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參數資料
| 型號： | TPS51020DBTR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 450 kHz SWITCHING FREQ-MAX, PDSO30 |
| 封裝： | GREEN, PLASTIC, TSSOP-30 |
| 文件頁數： | 1/29頁 |
| 文件大小： | 672K |
| 代理商： | TPS51020DBTR |
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TPS51020
SLUS564C JULY 2003 REVISED OCTOBER 2008
DUAL, VOLTAGE MODE, DDR SELECTABLE, SYNCHRONOUS,
STEPDOWN CONTROLLER FOR NOTEBOOK SYSTEM POWER
1
www.ti.com
FEATURES
D Wide Input Voltage Range: 4.5-V to 28-V
D Selectable Dual and DDR Modes
D Selectable Fixed Frequency Voltage Mode
D Advanced Power Good Logic Monitors both
Channels
D Selectable Autoskip Mode
D Integrated Boot Strap Diodes
D 180° Phase Shift Between Channels
D Integrated 5-V, 60-mA Regulator
D Input Feedforward Control
D 1% Internal 0.85-V Reference
D RDS(on) Overcurrent Detection (4200 ppm/°C)
D Integrated OVP, UVP and Power Good Timers
D 30-pin TSSOP Package
APPLICATIONS
D Notebook Computers System Bus and I/O
D DDR I or DDR II Termination
DESCRIPTION
The
TPS51020
is
a
multi-function
dual-
synchronous step-down controller for notebook
system power. The part is specifically designed
for high performance, high efficiency applications
where the loss associated with a current sense
resistor is unacceptable. The TPS51020 utilizes
feed forward voltage mode control to attain high
efficiency
without
sacrificing
line
response.
Efficiency at light load conditions can be
maintained high as well by incorporating autoskip
operation. A selectable, Suspend to RAM (STR)
supported, DDR option provides a one chip
solution for all switching applications from
5-V/3.3-V supply to a complete DDR termination
solution.
ORDERING INFORMATION
TA
PLASTIC TSSOP (DBT)
40
°C to 85°C
TPS51020DBT
40
°C to 85°C
TPS51020DBTR (T&R)
SIMPLIFIED
APPLICATION
DIAGRAM
UDG03144
VO1
1
2
3
4
5
6
7
8
9
10
11
12
TPS51020
COMP2
SSTRT2
PGOOD
VO2
ENBL2
ENBL1
REF_X
GND
DDR
VO1_VDDQ
SSTRT1
COMP1
17
16
20
19
18
REG5_IN
VREG5
VBST2
OUT2_U
LL2
23
22
21
26
25
24
29
28
27
30
OUT2_D
OUTGND2
VIN
TRIP1
OUTGND1
OUT1_D
LL1
OUT1_U
VBST1
13
14
15 INV2
INV1
SKIP
VIN
VO2
VIN
VO2
VO1
VIN
VO1
VO2
VREG5
TRIP2
VREG5
EXT_5V
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.
Copyright
2003, 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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS51020DBTRG4 | 功能描述:DC/DC 開關控制器 Dual DDR selectable Sync buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS51020EVM-001 | 功能描述:電源管理IC開發工具 TPS51020-001 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS5102DBT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER |
| TPS5102IDBR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| TPS5102IDBT | 功能描述:DC/DC 開關控制器 Dual Output Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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