DatasheetsPDF.com

Management IC. SC905A Datasheet

DatasheetsPDF.com

Management IC. SC905A Datasheet






SC905A IC. Datasheet pdf. Equivalent




SC905A IC. Datasheet pdf. Equivalent





Part

SC905A

Description

CDMA Cellular Phone Power Management IC



Feature


CDMA Cellular Phone www.DataSheet4U.com IC Power Management POWER MANAGEMENT De scription The SC905A is a power managem ent integrated circuit (PMIC) designed for the latest CDMA chip sets. The devi ce provides four general purpose low dr opout regulators (LDOs), and five low n oise LDOs designed for analog circuits. The VMOT LDO can be used as a general purpose regulator .
Manufacture

Semtech

Datasheet
Download SC905A Datasheet


Semtech SC905A

SC905A; or as an adjustable motor drive output t hat can supply up to 150mA to drive a v ibrator motor. Each LDO’s enable and output voltage are controlled via the I 2C bus. The VTCXO output has an externa l enable pin that can be used instead o f the register bit when timing is criti cal for minimizing sleep current. The V MOT also has an external enable pin for additional flexibili.


Semtech SC905A

ty. Initial power-on is achieved by acti vating either the ON button, the batter y charger, or the HFPWR signal, and the PGOOD input is used by the microproces sor to latch power on or disable the de vice. The thermally-efficient MLPQ-32 package combined with miniature ceramic bypass capacitors minimize required PC B area, making the SC905A ideal for spa ce-conscious portabl.


Semtech SC905A

e applications. SC905A Features 9 LDO Linear Regulators CORE: 1.35V - 2.90V @ 300mA ANA: 2.55V - 2.90V @ 200mA PAD: 1.75V - 3.30V @ 300mA RX: 2.75V - 3.10V @ 150mA TX: 2.75V - 3.10V @ 150mA TCXO : 2.75V - 3.10V @ 80mA PLL: 2.75V - 3.1 0V @ 80mA Camera: 1.75V - 3.30V @ 100mA Motor Drive: 1.75V - 3.30V @ 150mA I2C Interface for Microprocessor Control L ess than 1μA Quies.

Part

SC905A

Description

CDMA Cellular Phone Power Management IC



Feature


CDMA Cellular Phone www.DataSheet4U.com IC Power Management POWER MANAGEMENT De scription The SC905A is a power managem ent integrated circuit (PMIC) designed for the latest CDMA chip sets. The devi ce provides four general purpose low dr opout regulators (LDOs), and five low n oise LDOs designed for analog circuits. The VMOT LDO can be used as a general purpose regulator .
Manufacture

Semtech

Datasheet
Download SC905A Datasheet




 SC905A
POWER MANAGEMENT
Description
The SC905A is a power management integrated circuit
(PMIC) designed for the latest CDMA chip sets. The device
provides four general purpose low dropout regulators
(LDOs), and five low noise LDOs designed for analog
circuits. The VMOT LDO can be used as a general purpose
regulator or as an adjustable motor drive output that can
supply up to 150mA to drive a vibrator motor.
Each LDO’s enable and output voltage are controlled via
the I2C bus. The VTCXO output has an external enable pin
that can be used instead of the register bit when timing is
critical for minimizing sleep current. The VMOT also has
an external enable pin for additional exibility.
Initial power-on is achieved by activating either the ON
button, the battery charger, or the HFPWR signal, and the
PGOOD input is used by the microprocessor to latch power
on or disable the device.
SC905A
CDMA Cellular Phone
Power Managementwww.DataSheet4U.com IC
Features
9 LDO Linear Regulators
CORE: 1.35V - 2.90V @ 300mA
ANA: 2.55V - 2.90V @ 200mA
PAD: 1.75V - 3.30V @ 300mA
RX: 2.75V - 3.10V @ 150mA
TX: 2.75V - 3.10V @ 150mA
TCXO: 2.75V - 3.10V @ 80mA
PLL: 2.75V - 3.10V @ 80mA
Camera: 1.75V - 3.30V @ 100mA
Motor Drive: 1.75V - 3.30V @ 150mA
I2C Interface for Microprocessor Control
Less than 1μA Quiescent Current in Shutdown
65dB PSRR for Analog LDOs
Over-Temperature Protection
Power-On Control
Small 5mm x 5mm 32-Pin MLPQ Package
The thermally-efcient MLPQ-32 package combined with
miniature ceramic bypass capacitors minimize required
PCB area, making the SC905A ideal for space-conscious
portable applications.
Typical Application Circuit
Applications
CDMA Cellular Handsets
PDAs/Smartphones
Wireless VOIP Handsets
Battery
Charger
Circuit
Handsfree
Option
MOTOR
ON/OFF
SC905A
0. 1μF
VBAT
CHPWR
EN_TCXO
E N_MO T
IN 1
IN 2
IN 3
IN 4
IN 5
ON
HFPWR
PGOOD
SDA
SCL
P W RO N
RESB
IN 6
DVIN
V CO RE
VPAD
VANA
VTCXO
VPLL
VTX
VMOT
BP
VRX
VCAM
VPSEL
A G ND
VCSEL
DG ND
VBAT
10μF
B A TTE RY
1μF
1μF
1μ F
1μF
1μF
1μF
Baseband
Processor
1μ F
1μF
Keypad
Audio
Processing
TCXO
+
Synthesiser
PLL
Transmitter
Section
PA
Receiver
Section
LNA
Camera
Module
Digital
Interface
June 7, 2006
1 www.semtech.com




