参数资料
型号: RT9204CS
厂商: Richtek Technology Corporation
元件分类: 线性稳压
英文描述: Dual Regulator - Standard Buck PWM DC-DC and Linear Power Controller
中文描述: 双稳压器-标准降压PWM型DC - DC与线性电源控制器
文件页数: 12/14页
文件大小: 276K
代理商: RT9204CS
Preliminary
RT9204
DS9204-00 February 2002
www.richtek-ic.com.tw
7
Functional Pin Description
GND (Pin 1)
Signal and power ground for the IC. All voltage levels
are measured with respect to this pin.
VCC (Pin 2)
This is the main bias supply for the RT9204. This pin
also provides the gate bias charge for the lower
MOSFETs gate. The voltage at this pin monitored for
power-on reset (POR) purpose. This pin is also the
internal 6.0V regulator output powered from BOOT pin
when BOOT pin is directly powered from ATX 12V.
DRV (Pin 3)
This pin is linear regulator output driver. Connect to
external bypass NPN transistor base or NMOSFET
gate terminal.
FBL (Pin 4)
This pin is connected to the linear regulator output
divider. This pin also connects to internal linear
regulator error amplifier inverting input and protection
monitor.
FB (Pin 5)
This pin is connected to the PWM converter’s output
divider. This pin also connects to internal PWM error
amplifier inverting input and protection monitor.
SD (Pin 6)
Active low design with a 40
A pull low current source.
Pull this pin to VCC to shutdown both PWM and linear
regulator.
BOOT (Pin 7)
This pin provides ground referenced bias voltage to
the upper MOSFET driver. A bootstrap circuit is used
to create a voltage suitable to drive a logic-level N-
channel MOSFET when operating at a single 5V
power supply. This pin also could be powered from
ATX 12V, in this situation, an internal 6.0V regulator
will supply to VCC pin for internal voltage bias.
UGATE (Pin 8)
Connect UGATE pin to the PWM converter’s upper
MOSFET gate. This pin provides the gate drive for the
upper MOSFET.
相关PDF资料
PDF描述
RT9205ACS Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RTB-1.5-2P 2 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
RTB-1.5-3P 3 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
RTB-1.5-4P 4 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
RTB-1.5-5P 5 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SOLDER
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