUT
Output voltage
VIN=5V
ILIMIT
Circuit Current Limit
VIN=VOUT+ 1V
IOUT
Load Current
VIN=VOUT+ 1V
VOUT-2%
2.5
VOUT+2%
900
V
mA
600
mA
REGLINE Line Regulation
VOUT+ 1V<Vcc <3.5V, IOUT=1mA
1.5
4
mV
REGLOAD Load Regulation
VIN=VOUT+ 1V, 0mA< IOUT< IMAX
20
40
mV
PSRR
Ripple Rejection
F ≤ 1kHz, 1Vpp at IOUT=50mA
62
dB
VDROP
Dropout Voltage (Note 1)
IOUT=600mA
600
mV
COUT
Output Capacitor
2.2
µF
ESR
0.01
0.1
1
Note 1: dropout voltage definition : VIN-VOUT when VOUT is 2% below the value of VOUT for VIN=VOUT+ 1V
DS7522 Ver 0.5 March. 2006
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Ohm
Preliminary
Typical Operating Characteristics
DS7522 Ver 0.5 March. 2006
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EUP7522
Preliminary
DS7522 Ver 0.5 March. 2006
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EUP7522
EUP7522
Preliminary
Power Dissipation and Junction Temperature
Application Information
Specified regulator operation is assured to a junction
temperature of 125°C; the maximum junction
temperature should be restricted to 125°C under normal
operating conditions. This restriction limits the power
dissipation the regulator can handle in any given
application. To ensure the junction temperature is within
acceptable limits, calculate the maximum allowable
dissipation, PD(max), and the actual dissipation, PD, which
must be less than or equal to PD(max)
The maximum-power-dissipation limit is determined
using the following equation:
Input Capacitor
A minimum input capacitance of 2.2µF is required
between the EUP7522 input pin and ground (the amount
of the capacitance may be increased without limit).This
capacitor must be located a distance of not more than
1cm from the input pin and returned to a clean analog
ground.
Any good quality ceramic, tantalum, or film capacitor
may be used at the input. If a tantalum capacitor is used
at the input, it must be guaranteed by the manufacturer to
have a surge current rating sufficient for the application.
T max − T
A
= J
D(max)
R
P
No-Load Stability
θJA
The EUP7522 will remain stable and in regulation with
no external load. This is specially important in CMOS
RAM keep-alive applications.
Where:
TJMAX is the maximum allowable junction temperature.
RθJA is the thermal resistance junction-to-ambient for the
package
TA is the ambient temperature.
Output Capacitance
The EUP7522 is specifically designed to employ ceramic
output capacitors as low as 2.2µF. Ceramic capacitors
below 10µF offer significant cost and space savings,
along with high frequency noise filtering. Higher values
and other types and of capacitor may be used, but their
equivalent series resistance (ESR) should be maintained
below 0.5Ω. Ceramic capacitor of the value required by
the EUP7522 are available in the following dielectric
types: Z5U, Y5V, X5R, and X7R. The Z5U and Y5V
types exhibit a 50% or more drop in capacitance value as
their temperature increase from 25°C, an important
consideration. The X5R generally maintain their
capacitance value within ± 20%. The X7R type are
desirable for their tighter tolerance of 10% over
temperature.
DS7522 Ver 0.5 March. 2006
The regulator dissipation is calculated using:
PD=(VI-VO) × IO
Power dissipation resulting from quiescent current is
negligible. Excessive power dissipation triggers the
thermal protection circuit.
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EUP7522
Preliminary
Packaging Information
X
Y
Z
Standard Solder Map
Symbols
A
B
C
D
E
H
F
L1
L2
M
N
Dimension in Millimeters
Min.
Max.
4.80
5.00
5.80
6.20
3.80
4.00
1.194
1.346
1.45
1.55
0.00
0.10
0.33
0.51
0.19
0.25
0.40
1.27
0°
8°
40°
50°
Dimension in Inches
Min.
Max.
0.189
0.197
0.228
0.244
0.150
0.157
0.047
0.053
0.057
0.061
0.000
0.004
0.013
0.020
0.007
0.010
0.016
0.050
0°
8°
40°
50°
8 – Lead SOP Plastic Package
DS7522 Ver 0.5 March. 2006
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