AMS1505CM Advanced Monolithic Systems, AMS1505CM Datasheet

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AMS1505CM

Manufacturer Part Number
AMS1505CM
Description
Manufacturer
Advanced Monolithic Systems
Datasheet

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AMS1505CM
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T
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Part Number:
AMS1505CM
Manufacturer:
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Quantity:
20 000
Part Number:
AMS1505CMA
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AMS
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20 000
FEATURES
• Adjustable or Fixed Output
• Output Current of 5A
• Low Dropout, 500mV at 5A Output Current
• Fast Transient Response
• Remote Sense
GENERAL DESCRIPTION
power the new generation of microprocessors. The dropout voltage of the device is 100mV at light loads and rising to 500mV
at maximum output current. A second low current input voltage 1V or greater then the output voltage is required to achieve
this dropout. The AMS1505 can also be used as a single supply device.
variations due to load changes. The typical load regulation, measured at the Sense pin, for a load current step of 100mA to 5A
is less than 1mV.
The AMS1505 series has fast transient response. The Adjust pin is brought out on fixed devices. To further improve the
transient response the addition of a small capacitor on the Adjust pin is recommended.
The AMS1505 series are ideal for generating processor supplies of 2V to 3V on motherboards where both 5V and 3.3V
supplies are available.
The AMS1505 devices are offered in 5 lead TO-220, 5L TO-263 (plastic DD) and 5L TO-252 (DPAK) packages.
ORDERING INFORMATION:
The AMS1505 series of adjustable and fixed low dropout voltage regulators are designed to provide 5A output current to
New features have been added to the AMS1505: a remote Sense pin is brought out virtually eliminating output voltage
AMS1505CM
AMS1505CM-1.5 AMS1505CT-1.5
AMS1505CM-2.5 AMS1505CT-2.5
AMS1505CM-2.85 AMS1505CT-2.85 AMS1505CD-2.85
AMS1505CM-3.0 AMS1505CT-3.0
AMS1505CM-3.3 AMS1505CT-3.3
AMS1505CM-3.5 AMS1505CT-3.5
AMS1505CM-5.0 AMS1505CT-5.0
1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V
Advanced
Monolithic
5 LEAD TO-263
Systems
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com
PACKAGE TYPE
AMS1505CT
5 LEAD TO-220
AMS1505CD
AMS1505CD-1.5
AMS1505CD-2.5
AMS1505CD-3.0
AMS1505CD-3.3
AMS1505CD-3.5
AMS1505CD-5.0
5 LEAD TO-252 TEMPERATURE RANGE
OPERATING JUNCTION
5A LOW DROPOUT VOLTAGE REGULATORS
APPLICATIONS
• High Current Regulators
• Post Regulators for Switching Supplies
• Microprocessor Supply
• Adjustable Power Supply
• Notebook/Personal Computer Supplies
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
Phone (925) 443-0722 Fax (925) 443-0723
AMS1505
RoHS compliant
PIN CONNECTIONS
FRONT VIEW
5 LEAD TO-263
FRONT VIEW
5 LEAD TO-220
5 LEAD TO-252
FRONT VIEW
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
Vpower
Vcontrol
OUTPUT
ADJUST/GND
SENSE
OUTPUT
Vpower
Vcontrol
ADJUST/GND
SENSE
OUTPUT
V
V
SENSE
ADJUST/GND
POWER
CONTROL

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AMS1505CM Summary of contents

Page 1

... The AMS1505 devices are offered in 5 lead TO-220, 5L TO-263 (plastic DD) and 5L TO-252 (DPAK) packages. ORDERING INFORMATION: PACKAGE TYPE 5 LEAD TO-263 5 LEAD TO-220 AMS1505CM AMS1505CT AMS1505CM-1.5 AMS1505CT-1.5 AMS1505CM-2.5 AMS1505CT-2.5 AMS1505CM-2.85 AMS1505CT-2.85 AMS1505CD-2.85 AMS1505CM-3.0 AMS1505CT-3.0 AMS1505CM-3.3 AMS1505CT-3.3 AMS1505CM-3.5 AMS1505CT-3.5 AMS1505CM-5.0 AMS1505CT-5.0 Advanced Monolithic Systems, Inc. www.advanced-monolithic.com 5A LOW DROPOUT VOLTAGE REGULATORS APPLICATIONS • High Current Regulators • ...

Page 2

... AMS1505 Current Limit AMS1505/-1.5/-2.5/ -2.85/-3.0/-3.3/-3.5/-5.0 Ripple Rejection AMS1505/-1.5/-2.5/ -2.85/-3.0/-3.3/-3.5/-5.0 Thermal Regulation AMS1505 Thermal Resistance Junction-to-Case Advanced Monolithic Systems, Inc. www.advanced-monolithic.com (Note 1) 7V Thermal Resistance 13V TO-220 package TO-252 package TO-263 package 0°C to 125°C *Minimum pad size is 0.038in 0°C to 150°C ** With package soldering to 0.5in - 65° ...

Page 3

... For fixed voltage devices the Adjust pin is also brought out to allow the user to add a bypass capacitor. GND (Pin 2/5): For fixed voltage devices this is the bottom of the resistor divider that sets the output voltage. Advanced Monolithic Systems, Inc. www.advanced-monolithic.com = +25°C unless otherwise specified. J Conditions Note 2 ...

Page 4

... This device can hold 1% accuracy over the full temperature range and load current range, Advanced Monolithic Systems, Inc. www.advanced-monolithic.com guaranteed, when combined with ratiometrically accurate internal divider resistors and operating with an input/output differential of well under 1V ...

Page 5

... When the adjustment terminal is bypassed to improve the ripple rejection, the requirement for an output capacitor increases. The Adjust pin is brought out on the fixed voltage device specifically Advanced Monolithic Systems, Inc. www.advanced-monolithic.com to allow this capability. To ensure good transient response with heavy load current changes capacitor values on the order of 100µF are used in the output of many regulators ...

Page 6

... Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Thermal resistance specification for both the Control Section and the Power Transistor are given in the electrical characteristics. ...

Page 7

... OUTPUT CURRENT (A) Reference Voltage vs Temperature 1.258 1.256 1.254 1.252 1.250 1.248 1.246 1.244 1.242 -50 - 100 125 150 TEMPERATURE (° C) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Minimum Control Voltage 125° 25° ...

Page 8

... PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 0.460-0.500 (11.684-12.700) 0.980-1.070 (24.892-27.178) 0.520-0.570 (13.208-14.478) 0.062-0.072 (1.570-1.830) 0.057-0.077 (1.447-1.955) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com 5 LEAD TO-220 PLASTIC PACKAGE (T) 0.149-0.153 0.170-0.190 0.387-0.413 (3.77-3.87) (4.32-4.82) (9.83-10.49) DIA 0.240-0.260 (6.100-6.600) ...

Page 9

... PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted 0.380-0.410 (9.65-10.41) 0.025 (0.635) TYP 0.045 (1.14) TYP Advanced Monolithic Systems, Inc. www.advanced-monolithic.com 5 LEAD TO-252 PLASTIC PACKAGE (D) 0.255-0.265 (6.48-6.73) 0.206-0.214 0.087-0.094 (2.21-2.39) (5.23-5.44) 7.0° 0.235-0.245 (5.969-6.223) 0.045-0.060 (1.14-1.52) 0.020 (0.51) TYP AMS1505 (Continued). 0.018-0.023 (0 ...

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