 SC905A
SC905A
POWER MANAGEMENT
www.DataSheet4U.com
Absolute Maximum Ratings
Exceeding the specications below may result in permanent damage to the device or device malfunction. Operation outside of the parameters specied in the
Electrical Characteristics section is not implied.
Parameter
Symbol
Maximum
Units
Input Supply Voltage
VIN -0.3 to +7 V
Digital Input Voltage
VDIG -0.3 to VIN+0.3
V
Operating Ambient Temperature Range
TA
-40 to +85
°C
Operating Junction Temperature Range
TJ
-40 to +125
°C
Peak IR Reow Temperature
TLEAD
260
°C
Storage Temperature
TSTG
-60 to +150
°C
Thermal Resistance Junction to Ambient(1)
θJA
26 °C/W
ESD Protection Level(2)
ESD
2
kV
Notes:
(1) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad as per JESD51 standards.
(2) Tested according to JEDEC standard JESD22-A114-B.
Electrical Characteristics
Unless otherwise noted VIN = 3.7V, TA = -40 to +85°C. Typical values are at TA = +25°C.
Parameter
Symbol
Condition
Min Typ Max
Units
General
Supply Voltage
VIN
Shutdown Current
ISD
Quiescent Supply Current
Supply Bypass Capacitor
Start-Up Time
Under-Voltage Lockout
Over-Temperature
ISU
ISTBY
CVCC
tSU
UVLO
OT
Digital Inputs
Digital Input Voltage(1)
Digital Input Current
Digital Outputs
Digital Output Voltage(2)
LDO Regulator (CORE) - 300mA
VIL
VIH
IDIG
VOL
VOH
Output Voltage Accuracy(3)
Current Limit
Default At Start-Up: ON
VOUT
ILIM
VOUT-HI
VOUT-LO
2.7 5.5
ON = 0V, HFPWR = 0V, CHPWR = 0V,
PGOOD = 0V
1
Default Start-Up Mode
300
I2C, VREF Active, All Outputs Disabled
At Each Power Input Pin
30 60
1
CBP = 0.1μF
Descending, Hysteresis = 50mV
25
2.5
Hysteresis = 20°C
160
V
μA
μA
μA
μF
ms
V
°C
Logic Level High or Low
1.25
-0.2
0.4 V
V
0.2 μA
ISINK = 1.2mA
ISOURCE = 0.5mA, VPAD 1.8V
2 10 %VPAD
90 98
%VPAD
1.35V VOUT 2.90V, IOUT = 1mA,
VOUT +0.35V VIN 5.5V
VCORE = 0V
VCSEL - High
VCSEL - Low
-75 +75
350 900
1.80
1.35
mV
mA
V
V
© 2006 Semtech Corp.
2
www.semtech.com




 SC905A
SC905A
POWER MANAGEMENT
Electrical Characteristics (Cont.)
www.DataSheet4U.com
Parameter
Symbol
LDO Regulator (CORE) - 300mA (Cont.)
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
REGLINE
REGLOAD
VDO
PSRRCORE
LDO Regulator (PAD) - 300mA
Output Voltage Accuracy(3)
VOUT
Current Limit
Default at Start-Up: ON
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
LDO Regulator (ANA) - 200mA
ILIM
VOUT-HI
VOUT-LO
REGLINE
REGLOAD
VDO
PSRRPAD
Output Voltage Accuracy(4)
Current Limit
Default At Start-Up: ON
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
Output Voltage Noise
VOUT
ILIM
VOUT
REGLINE
REGLOAD
VDO
PSRRANA
en
LDO Regulator (TCXO) - 80mA
Output Voltage Accuracy(4)
Current Limit
Default At Start-Up: ON
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
Output Voltage Noise
VOUT
ILIM
VOUT
REGLINE
REGLOAD
VDO
PSRRTCXO
en
Condition
IOUT = 1mA, VOUT +0.35V < VIN < 5.5V
1mA < IOUT < 300mA
VOUT = 2.90V, IOUT = 300mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
1.75V VOUT 3.30V, IOUT =1mA,
VOUT +0.35V VIN 5.5V
VPAD = 0V
VPSEL - High
VPSEL - Low
IOUT = 1mA, VOUT +0.35V < VIN < 5.5V
1mA < IOUT < 300mA
VOUT = 3.30V, IOUT = 300mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
2.55V VOUT 2.90V, IOUT = 1mA,
VOUT +0.35V VIN 5.5V
VANA = 0V
IOUT = 1mA, VOUT +0.35V < VIN < 5.5V
1mA < IOUT < 200mA
VOUT = 2.90V, IOUT = 200mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
f = 10Hz to 100kHz, IOUT = 50mA,
CBP = 0.1μF, COUT = 1μF
2.75V VOUT 3.10V, IOUT = 1mA,
VOUT +0.35V VIN 5.5V
VTCXO = 0V
IOUT = 1mA, VOUT +0.35V < VIN < 5.5V
1mA < IOUT < 80mA
VOUT = 3.10V, IOUT = 80mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
f = 10Hz - 100kHz, IOUT = 50mA,
CBP = 0.1μF, COUT = 1μF
Min
-75
350
-75
250
-75
250
© 2006 Semtech Corp.
3
Typ
2.5
-3
300
50
3.00
2.20
2.5
-3
300
50
2.60
2.5
-3
200
65
45
3.05
2.5
-3
200
65
45
Max Units
12 mV
-30 mV
350 mV
dB
+75 mV
900 mA
V
V
12 mV
-30 mV
350 mV
dB
+75
650
12
-20
250
mV
mA
V
mV
mV
mV
dB
μVRMS
+75 mV
650 mA
V
12 mV
-20 mV
250 mV
dB
μVRMS
www.semtech.com






Recommended third-party SC905A Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)