ADP3500AST datasheet(13/29 Pages) ETC

13 / 29 page

ADP3500

REV.PrP 2/6/02

- 13 -

Table 2. LDO operation overview

Regulator

Names

Current

Rating (mA)

Voltage (Typ)

Or Range

Program steps

Step size

(mV)

Default

Cout

LDO1a

Baseband VDD

150

2.90V

N/A

2.2

µF

LDO1b

Baseband VDD sub

2.87V

N/A

2.2

µF

LDO2a

Baseband AVDD

2.36V~2.66V

2.52V

µF

LDO2b

Baseband AVDD sub

0.3

2.33V~2.63V

2.49V

µF

LDO3a

RTC/Coin Cell

3.0V

N/A

µF

LDO3b

RTC/Coin Cell sub

2.97V

N/A

µF

LDO4

Audio

180

2.9V

N/A

2.2

µF

LDO5

Vibrator

150

2.9V

N/A

2.2

µF

LDO6a

Baseband Core

2.6V

N/A

µF

LDO6b

Baseband Core sub

0.3

2.57V

N/A

µF

LDO7

RF Rx1

100

2.9V

N/A

2.2

µF

LDO8

RF Tx

150

2.9V

N/A

2.2

µF

LDO9

RF Rx2

2.9V

N/A

µF

LDO10

RF Option

2.9V

N/A

µF

LDO11

Option

100

1.5V

N/A

2.2

µF

1.2 BATTERY CHARGER

1.2.1. Block Diagram

LOGIC Block

ISENSE

ADAPTER

BASE

BVS

BATID

Charger_

Detect

BATID

REF

Pre-charge

5m A

CHV

0/1

BVS

MVEN

MV4:0

RSENSE

AC Adapter

Cvbat

CHI

CHEN

DDLO

LDO_

V(ISENSE)

MVBAT

VBAT

100K

Ω

Battery

CADAPTER

Figure 5. Battery charger block diagram

PRELIMINARY TECHNICAL DATA

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