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| 型号： | MAX8794ETB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC DDR LINEAR REG 10-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，DDR |
| 输入电压： | 1.1 V ~ 3.6 V |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 1.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
19-0584; Rev 2; 3/10
Low-Voltage DDR Linear Regulator
General Description
The MAX8794 DDR linear regulator sources and sinks up
to 3A peak (typ) using internal n-channel MOSFETs. This
linear regulator delivers an accurate 0.5V to 1.5V output
from a low-voltage power input (V IN = 1.1V to 3.6V). The
MAX8794 uses a separate 3.3V bias supply to power the
control circuitry and drive the internal n-channel MOSFETs.
The MAX8794 provides current and thermal limits to pre-
vent damage to the linear regulator. Additionally, the
MAX8794 generates a power-good (PGOOD) signal to
indicate that the output is in regulation. During startup,
PGOOD remains low until the output is in regulation for 2ms
(typ). The internal soft-start limits the input surge current.
The MAX8794 powers the active-DDR termination bus
that requires a tracking input reference. The MAX8794
can also be used in low-power chipsets and graphics
processor cores that require dynamically adjustable
output voltages. The MAX8794 is available in a 10-pin,
3mm x 3mm, TDFN package.
Features
o Internal Power MOSFETs with Current Limit (3A typ)
o Fast Load-Transient Response
o External Reference Input with Reference
Output Buffer
o 1.1V to 3.6V Power Input
o ± 15mV (max) Load-Regulation Error
o Thermal-Fault Protection
o Shutdown Input
o Power-Good Window Comparator with 2ms (typ)
Delay
o Small, Low-Profile, 10-Pin, 3mm x 3mm TDFN
Package
o Ceramic or Polymer Output Capacitors
Ordering Information
Applications
Notebook/Desktop Computers
DDR Memory Termination
Active Termination Buses
Graphics Processor Core Supplies
PART
MAX8794ETB+
MAX8794ETB/V+
TEMP RANGE
-40 ° C to +85 ° C
-40 ° C to +85 ° C
PIN-
PACKAGE
10 TDFN-EP*
(3mm x 3mm)
10 TDFN-EP*
(3mm x 3mm)
TOP
MARK
ASW
ASW
Chipset/RAM Supplies as Low as 0.5V
Pin Configuration
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
Typical Operating Circuit
V IN
TOP VIEW
(1.1V TO 3.6V)
IN
OUT
V OUT = V TT
OUTS
+
REFOUT 1
10 IN
V CC 2
9 OUT
V BIAS
(2.7V TO 3.6V)
MAX8794
AGND
3
MAX8794
8 PGND
V CC
PGND
REFIN 4
7 SHDN
SHDN
AGND
PGOOD 5
EP*
6 OUTS
PGOOD
TDFN
3mm x 3mm
V DDQ
(2.5V OR 1.8V)
REFIN
REFOUT
V REFOUT = V TTR
*EXPOSED PAD.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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