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RT9232APS Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT9232APS
Description  Programmable Frequency Synchronous Buck PWM Controller
PDF  14 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9232APS Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT9232A
6
DS9232A-02 March 2007
www.richtek.com
Typical Operating Characteristics
RRT vs. Oscillator Frequency
1
10
100
1000
0
100
200
300
400
500
600
700
800
Frequency (kHz)
Pull high to VCC
Pull down to GND
Efficient vs. Output Current
50
60
70
80
90
100
0
5
10
15
20
25
30
Output Current (A)
VIN = 3.3V
VIN = 5V
VIN = 12V
Time (1us/Div)
UGATE
Bootstrap Wave Form
PHASE
LGATE
VOUT
(5V/Div)
(5V/Div)
(5V/Div)
(500mV/Div)
Dead Time
Time (25ns/Div)
UGATE
LGATE
(5V/Div)
Loading = 0A
VGS
PHASE
Dead Time
Time (25ns/Div)
Loading = 0A
LGATE
UGATE
(5V/Div)
VGS
PHASE
UVP
Time (20ms/Div)
UGATE (10V/Div)
FB (500mV/Div)
SS (5V/Div)
VCC = EN (2V/Div)



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