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ACE150250FM+H Datenblatt(PDF) 1 Page - ACE Technology Co., LTD.

Teilenummer ACE150250FM+H
Bauteilbeschribung  150KHz,2A, PWM Step-Down DC/DC Converter
Download  13 Pages
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Hersteller  ACE [ACE Technology Co., LTD.]
Direct Link  http://www.ace-ele.com
Logo ACE - ACE Technology Co., LTD.

ACE150250FM+H Datenblatt(HTML) 1 Page - ACE Technology Co., LTD.

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ACE150X
                        Technology
150KHz,2A, PWM Step-Down DC/DC Converter
VER 1.2
Description
The ACE150x series are monolithic IC designed for a step-down DC/DC converter, and own the ability of
driving 2A load without additional transistor. It saves board space.
The Internal compensation makes feedback control having good line and load regulation without
external design. Regarding protected function, thermal shutdown is to prevent over temperature operating
from damage, and current limit is against over current operating of the output switch. If current limit
function occurs and VFB is down below 0.5V, the switching frequency will be reduced.
The ACE150x series operate at a switching frequency of 150KHz. Other features include a guaranteed
+4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on
the oscillator frequency. The output version included fixed 3.3V, 5V, 12V, and an adjustable type. The
chips are available in a standard 8-lead SOP-8 package..
Features
Guaranteed 2A output current
3.3V, 5V, 12V and adjustable output versions
Thermal shutdown and current limit protection
Internal oscillator of 150kHz fixed frequency.
Built-in TTL On/Off control
Application
One Channel switching regulators
LCD Monitors
High-efficiency step-down regulator
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Input supply voltage
VCC
24
V
ON/OFF Pin Input Voltage
VSD
-0.3 to +18
V
Feedback Pin Voltage
VFB
-0.3 to +18
V
Output Voltage to Ground
VOUT
-1
V
Power Dissipation
PD
Internally Limited W
Thermal resistance junction to ambient
SOP-8
θJA
70
OC/W
Operating junction temperature
TJ
150
OC
Storage temperature range
TSTG
- 60 to 150
OC
Operating temperature
TOPR
-40 to +125
OC
Note : Exceeding these rating could cause damage to the device. All voltages are with respect to Ground. Currents are positive
into, negative out of the specified terminal.


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