150mA RF ULDO REGULATOR

AP2201

Preliminary Datasheet

6

Jun. 2005 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

wise specified.

Electrical Characteristics (Continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Ground Pin Current (Note 6)

1300

1900

2500

Ripple Rejection

PSRR

dB

Current Limit

320

550

mA

Output Noise

(Regulator B only)

470 pF from BYP to GND

260

Enable

Input

Logic-Low

Voltage

Regulator shutdown

0.4

V

0.18

Enable

Input

Logic-High

Voltage

Regulator enabled

2.0

V

Enable

Input

Logic-Low

Current

0.01

-1

µA

-2

Enable

Input

Logic-High

Current

5

20

µA

25

Hz

nV /

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.

µA