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參數(shù)資料
| 型號： | RT8004QQV |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | 3A, 4MHz, Synchronous Step-Down Regulator |
| 中文描述： | 第3A，4MHz，同步降壓型穩(wěn)壓器 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 257K |
| 代理商： | RT8004QQV |
RT8004
7
DS8004-03 September 2007
www.richtek.com
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.
Note 4.
θ
JA
is measured in the natural convection at T
A
= 25
°
C o
n 4-layers high effective thermal conductivity test board of
JEDEC 51-7 thermal measurement standard. The case point of
θ
JC
is on the expose pad for the QFN package.
Note 5.
The specifications over the -40
°
C to 85
°
C operation ambient temperature range are assured by design, characterization
and correlation with statistical process controls.
Note 6.
The external synchronous frequency must be equal to 1 to 1.3 times of the internal setting frequency. The switching
frequency reange is guaranteed by design but not production tested.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
R
OSC
= 309k
0.8
1
1.2
MHz
Switching Frequency
f
OSC
Switching Frequency Range
0.3
--
4
MHz
Sync Frequency Range
(Note 6)
0.3
--
4
MHz
Switch On Resistance, High
R
PFET
I
SW
= 1A
45
75
110
m
Ω
Switch On Resistance, Low
R
NFET
I
SW
= 1A
45
69
100
m
Ω
Peak Current Limit
I
LIM
4
5.2
7
A
VDD Rising
2.25
2.52
2.7
V
Undervoltage Lockout Threshold
Hysteresis
--
0.15
--
V
SW Leakage Current
V
EN
= 0V, V
IN
= 5.5V
--
--
1
μ
A
EN/SS Leakage Current
--
--
1
μ
A
Enable Threshold
V
EN
0.65
--
0.95
V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT8004QS | 3A, 4MHz, Synchronous Step-Down Regulator |
| RT8005 | 1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT8004QS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:3A, 4MHz, Synchronous Step-Down Regulator |
| RT8005 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter |
| RT8005GQV | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1A, 2MHz, High-Efficiency Synchronous Buck PWM Converter |
| RT8005PQV | 制造商:RICHTEK 功能描述:DC/DC (IC) |
| RT8008 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1.5MHz,600mA,High Efficiency PWM Step-Down DC/DC Converter |
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