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UNR-3.3/10-D5T PDF预览

UNR-3.3/10-D5T

更新时间: 2024-10-07 23:39:31
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其他 - ETC 模拟IC
页数 文件大小 规格书
10页 156K
描述
Analog IC

UNR-3.3/10-D5T 数据手册

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®
®
INNOVATION and EXCELLENCE  
Single Output  
UNR Series  
Non-Isolated, 1.2/1.5/1.8/2.5/3.3VOUT  
8 and 10 Amp DC/DC Converters  
As supply voltages trend lower and load currents increase, centralized power  
becomes more impractical. The tight accuracy, low noise and quick transient  
response demanded by today's low voltage CPU's, ASIC's and DSP's make power  
processing at the point of use the only viable solution. The UNR 12-33W series  
provides a complete line of non-isolated DC/DC converters to satisfy this require-  
ment. With input voltages of 5V (-D5 models) and 12V (-D12 models) these convert-  
ers offer standard output voltages of 1.2, 1.5, 1.8, 2.5 and 3.3 Volts and up to  
10 Amps of output current in both through-hole and surface-mount 1" x 2" metal  
cases.  
Features  
„
Input ranges of 4.75-5.5V or 10.8-13.6V  
„
Output voltages of 1.2/1.5/1.8/2.5/3.3V  
„
8 and 10 Amp output current models  
„
VOUT user-trimmable from 1.28V to 3.6V  
„
Non-isolated, full synchronous topology  
„
1" x 2" through-hole or SMT package  
With on/off control and output voltage trim capability as standard features, these  
non-isolated converters exploit full synchronous rectification, planar magnetics, and  
100% automated assembly to deliver high efficiencies (to 91%) and low noise at  
low cost.  
„
Gull-wing leads/standard reflow for SMT  
„
High efficiency to 91%; Low noise  
„
340kHz switching; Planar magnetics  
These versatile DC/DC’s are fully line and load regulated. They feature quick  
transient response (50µsec), user-optional on/off control (for power sequencing),  
and output overcurrent detection and shutdown ("hiccup" technique with auto-  
recovery). Their impressive guaranteed efficiencies enable them to deliver fully rated  
output power from –40 to +50/55°C (ambient) without supplemental cooling.  
If your high current requirements have made the use of inefficient linear regula-  
tors impractical, take a look at one of DATELs new switching buck regulators. Their  
high efficiency, ease-of-use, long-term reliability, and overall cost effectiveness will  
impress you. Safety agency approvals and EMC characterizations are currently in  
progress.  
„
–40 to +40/50/60°C ambient operation with  
no derating  
„
Remote on/off control; Output overcurrent  
detection  
„
IEC950/EN60950/UL1950 approval  
+VIN  
+VOUT  
INPUT  
RETURN  
OUTPUT  
RETURN  
LOGIC  
GROUND  
VOLTAGE  
BOOST  
OVERCURRENT  
DETECTION  
+VCC  
ON/OFF  
CONTROL  
PWM  
CONTROLLER  
REFERENCE &  
ERROR AMP  
V
OUT  
TRIM  
-D5 models only.  
Figure 1. Simplified Schematic  
DATEL, Inc., Mansfield, MA 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356  
Email: sales@datel.com Internet: www.datel.com  

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