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Cherry Semiconductor Corporation

CS52510-1 Datasheet Preview

CS52510-1 Datasheet

10A LDO 5-Pin Adjustable Linear Regulator

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CS52510-1
10A LDO 5-Pin Adjustable Linear Regulator
Description
This new very low dropout regula-
tor is designed to power the next
generation of advanced micropro-
cessor. To achieve very low
dropout, the internal pass transistor
is powered separately from the con-
trol circuitry. Furthermore, with the
control and power inputs tied
together, this device can be used in
single supply configuration and
still offer a better dropout voltage
than conventional PNP-NPN based
LDO regulators. In this mode the
dropout is determined by the mini-
mum control voltage.
It is supplied in a five-terminal
TO-220 package, which allows for
the implementation of a remote-
sense pin permitting very accurate
regulation of output voltage direct-
ly at the load, where it counts,
rather than at the regulator. This
remote sensing feature virtually
eliminates output voltage variations
due to load changes and resistive
voltage drops. Typical load regula-
tion measured at the sense pin is
1mV for an output voltage of 2.5V
with a load step of 10mA to 10A.
The very fast transient loop
response easily meets the needs of
the latest microprocessors. In addi-
tion, a small capacitor on the Adjust
pin will further improve the tran-
sient capabilities.
Internal protection circuitry pro-
vides for Òbust-proofÓ operation,
similar to three-terminal regulators.
This circuitry, which includes over-
current, short circuit, supply
sequencing and overtemperature
protection, will self protect the reg-
ulator under all fault conditions.
The CS52510-1 is ideal for generat-
ing a secondary 2 - 2.5V low voltage
supply on a motherboard where
both 5V and 3.3V are already
available.
Applications Diagram
Features
s 1.25V to 5V VOUT at 10A
s VPOWER Dropout < 0.65V @
10A
s VCONTROL Dropout < 1.25V @
10A
s 1.5% Trimmed Reference
s Fast Transient Response
s Remote Voltage Sensing
s Thermal Shutdown
s Current Limit
s Short Circuit Protection
s Backwards Compatible with
3-pin Regulators
Package Options
5 Lead TO-220
5.0V
3.3V
10mF
10V
VCONTROL VOUT
CS52510-1
VPOWER VSENSE
Adjust
100mF
5V
0.1mF
5V
2.5V@10A
124
1%
124
1%
Load
300mF
5V
1. VSENSE
2. Adjust
1 3. VOUT
4. VCONTROL
5. VPOWER
Tab = VOUT
Rev. 3/17/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
1 A ¨ Company




Cherry Semiconductor Corporation

CS52510-1 Datasheet Preview

CS52510-1 Datasheet

10A LDO 5-Pin Adjustable Linear Regulator

No Preview Available !

Absolute Maximum Ratings
VPOWER Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
VCONTROL Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0¡C ² TJ ² 150¡C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65¡C to +150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 sec. max, 260¡C peak
ESD Damage Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Electrical Characteristics: 0¡C ² TA ² 70¡C, 0¡C ² TJ ² 150¡C, VSENSE = VOUT and VAdj = 0V unless otherwise specified.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Reference Voltage
Line Regulation
Load Regulation
(Note 3)
Minimum Load Current
(Note 1)
Control Pin Current
(Note 2)
Adjust Pin Current
Current Limit
Short Circuit Current
Ripple Rejection
(Note 3)
Thermal Regulation
VCONTROL Dropout Voltage
(Minimum VCONTROL-VOUT)
(Note 4)
VPOWER Dropout Voltage
(Minimum VPOWER-VOUT)
(Note 4)
RMS Output Noise
Temperature Stability
Thermal Shutdown (Note 5)
Thermal Shutdown Hysteresis
VCONTROL Supply Only
Output Current
VCONTROL = 2.75V to 12V, VPOWER = 2.5V to 5.5V,
10mA ² IOUT ² 10A
VCONTROL = 2.5V to 12V, VPOWER = 1.75V to 5.5V,
IOUT = 10mA
VCONTROL = 2.75V, VPOWER= 2.5V,
IOUT = 10mA to 10A, with remote sense
VCONTROL = 5V, VPOWER = 3.3V, ÆVOUT = +1%
VCONTROL = 2.75V, VPOWER = 2.5V, IOUT = 100mA
VCONTROL = 2.75V, VPOWER = 2.5V, IOUT = 4A
VCONTROL = 2.75V, VPOWER = 1.75V, IOUT = 4A
VCONTROL = 2.75V, VPOWER = 2.5V, IOUT = 10A
VCONTROL = 2.75V, VPOWER =2.5V, IOUT = 10mA
VCONTROL = 2.75V, VPOWER = 2.5V, ÆVOUT = -1.5%
VCONTROL = 2.75V, VPOWER = 2.5V, VOUT = 0V
VCONTROL= VPOWER = 3.25V Avg,
VRIPPLE = 1VP-P @120Hz, IOUT = 4A, CADJ = 0.1µF
30ms Pulse, TA = 25¡C
VPOWER = 2.5V, IOUT = 100mA
VPOWER = 2.5V, IOUT = 1A
VPOWER = 2.5V, IOUT = 2.75A
VPOWER = 2.5V, IOUT = 4A
VPOWER = 2.5V, IOUT = 10A
VCONTROL = 2.75V, IOUT = 100mA
VCONTROL = 2.75V, IOUT = 1A
VCONTROL = 2.75V, IOUT = 2.75A
VCONTROL = 2.75V, IOUT = 4A
VCONTROL = 2.75V, IOUT = 10A
Freq = 10Hz to 10kHz, TA = 25¡C
VCONTROL = 13V, VPOWER not connected,
VADJUST = VOUT = VSENSE = 0V
1.234
(-1.5%)
1.253 1.272
(+1.5%)
.02 .20
V
%
.04 .20 %
5 10 mA
6 10 mA
30 60 mA
33 70 mA
80 180 mA
60 120 µA
10.1 11.0
A
8.0 9.5
A
60 80
dB
0.002
%/W
1.00 1.15
1.00 1.15
1.00 1.15
1.00 1.15
1.25 1.40
V
V
V
V
V
.10 .15 V
.15 .20 V
.20 .30 V
.26 .40 V
.65 .80 V
0.003
0.5
%VOUT
%
150 180 210 ¡C
25 ¡C
50 mA
2


Part Number CS52510-1
Description 10A LDO 5-Pin Adjustable Linear Regulator
Maker Cherry Semiconductor Corporation
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CS52510-1 Datasheet PDF






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