Samsung SGH-A800 Schematics

+VBATT

C101
100UF

6.3V

C132
1UF

C130
1UF

U100

1

5

VIN

VOUT

2

GND

4

3

BYPASS

ON/OFF

LP2985AIM5-3.3

U111

15

VIN

VOUT

2

GND

3

NCON/OFF

LP2981AIM5-2.5

U112

1

VOUT

VIN

2

GND

NC

ON/OFF

LP2981AIM5-2.5

C105
1UF

RTC_3V3

RTC_VCC

AVCC2.5

DVCC2.5

SIMPWREN

VDD3.0

SIMVCC

55

C107
1UF

R101
39K

U101

FDG6323L

VIN,R1

ON/OFF
R1,C1

V.C1-2

V.C1-1

3

2

1

R2

SIMDATA

SIMRST

SIMCLK

(VCCSIM)

(RST)
(CLK)

(SIMDATA)

4

5

6

CN100

CLE1006-093709-001101G

SIM CONNECTOR

1

44

1

2

55

2

3

66

3

7GG89GG10

D101

C100

100NF

C103
10NF

C108
10UF

4

6.3V

C102
10UF

6.3V

C110
100NF

MCL4154

R100

C106

RB414II06N

1K

C104
10NF

5

C109

C111

10UF

43

100NF

6.3V

POWER

DCVOLT

RTC_3V3

R109
10K

C133
1UF

R110
100K

U103

1

VIN5VOUT

2

GND

3

ON/OFF

BYPASS

LP2985AIM5-3.0

2

4

U105

UMC5NTL

5

R103

2.7K

4

Q100

3

ZXT13P20DE6

5

6

1

2

ICHAG

CHG_ON

C118
33NF

R102
82K,1%

C116
10UF

6.3V
R104

100K,1%

VDD3.0

U106

1

5

OUT

CD

2

VDD

3

4

NC

VSS

C117
100NF

+VBATT

BAT_VOLT

RST

S-80926ALMP-DAP-T2

Title

POWER Management Schematic

Document Number

SAMSUNG/A800/B.B/PSU

A3

Date: Sheet

2002.08.14

1 of 7

RevSize

Rev 6.0

VDD3.0

C112

C113
10NF

10UF

6.3V

BBPWR

ON_OFF

BB_PWR

R105
100K

C119

100NF

R113

R106
100K

R107
100K

DCVOLT

C115
10UF
10V

0

D100

1

3

2

4

5

UMN1

R108
100K

POWER

C114
10NF

1

4

3

U104

LTC1734ES6-4.2#TR

ISENSE

1

DRIVE

GND

2

VSENSE

3

VCC

PROG

6
5
4

DCIN