AME1084 AME [Analog Microelectronics], AME1084 Datasheet

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AME1084

Manufacturer Part Number
AME1084
Description
5A Low Dropout Positive Voltage Regulator
Manufacturer
AME [Analog Microelectronics]
Datasheet

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AME1084
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The AME1084 is a 5A low-dropout positive voltage regu-
lator. It is available in fixed and adjustable output volt-
age versions. Overcurrent and thermal protection are
integrated onto the chip. Output current will limit as it
reaches the pre-set current or temperature limit. At full
rated output current the dropout voltage is 1.4V (max.).
AME1084 series regulators provide excellent regulation
over line, load and temperature variations.
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General Description
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Functional Block Diagram
Applications
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
5V to 3.3V Voltage Converter
Battery Charger
Protection
Amplifier
Thermal
Limiting
Current
Analog Microelectronics, Inc.
A m p .
Error
Figure 1
Reference
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A D J / G N D
Output
Input
4.75V to 5.25V
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Key Features
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Typical Application
Low dropout voltage
Adjustable or 3.3V fixed voltage
Line regulation typically 0.015%
Load regulation typically 0.05%
Adjust pin (ADJ) current less than 90 A
Overcurrent protection
Thermal protection
Available in TO-220, TO-263, TO-252
10 F Tan
Positive Voltage Regulator
V
I N
AME1084
Figure 2
G N D
1.4V at 5A
5A Low Dropout
V
O U T
10 F Tan
1
Load

Related parts for AME1084

AME1084 Summary of contents

Page 1

... Analog Microelectronics, Inc. AME1084 General Description The AME1084 low-dropout positive voltage regu- lator available in fixed and adjustable output volt- age versions. Overcurrent and thermal protection are integrated onto the chip. Output current will limit as it reaches the pre-set current or temperature limit. At full rated output current the dropout voltage is 1 ...

Page 2

... Analog Microelectronics, Inc. AME1084 Pin Configuration AME1084 TO-220 Front View AME 1084 TO-263-2 Front View To-252 Front View TO-263-3 Front View ...

Page 3

... Analog Microelectronics, Inc. AME1084 Ordering Information Num rking 1084 1084A 1084 1084B 1084 1084CCB T CCB 1084 1084DCB T DCB T ...

Page 4

... Analog Microelectronics, Inc. AME1084 Absolute Maximum Ratings Parameter Input Voltage Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient) Operating Junction Temperature Range Storage Temperature Range Lead Temperature (10 sec) 4 Positive Voltage Regulator Symbol Maximum TO-220 3 TO-252 5 JC TO-263 3 TO-220 ...

Page 5

... Analog Microelectronics, Inc. AME1084 Electrical Characteristics 1. 1084AXXX Parameter Symbol Reference voltage V (adjustable voltage) Line regulation Reg Load regulation Reg Dropout voltage OUT REF Current limit Temperature Coefficient Adjust pin current Adjust pin current change Temperature stability Minimum load current ...

Page 6

... R1 and R2 should be set to conduct 10mA (minimum output load). The output voltage is given by the following equation OUT REF R1 On fixed versions of AME1084, the voltage di- vider is provided internally ( ...

Page 7

... Analog Microelectronics, Inc. AME1084 5. Thermal consideration The AME1084 series contain thermal limiting circuitry designed to protect itself for over- temperature conditions. Even for normal load conditions, maximum junction temperature ratings must not be exceed. As mention in thermal protection section, we need to con- sider all sources of thermal resistance be- tween junction and ambient ...

Page 8

... Analog Microelectronics, Inc. AME1084 Advanced Applications 20mW is ballast resistance The inter - connection of #18 wire could act as ballast resistance REF ...

Page 9

... Analog Microelectronics, Inc. AME1084 Advanced Applications (Cont Optional for improved ripple rejection 10 F Figure 8 Regulator with Reverse Diode Protection Zener diode or voltage reference + breakdown voltage of Zener diode) ...

Page 10

... Analog Microelectronics, Inc. AME1084 Performance Characteristics Drop-out Voltage vs. Load Current 1.30 1.25 1.20 1.15 1.10 1.05 1.00 0.95 0. Load Current ( Output Short circuit Current vs Input/Output Differential Voltage Input/Output Differential Voltage(V) 5A Low Dropout ...

