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Teilenummer | ACE150x |
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Beschreibung | PWM Step-Down DC/DC Converter | |
Hersteller | ACE Technology | |
Logo | ||
Gesamt 13 Seiten ACE150X
Technology 150KHz,2A, PWM Step-Down DC/DC Converter
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
ON/OFF Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground
Power Dissipation
VCC
VSD
VFB
VOUT
PD
24
-0.3 to +18
-0.3 to +18
-1
Internally Limited
V
V
V
V
W
Thermal resistance junction to ambient
SOP-8
θJA
70 OC/W
Operating junction temperature
Storage temperature range
Operating temperature
TJ
TSTG
TOPR
150
- 60 to 150
-40 to +125
OC
OC
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.
www.DataSheet.in
VER 1.2 1
ACE150X
Technology 150KHz,2A ,PWM Step-Down DC/DC Converter
Quick design component selection table for adjustable output
Output
Voltage
(V)
Through Hole Output Capacitor
Panasonic Nichicon
Feed
HFQ Series PL Series forward
(μF/V)
(μF/V) Capacitor
Surface Mount Output Capacitor
Panasonic Nichicon
Feed
HFQ Series PL Series forward
(μF/V)
(μF/V)
Capacitor
2
820/35
820/35
33nF
330/6.3
470/4
33nF
4
560/35
470/35
10nF
330/6.3
390/6.3
10nF
6
470/25
470/25
3.3nF
220/10
330/10
3.3nF
9
330/35
330/25
1.5nF
100/16
180/16
1.5nF
12
330/25
330/25
1nF
100/16
180/16
1nF
15
220/35
220/25
680pF
68/20
120/20
680pF
24
220/35
150/35
560pF
33/25
33/25
220pF
Quick design component selection table for Fixed output
Output Capacitor (μF/V)
Input / Output Condition
Inductor
Through Hole
Surface Mount
Electrolytic
Tantalum
Output
Voltage
(V)
Load
Current
(A)
Max.
input
Voltage
(V)
Inductance Current Nichicon
(μF)
PL
(A) Series
Panasonic
HFQ
Series
Sprague
595D
Series
AVX
TPS
Series
8 22 3.5 560/25 560/25 330/10 220/10
3 15
33 3.5 330/35 330/35 330/10 220/10
5
25 47 3.5 270/35 330/35 330/10 220/10
9 22 3.1 560/16 470/25 330/10 220/10
2 15
68 3.1 180/35 180/35 270/10 100/10
25 68 3.1 180/35 180/35 270/10 100/10
5
22
3.5
560/16
470/25
390/6.3 330/6.3
3 12
22
3.5
560/25
560/35
390/6.3 330/6.3
3.3
25
33
3.5
470/35
680/35
390/6.3 330/6.3
6
22
3.1
470/35
470/25
390/6.3 330/6.3
2 12
33
3.1
330/35
330/35
390/6.3 330/6.3
25 47 3.1 270/50 330/35 330/10 220/10
www.DataSheet.in
VER 1.2 6
6 Page ACE150X
Technology 150KHz,2A ,PWM Step-Down DC/DC Converter
Packing Information
8-Pin Plastic S.O.I.C.
www.DataSheet.in
VER 1.2 12
12 Page | ||
Seiten | Gesamt 13 Seiten | |
PDF Download | [ ACE150x Schematic.PDF ] |
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