ALD18 datasheet(3/20 Pages) ASTEC

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Technical Reference Notes

ALD12/18/20/25 Series

(Single Output 16

th Brick)

MODEL: ALD12/18/20/25 SERIES

SHEET 3 OF 20

AUGUST 17, 2005 – REVISION C

Electrical Specifications (continued)

OUTPUT SPECIFICATIONS

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set point

VIN = VIN, MIN to VIN,MAX;

IO =IO,Max

5V0 (A)

3V3 (F)

2V5 (G)

1V8 (Y)

1V5 (M)

1V2 (K)

VO,SET

4.930

3.260

2.465

1.770

1.470

1.180

5.000

3.300

2.500

1.800

1.500

1.200

5.070

3.340

2.535

1.830

1.530

1.220

Vdc

Output Regulation

Line: VIN = VIN, Min to VIN, Max

Load: IO = IO, Min to IO, Max

Temperature: TA = -40 ºC to

+85ºC

All

0.1

0.3

0.4

0.8

%Vo

Ripple and Noise

Peak-to-Peak: (5Hz to 20MHz)

All

100

mVp-p

Output Current

5V0 (A)

3V3 (F)

2V5 (G)

1V8 (Y)

1V5 (M)

1V2 (K)

External Load Capacitance

Capacitor ESR

All

10,000

µF

Ω

Output Current-limit Inception

VOUT = 90% VO,SET

(Autorecovery)

5V0 (A)

3V3 (F)

2V5 (G)

1V8 (Y)

1V5 (M)

1V2 (K)

13.0

19.5

21.5

26.5

Over Voltage Range

(Autorecovery)

5V0 (A)

3V3 (F)

2V5 (G)

1V8 (Y)

1V5 (M)

1V2 (K)

5.9

3.9

3.0

2.1

1.8

1.4

6.2

4.1

3.2

2.4

2.1

1.6

6.9

4.9

3.9

2.9

2.5

2.1

Over Temperature Range

(AVG. PCB TEMP) - Auto recovery

All

110

120

°C

Efficiency

VIN = VIN-NOM

IO = IO,MAX

TA=25°C

5V0 (A)

3V3 (F)

2V5 (G)

1V8 (Y)

1V5 (M)

1V2 (K)

90.0

89.0

88.5

87.0

83.5

82.0

91.0

90.0

89.5

88.0

84.5

83.0

94.0

93.0

92.0

90.0

88.0

86.0

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