Page 11

... Analog Microelectronics, Inc. AME1084 External Resistor Divider Table for Customized Voltage R1(ohm) 100 102 105 Vout R2(ohm)=(Vout-1.25)*R1/(1.25+50u*R1) 1.25 0.000 0.000 0.000 1.30 3.984 4.063 4.182 1.35 7.968 8.127 8.365 1.40 11.95 12.19 12.55 1.45 15.94 16.25 16.73 1.50 19.92 20.32 20.91 1.55 23.90 24.38 25.09 1.60 27.89 28.44 29.28 1.65 31.87 32.51 33.46 1.70 35.86 36.57 37.64 1.75 39.84 40.63 41.82 1.80 43.82 44.70 46.01 1.85 47.81 48.76 50.19 1.90 51.79 52.82 54.37 1.95 55.78 56.89 58.55 2.00 59.76 60.95 62.74 2.05 63.75 65.01 66.92 2.10 67.73 69.08 71.10 2.15 71.71 73.14 75.28 2.20 75.70 77.21 79.47 2.25 79.68 81.27 83.65 2.30 83.67 85.33 87.83 2.35 87.65 89.40 92.01 2.40 91.63 93.46 96.20 2.45 95.62 97.52 100.4 2.50 99.60 101.6 104.6 2.55 103.6 105.6 108.7 2.60 107.6 109.7 112.9 2.65 111.6 113.8 117 ...

Page 12

... Analog Microelectronics, Inc. AME1084 External Resistor Divider Table for Customized Voltage R1(ohm) 100 102 Vout 3.15 151.4 154.4 3.20 155.4 158.5 3.25 159.4 162.5 3.30 163.3 166.6 3.35 167.3 170.7 3.40 171.3 174.7 3.45 175.3 178.8 3.50 179.3 182.9 3.55 183.3 186.9 3.60 187.3 191.0 3.65 191.2 195.0 3.70 195.2 199.1 3 ...

Page 13

... Analog Microelectronics, Inc. AME1084 Package Dimension TO-220 TO-263-3 5A Low Dropout Positive Voltage Regulator MILLIMETERS SYMBOLS MIN MAX MIN A 4.06 4.83 0.160 b 0.63 1.02 0.025 C1 0.35 0.60 0.0138 D 14.22 14.99 0.056 E 9.66 10.54 0.385 e - 2.79 e1 4.83 5.33 0.190 e3 1.14 1.40 0.045 f 1.14 1.40 0.045 H1 5.94 6.55 0.234 K 2.29 2.92 0.090 CP 3.71 3.96 0.146 Q 2.62 2.87 0.103 L 12.70 14.27 0.500 1.14 1.52 0.0449 R 6.17 REF. Notes : 1. Dimension C1 apply for tin plate finish. ...

Page 14

... Analog Microelectronics, Inc. AME1084 Package Dimension TO-263 Low Dropout Positive Voltage Regulator MILLIMETERS SYMBOLS MIN MAX A 9.65 10.41 B 8.28 9.65 C 4.06 4.83 D 0.51 1.02 E 1.14 1. 2.54 H 14.61 15.88 K 1.02 1.68 L 0.00 0.97 M 2.49 2.74 N 0.43 0.58 P 2.29 2. 2.41 2.67 W 0.254 0.508 * : Typical value NOTES : 1. CONTROLLING DIMENSION : MILLIMETERS. 2MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH ...

Page 15

... Analog Microelectronics, Inc. AME1084 Package Dimension TO-252 (DPAK) TO-252 (DPAK) Positive Voltage Regulator MILLIMETERS SYMBOLS MIN MAX A 0.45 0.58 B 1.60 1. 0.45 0.60 E 6.40 6.80 F 5.40 5.80 G 2. 0.97 K 5.20 5.50 L 0.89 2. Typical value NOTES : 1. CONTROLLING DIMENSION : MILLIMETERS. 2. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL ...

Page 16

E-Mail: info@analogmicro.com These products of Analog Microelectronics, Inc. are not authorized for use as critical components in life- support devices or systems, without the express written approval of the president Analog Microelectronics, Inc. reserves the right to make changes in ...

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