AS1324-BTTT-18 austriamicrosystems, AS1324-BTTT-18 Datasheet - Page 8

• Manufacturer Part Number: AS1324-BTTT-18
• Description: IC CONV BOOST 1.8V SOT23-5
• Manufacturer: austriamicrosystems
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of AS1324-BTTT-18

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 600mA
• Frequency - Switching: 1.5MHz
• Voltage - Input: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5 Thin, TSOT-23-5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AS1324-BTTT-18TR

AS1324
Datasheet - D e t a i l e d D e s c r i p t i o n
8 Detailed Description
The AS1324 is a high-efficiency buck converter that uses a constant-frequency current-mode architecture. The device contains two internal
MOSFET switches and is available in adjustable- and fixed-output voltage versions.
Figure 21. AS1324 - Block Diagram
www.austriamicrosystems.com/DC-DC_Step-Down/AS1324
V
OUT
/V
EN
FB
5
1
R
R
Reference
1
2
Not applicable to AS1324
AS1324-12: R
AS1324-15: R
AS1324-18: R
0.6V
Frequency
OSC
Shift
Shutdown
FB
1
1
1
ΔV
ΔV
0.6V +
+ R
+ R
+ R
0.6V -
0.6V
OVL
OVL
2
2
2
= 600kΩ
= 750kΩ
= 900kΩ
OSCN
Compensator
Ramp
–
+
–
+
+
–
OVDET
Error
Amp
Revision 1.05
Digital
Logic
AS1324
IRCMP
–
+
Through
ICOMP
Shoot
Anti-
+
–
NMOS
PMOS
4
V
3
SW
2
GND
IN
4.7µH
10µF
C
IN
V
V
OUT
C
10µF
IN
8 - 20
OUT