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參數(shù)資料
| 型號： | RT9210GS |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination |
| 中文描述： | 雙5V的同步降壓型DC - DC PWM控制器，用于DDR內(nèi)存VDDQ和VTT終端 |
| 文件頁數(shù)： | 7/17頁 |
| 文件大?。?/td> | 360K |
| 代理商： | RT9210GS |
RT9210
Preliminary
DS9210-05 March 2007
7
www.richtek.com
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Window Regulator
Load Current
I
LOAD
--
±
10
--
mA
Output Voltage Error
Δ
V
OUT
V2_SD = V
CC
,
±
10mA load on V2
--
±
7
--
%
PWM Controller Gate Drivers
Upper Gate Source (UGATE1 and 2)
R
UGATE
BOOT = 10V
BOOT
V
UGATE
= 1V
--
7
--
Ω
Upper Gate Sink (UGATE1 and 2)
R
UGATE
V
UGATE
= 1V
V
CC
V
LGATE
= 1V
--
5
--
Ω
Lower Gate Source (LGATE1 and 2)
R
LGATE
--
4
--
Ω
Lower Gate Sink (LGATE1 and 2)
R
LGATE
V
LGATE
= 1V
--
2
--
Ω
Upper Gate Rising Time (UGATE1 and 2) T
R_UGATE
C
Load
= 3.3nF
--
70
--
ns
Upper Gate Falling Time (UGATE1 and 2) T
F_UGATE
C
Load
= 3.3nF
--
50
--
ns
Lower Gate Rising Time (LGATE1 and 2) T
R_LGATE
C
Load
= 3.3nF
--
50
--
ns
Lower Gate Falling Time (LGATE1 and 2) T
F_LGATE
C
Load
= 3.3nF
--
32
--
ns
Dead Time
T
DT
--
--
100
ns
Protection
FB1 Over-Voltage Trip
Δ
FB
1OVT
FB1 Rising
Δ
FB
1UVT
FB1 Falling
125
137.5
--
%
FB1 Under-Voltage Trip
--
62.5
75
%
OCSET/SD Current Source
I
OCSET
V
OCSET/ SD
= 4.5V
34
40
46
μ
A
OCP Blocking Time
--
320
540
ns
Logic-Low Voltage
V
IL
Shutdown
--
--
0.2
OCSET/SD Logic-High Voltage
V
IH
T
SS
Enable
2.0
--
--
V
Soft-Start Interval
--
4
--
ms
Power Good
Upper Threshold
V
PGOOD+
FB1 & Sense2 Rising
110
115
120
%
Lower Threshold
V
PGOOD-
FB1 & Sense2 Rising
80
85
90
%
Note 1.
Stresses listed as the above
“
Absolute Maximum Ratings
”
may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2.
Devices are ESD sensitive. Handling precaution recommended.
Note 3.
The device is not guaranteed to function outside its operating conditions.
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| RT9210PC | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination |
| RT9210PS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination |
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