TWL2203

POWER SUPPLY MANAGEMENT IC

SLVS185 – FEBRUARY 2000

1

POST OFFICE BOX 655303

Voltage Regulators (LDO)

Amplifiers

14 15

RINGON

RING

VOUT6

DET_DELAY

VOUT2

VSUP

VOUT4

VOUT5

VOUT3

VOUT1

EN3

36

35

34

33

32

31

30

29

28

27

26

25

16

1

2

3

4

5

6

7

8

9

10

11

12

VREF

MUXOUT

MUXIN0

MUX0

MUX1

MUXIN1

MUXIN2

MUXIN3

OP1I–

OP1I+

OP2I–

OP2I+

17 18 19 20

47 46 45 44 43

48

42

40 39 38

41

21 22 23 24

37

13

PFB PACKAGE

(TOP VIEW)

description

The TWL2203 incorporates a complete power-management system for a cellular telephone that uses

lithium-ion cells. The device includes circuitry to control the gate voltage of two P-channel MOSFETs. The

MOSFETs perform constant-voltage/constant-current charging (CVCC). The TWL2203 has seven low-drop

linear voltage regulators (LDO) to regulate the battery power supply to the different sections of the phone, a

battery voltage monitor, a ringer driver, an analog multiplexer, and three general-purpose operational amplifiers

for signal conditioning.

The TWL2203 is packaged in TI’s 48-pin thin-quad flat package (PFB).

Copyright

© 2000, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

MicroStar is a trademark of Texas Instruments Incorporated.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.