LP3917RL-Q/NOPB [TI]
CDMA Cellular Phone Power Management Unit 49-DSBGA;
| 型号： | LP3917RL-Q/NOPB |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | CDMA Cellular Phone Power Management Unit 49-DSBGA CD |
| 文件： | 总8页 (文件大小：156K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LP3917
www.ti.com
SNVS425A –DECEMBER 2006–REVISED MARCH 2007
LP3917 CDMA Cellular Phone Power Management Unit
Check for Samples: LP3917
1
FEATURES
•
•
•
•
•
Thermal Shutdown with Early Warning Alarm
Very Low Sleep Mode Current
2
•
Two High Efficiency Synchronous Magnetic
Buck Regulators, IOUT 800 mA and 600 mA
Battery Voltage Monitor Output
–
–
High Efficiency PFM Mode @ Low IOUT
Auto Mode PFM/PWM Switch
Interrupt Request for Reducing SW Polling
Ultra Small 3.5x3.5 mm Micro SMDxt 49 Bump
Package
•
•
Low Inductance 2.2 uH @ 2 MHz Clock
9 Low Noise LDOs
APPLICATIONS
–
–
–
3 x 300 mA
5 x 150 mA
1 x 80 mA
•
CDMA Handsets
Please contact NSC Sales for a full datasheet
for the device.
•
•
SW Controllable LDO Outputs
USB 2.0 Compatible Transceiver (12 Mbps)
DESCRIPTION
LP3917 is a complete Power Management Unit designed for CDMA cellular phones. LP3917 PMU contains 9 low
noise low dropout voltage regulators, 2 buck regulators, an USB Transceiver, two comparators and a high speed
serial interface to program on/off conditions and output voltages of individual regulators, and to read status
information of the PMU.
Buck regulators have an automatic switch to PFM mode at low load conditions allowing very good efficiency also
at low output currents.
LDO regulators provide very low noise, 35 uV typ, ideally suited for supplying voltage to RF section.
Two comparators can be used for detecting external accessories like ear plug etc.
LP3917 can use interrupt for alerting BB processor of status changes instead of using inefficient status polling.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Table 1. Key Specifications
VALUE
UNIT
Input Voltage Range
3.0–5.5
V
170 mV typ Dropout Voltage on LDOs @ 300 mA
2% (typ) Output Voltage accuracy on LDOs
Noise on LDOs
35
µV
Buck regulators with 3% (typ)
Accuracy and up to 90% efficiency
800/600
mA
1
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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2007, Texas Instruments Incorporated
LP3917
SNVS425A –DECEMBER 2006–REVISED MARCH 2007
www.ti.com
SYSTEM DIAGRAM
Power Domains of
Baseband
Support
2 x DC/DC
9 x LDO
Processor
I/O
Interface
of
Baseband
Processor
Memory
RF
Control
USB Transceiver
2 x Comparator
Peripheral Devices
Connector
LP3917
2
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Copyright © 2006–2007, Texas Instruments Incorporated
Product Folder Links: LP3917
LP3917
www.ti.com
SNVS425A –DECEMBER 2006–REVISED MARCH 2007
TYPICAL APPLICATION DIAGRAM
V
BATT
0.1 mF
Battery
10 mF
10 mF
V
BATT
MSMC
1.375V/1.875V
@800 mA
SEL1
SW_B1
LDO1
Voltage
Monitor
Voltage
Reference
Thermal
Shutdown
MSMP
1.8/1.875/2.6V
@300 mA
2.2 mH
R1
LDO1
4.7 mF
Buck
Regulator
#1
C1
FB_B1
V
10 mF
BATT
R2
GND_B1
SEL2
UVLO
LDO2
LDO2
LCD
V
BATT
VIN_BUCK
2.6/2.8/2.85V
@300 mA
4.7 mF
10 mF
RX_EN
LDO3
MSME
1.8V
@600 mA
FB_B2
Buck
Regulator
#2
LDO3
LDO4
RX/SYNTH
2.85V
@150 mA
2.2 mH
SW_B2
GND_B2
2.2 mF
LP3917
10 mF
MSMA
2.6V
@150 mA
LDO4
2.2 mF
V
BATT
TCXO_EN
LDO5
B2_EN
LDO1
LDO5
LDO6
TCXO
2.85V
@80 mA
1 mF
LDO1
V
BATT
1.5k
10k
1.5k
TX
2.85V
@150 mA
LDO6
IRQ_N
SDA
O/D output
O/D output
2.2 mF
LDO7 UIM
SCL
LDO7
LDO8
LDO9
2.85V
Serial
Interface
and
PON_N
@150 mA
2.2 mF
PS_HOLD
RESET_N
VIBRA
LDO8
Control
2.85V
V
BAT
@150 mA
HF_PWR
PWR_ON
2.2 mF
T
CAM/KP
2.85V
LDO9
@300 mA
200k Options S, M
500k Options Q, QL, N, NL
200k
4.7 mF
1.5k
LDO1
V
V
BATT
LDO1
LDO1
VBUS
CMP1
CMP2
+
-
VTRM
USB
Transceiver
PGM
REF
BATT
SUSPEND
1 mF
1 mF
-
+
V1.6
Copyright © 2006–2007, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: LP3917
LP3917
SNVS425A –DECEMBER 2006–REVISED MARCH 2007
www.ti.com
DEVICE PIN DIAGRAM
GND_
B1
PS_
HOLD
LDO3
LDO1
RX_EN
SCL
LDO2
LDO4
SEL1
CREF
BMON
SEL2
7
TCXO_
EN
SW_B1
VIN1
FB_B1
B2_EN
FB_B2
VM
6
VIN_
BUCK
LDO5
CMP1
INP1
IRQ_N
GNDD
PON_N
5
SUS
PEND
SW_B2
LDO6
SDA
4
GND_
B2
RESET
_N
LDO7
INP2
RCV
3
VIN
BATT
HF_
PWR
VTRM
D+
LDO8
CMP2
OE_N
VP
2
PWR_
ON
LDO9
VIN2
GNDA
VBUS
D-
1
A
B
C
D
E
F
G
Figure 1. TOP VIEW
PACKAGE MARKING INFORMATION
XY = 2 Digit Date Code
TT = Die Traceability
XYTT
V0x
V0x = LP3917 Product ID
= Pin 1A
4
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Copyright © 2006–2007, Texas Instruments Incorporated
Product Folder Links: LP3917
PACKAGE OPTION ADDENDUM
www.ti.com
29-Aug-2015
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(6)
(3)
(4/5)
LP3917RL-M/NOPB
LP3917RL-N/NOPB
LP3917RL-Q/NOPB
LP3917RL-S/NOPB
LP3917RLX-M/NOPB
LP3917RLX-N/NOPB
LP3917RLX-Q/NOPB
LP3917RLX-S/NOPB
ACTIVE
DSBGA
DSBGA
DSBGA
DSBGA
DSBGA
DSBGA
DSBGA
DSBGA
YPG
49
49
49
49
49
49
49
49
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
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V05
V03
V04
V01
V05
V03
V04
V01
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
YPG
YPG
YPG
YPG
YPG
YPG
YPG
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
29-Aug-2015
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
MECHANICAL DATA
YPG0049
D
0.650±0.075
E
RLA49XXX (Rev B)
4214898/A
12/12
A. All linear dimensions are in millimeters. Dimensioning and tolerancing per ASME Y14.5M-1994.
B. This drawing is subject to change without notice.
NOTES:
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相关型号：
LP3917RLX-Q/NOPB
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA49, 3.50 X 3.50 MM, SMD-49, Power Management Circuit
NSC
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