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參數(shù)資料
| 型號(hào)： | RT9209APS |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Synchronous Buck PWM DC-DC with Enable & PGOOD |
| 中文描述： | 同步降壓PWM直流與直流啟用 |
| 文件頁(yè)數(shù)： | 5/14頁(yè) |
| 文件大?。?/td> | 217K |
| 代理商： | RT9209APS |
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RT9209/A
5
DS9209/A-08 March 2007
www.richtek.com
Electrical Characteristics
(V
CC
= 5V, T
A
= 25°C, Unless otherwise specified.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
V
CC
Supply Current
Nominal Supply Current
I
CC
UGATE, LGATE open
--
3
6
mA
Power-On Reset
Rising V
CC
Threshold
V
CC
Threshold Hysteresis
Reference
3.7
4.1
4.5
V
0.3
0.5
0.7
V
Reference Voltage
0.784
0.8
0.816
V
Oscillator
RT9209
210
260
310
Free Running Frequency
RT9209A
350
400
450
kHz
Ramp Amplitude
Δ
V
OSC
--
1.75
--
V
P-P
Error Amplifier
DC gain
33
35
40
dB
PWM Controller Gate Driver
Upper Drive Source
R
UGATE
BOOT= 12V
BOOT-V
UGATE
= 1V
--
7
12
Ω
Upper Drive Sink
R
UGATE
V
UGATE
= 1V
--
7
7.5
Ω
Lower Drive Source
R
LGATE
V
CC
- V
LGATE
= 1V,
--
7
6
Ω
Lower Drive Sink
R
LGATE
V
LGATE
= 1V
--
3
4
Ω
Protection
FB Over-Voltage Trip
FB Rising
--
1
--
V
FB Under-Voltage Trip
FB Falling
--
0.6
--
V
Power Good Threshold
FB pin Rising
86
90
95
%
Power Good Hysteresis
--
2
--
%
Power Good Sink Capability
I
PGOOD
= 1mA
--
0.4
V
SS Source Current
12
20
32
μ
A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT9209GS | Synchronous Buck PWM DC-DC with Enable & PGOOD |
| RT9209PS | Synchronous Buck PWM DC-DC with Enable & PGOOD |
| RT9210 | Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination |
| RT9210GC | Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination |
| RT9210GS | Dual 5V Synchronous Buck DC-DC PWM Controller for DDR Memory VDDQ and VTT Termination |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT9209GS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous Buck PWM DC-DC with Enable & PGOOD |
| RT9209PS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Synchronous Buck PWM DC-DC with Enable & PGOOD |
| RT9210 | 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 |
| RT9210GC | 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 |
| RT9210GS | 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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