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参数资料
| 型号： | APW7066RC-TRL |
| 厂商： | ANPEC ELECTRONICS CORP |
| 元件分类： | 稳压器 |
| 英文描述： | Dual Synchronous Buck PWM Controllers and One Linear Controller |
| 中文描述： | SWITCHING CONTROLLER, PDSO24 |
| 封装： | LEAD FREE, MO-153ADT, TSSOP-24 |
| 文件页数： | 1/33页 |
| 文件大小： | 338K |
| 代理商： | APW7066RC-TRL |
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Copyright
ANPEC Electronics Corp.
Rev. A.7 - Mar., 2008
APW7066
1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Dual Synchronous Buck PWM Controllers and One Linear Controller
Features
Two Synchronous Buck Converters and
a Linear Regulator
VIN range up to 12V
Input Power Supplies Require 12V and 5V or
use 12V to generate a Shunt Regulator 5.8V
0.6V Reference for VOUT1 and VOUT3
with 0.8% accurate
3.3V Reference for VOUT2 with 0.8% accurate
Buffered VTT Reference Output
Three Outputs have Independent Soft-Start
and Enable
Internal 300kHz Oscillator and Programmable
Frequency range from 70 kHz to 800kHz
Synchronous Switching Frequency
DDR mode or Independent Mode Selection
Phase Shift Selection
Power Good Function
Short-Circuit Protection for VOUT1 and VOUT2
Thermally Enhanced TSSOP-24P and
QFN5x5-32 Packages
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
General Description
The APW7066 has two synchronous buck PWM control-
lers and one linear controller with high precision internal
references voltage to offer accurate outputs. The PWM
controllers are designed to drive two N-channel MOSFETs
in synchronous buck topology, and the linear controller
drives an external N-channel MOSFET. The device re-
quires 12V and 5V power supplies, if the 5V supply is not
available, VCC12 can offer an optional shunt regulator 5.
8V for 5V supply.
All outputs have independent soft-start and enable func-
tions by SS/EN pins to control. Connect a capacitor from
each SS/EN pin to the ground for setting the soft-start
time, and pulling the SS/EN pin below 1V to disable
regulator. Pull the SS2/EN2 to VCC, enter the DDR mode,
the SS1/EN1 controls both VOUT1 and VOUT2, and al-
lows VOUT2 to track VOUT1. It also offers the phase shift
function by REFOUT pin to
select the phase shift be-
tween VOUT1 and VOUT2 in DDR mode or Independent
mode. When all SS/EN pins exceed 3.3V and no faults
are detected, the PGOOD pin goes high to indicate the
regulators are ready. If any of the SS/EN pins goes below
3.2V or any of the outputs has a fault condition, the PGOOD
pin will be pulled low.
The internal oscillator is nominally 300kHz (keep the FS/
SYNC pin open or short to GND), and it offers the pro-
grammable frequency function from 70kHz to 800kHz; con-
necting a resistor from FS/SYNC to VCC12 to decrease
the frequency, conversely, connect a resistor from FS/
SYNC to GND to increase the frequency.The IC also pro-
vides the synchronous frequency function. Connect the
LGATE signal of another converter to FS/SYNC pin; forcing
the switching frequency to follow the external clock. The
possible synchronous frequency is from 150kHz to 800kHz.
There is no R
ds(on) sensing or under-voltage sensing on
APW7066. However, it provides a simple short-circuit pro-
tection by monitoring the COMP1 and COMP2 for over-
voltage. When any of two pins exceeds their trip point and
the condition persists for 1-2 internal clock cycle (3-6
s
at 300kHz), then it will shut down all regulators.
Graphic Cards
DDR memory Power Supplies
Low-Voltage Distributed Power Supplies
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相关代理商/技术参数 |
参数描述 |
|---|---|
| APW7066RC-TU | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Dual Synchronous Buck PWM Controllers and One Linear Controller |
| APW7066RC-TUL | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Dual Synchronous Buck PWM Controllers and One Linear Controller |
| APW7067N | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Synchronous Buck PWM and Linear Controller |
| APW7067N_08 | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Synchronous Buck PWM and Linear Controller |
| APW7067NKE-TR | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Synchronous Buck PWM and Linear Controller |
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