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參數資料
| 型號： | 65056 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs |
| 中文描述： | 6通道電源管理集成電路兩個降壓轉換器和4低輸入電壓LDO的 |
| 文件頁數： | 1/41頁 |
| 文件大?。?/td> | 939K |
| 代理商： | 65056 |
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www.ti.com
FEATURES
Up To 95% Efficiency
Output Current for DC/DC Converters:
–
TPS65050: 2 x 0.6 A
–
TPS65051: DCDC1 = 1 A; DCDC2 = 0.6 A
–
TPS65052: DCDC1 = 1 A; DCDC2 = 0.6 A
–
TPS65054: 2 x 0.6 A
–
TPS65056: DCDC1 = 1 A; DCDC2 = 0.6 A
Output Voltages for DC/DC Converters
–
TPS65050: Externally Adjustable
–
TPS65051: Externally Adjustable
–
TPS65052: DCDC1 = Fixed at 3.3 V;
DCDC2 = 1 V / 1.3 V for Samsung
Application Processors
–
TPS65054: DCDC1 = Externally Adjustable;
DCDC2 = 1.3 V / 1.05 V for OMAP1710
Processor
–
TPS65056: DCDC1 = Fixed at 3.3 V;
DCDC2 = 1 V / 1.3 V for Samsung
Application Processors
V
I
Range for DC/DC Converters
From 2.5 V to 6 V
2.25-MHz Fixed Frequency Operation
Power Save Mode at Light Load Current
180
°
Out-of-Phase Operation
Output Voltage Accuracy in PWM mode
±
1%
Low Ripple PFM Mode
Total Typical 32-
μ
A Quiescent Current for
Both DC/DC Converters
100% Duty Cycle for Lowest Dropout
Two General-Purpose 400-mA, High PSRR
LDOs
Two General-Purpose 200-mA, High PSRR
LDOs
V
I
range for LDOs from 1.5 V to 6.5 V
Digital Voltage Selection for the LDOs
Available in a 4 mm x 4 mm 32-Pin QFN
Package
APPLICATIONS
Cell Phones, Smart-Phones
WLAN
PDAs, Pocket PCs
OMAP and Low-Power TMS320 DSP
Supply
Samsung S3C24xx application processor
Supply
Portable Media Players
DESCRIPTION
The TPS6505x are integrated Power Management
ICs for applications powered by one Li-Ion or
Li-Polymer cell, which require multiple power rails.
The TPS6505x provides two efficient, 2.25-MHz
step-down converters targeted at providing the core
voltage and I/O voltage in a processor based
system. Both step-down converters enter a low
power mode at light load for maximum efficiency
across the widest possible range of load currents.
TPS65050, TPS65051, TPS65052
TPS65054, TPS65056
SLVS710–JANUARY 2007
6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS
AND 4 LOW-INPUT VOLTAGE LDOs
For low noise applications, the devices can be forced
into fixed frequency PWM mode by pulling the
MODE pin high. In the shutdown mode, the current
consumption is reduced to less than 1
μ
A. The
devices allow the use of small inductors and
capacitors
to
achieve
TPS6505x provides an output current of up to 1 A on
each DC/DC converter. The TPS6505x also integrate
two 400-mA LDO and two 200-mA LDO voltage
regulators, which can be turned on/off using separate
enable pins on each LDO. Each LDO operates with
an input voltage range between 1.5 V and 6.5 V
allowing them to be supplied from one of the
step-down converters or directly from the main
battery.
a
small
solution
size.
Four digital input pins are used to set the output
voltage of the LDOs from a set of 16 different
combinations for LDO1 to LDO4 on TPS65050 and
TPS65052. In TPS65051, TPS65054 and TPS65056,
the LDO voltages are adjustable using external
resistor dividers.
The TPS6505x come in a small 32-pin leadless
package (4 mm x 4 mm QFN) with a 0.4 mm pitch.
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.
OMAP, TMS320, PowerPAD are trademarks of Texas Instruments.
UNLESS
PRODUCTIOTHERWISE
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
NOTED
this
document
contains
Copyright 2007, Texas Instruments Incorporated
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