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| 型号： | TPS51916EVM-746 |
| 厂商： | Texas Instruments |
| 文件页数： | 1/34页 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR TPS51916-746 |
| 标准包装： | 1 |
| 系列： | D-Cap™, D-Cap2™ |
| 主要目的： | 特殊用途 DC/DC，DDR 存储器电源 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 1.2 V ~ 1.5 V |
| 电流 - 输出： | 20A |
| 输入电压： | 8 ~ 20 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 500kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | TPS51916 |
| 其它名称： | 296-30054 TPS51916EVM-746-ND |
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TPS51916
SLUSAE1D – DECEMBER 2010 – REVISED JUNE 2012
Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck
Controller, 2-A LDO, Buffered Reference
1
FEATURES
DESCRIPTION
2
?
Synchronous Buck Controller (VDDQ)
– Conversion Voltage Range: 3 V to 28 V
The TPS51916 provides a complete power supply for
DDR2, DDR3 and DDR3L memory systems in the
lowest total cost and minimum space. It integrates a
– Output Voltage Range: 0.7 V to 1.8 V
– 0.8% V REF Accuracy
– Selectable Control Architecture
– D-CAP? Mode for Fast Transient
Response
– D-CAP2? Mode for Ceramic Output
Capacitors
– Selectable 300 kHz/ 400 kHz/ 500 kHz/
670 kHz Switching Frequencies
synchronous buck regulator controller (VDDQ) with a
2-A sink/source tracking LDO (VTT) and buffered low
noise reference (VTTREF). The TPS51916 employs
D-CAP? mode coupled with 300 kHz/400 kHz
frequencies for ease-of-use and fast transient
response or D-CAP2? mode coupled with higher
500 kHz/670 kHz frequencies to support ceramic
output capacitor without an external compensation
circuit. The VTTREF tracks VDDQ/2 within excellent
0.8% accuracy. The VTT, which provides 2-A
sink/source peak current capabilities, requires only
– Optimized Efficiency at Light and Heavy
10- μ F
of
ceramic
capacitance.
In
addition,
a
Loads with Auto-skip Function
– Supports Soft-Off in S4/S5 States
dedicated LDO supply input is available.
The TPS51916 provides rich useful functions as well
?
– OCL/OVP/UVP/UVLO Protections
– Powergood Output
2-A LDO(VTT), Buffered Reference(VTTREF)
as excellent power supply performance. It supports
flexible power state control, placing VTT at high-Z in
S3 and discharging VDDQ, VTT and VTTREF (soft-
off) in S4/S5 state. Programmable OCL with low-side
– 2-A (Peak) Sink and Source Current
MOSFET
R DS(on)
sensing,
OVP/UVP/UVLO
and
– Requires Only 10- μ F of Ceramic Output
Capacitance
– Buffered, Low Noise, 10-mA VTTREF
Output
– 0.8% VTTREF, 20-mV VTT Accuracy
– Support High-Z in S3 and Soft-Off in S4/S5
thermal shutdown protections are also available.
The TPS51916 is available in a 20-pin, 3 mm × 3
mm, QFN package and is specified for ambient
temperature from –40°C to 85°C.
VIN
5VIN
12 V5IN
?
?
Thermal Shutdown
20-Pin, 3 mm × 3 mm, QFN Package
PGND
S3
17 S3
TPS51916
VBST 15
DRVH 14
VDDQ
APPLICATIONS
? DDR2/DDR3/DDR3L Memory Power Supplies
? SSTL_18, SSTL_15, SSTL_135 and HSTL
PGND
S5
16 S5
6 VREF
SW 13
DRVL 11
PGND 10
Termination
8
REFIN
PGOOD 20
VDDQSNS 9
Powergood
VLDOIN
2
7
GND
VTT
3
VTT
19 MODE
18 TRIP
VTTSNS
VTTGND
1
4
VTTREF
5
VTTREF
UDG-10193
AGND PGND
AGND
PGND
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.
2
D-CAP, D-CAP2 are trademarks of Texas Instruments.
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 ? 2010–2012, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS51916EVM-746 | 制造商:Texas Instruments 功能描述:TPS51916, DC/DC CONVERTER, STEP DOWN, EV |
| TPS51916RUK | 制造商:TI 制造商全称:Texas Instruments 功能描述:Using the TPS51916EVM-746 Complete DDR2, DDR3 |
| TPS51916RUKR | 功能描述:直流/直流开关调节器 DDR2,DDR3 & DDR3L BUCK CONTROLLER RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS51916RUKT | 功能描述:直流/直流开关调节器 DDR2,DDR3 & DDR3L BUCK CONTROLLER RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS51980RTVR | 制造商:Texas Instruments 功能描述:DUAL PWM,99% MAX |
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