150mA RF ULDO REGULATOR

AP2202

Preliminary Datasheet

8

Aug. 2005 Rev. 1. 3

BCD Semiconductor Manufacturing Limited

Typical Performance Characteristics

Figure 4. Output Voltage vs. Junction Temperature

-60

-40

-20

0

20

40

60

80

100

120

140

2.700

2.725

2.750

2.775

2.800

2.825

2.850

2.875

2.900

Junction Temperature (

AZ2202-2.8V

Figure 5. Dropout Voltage vs. Junction Temperature

-60

-40

-20

0

20

40

60

80

100

120

140

0

50

100

150

200

250

300

350

Junction Temperature (

I

OUT

=50mA

I

OUT

=100mA

I

OUT

=150mA

C

IN

L

BYP

=1nF

Electrical Characteristics (Continued)

Note 3: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature

range.

Note 4: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load

regulation in the load range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal

regulation specification.

Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal

value measured at 1V differential.

Note 6: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the

supply is the sum of the load current plus the ground pin current.

Figure 6. Quiescent Current vs. Output Current

Figure 7. Quiescent Current vs. Junction Temperature

-60

-40

-20

0

20

40

60

80

100

120

140

-2000

-1000

0

1000

2000

3000

4000

5000

AP2202-2.8V

I

OUT

=50mA

I

OUT

=100mA

I

OUT

=150mA

V

IN

=3.8V,V

EN

=2.0V,C

IN

C

L

BYP

=1nF

Junction Temperature (

0

10

20

30

40

50

60

70

80

90 100 110 120 130 140 150

-4

-3

-2

-1

0

1

2

3

4

5

6

Output Current (mA)