Section
Interactive Design-In Start Page

L497x - L597x
Step Down Switching Regulators
This software is dedicated to support the DC-DC converter design based on STMicroelectronics' monolithic regulators belonging to the L497X and L597X families.  
Related Topics
System Requirements
Java known issues
Copyright notes
L6590 - L6590A
Audio Power Amplifiers
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L497X-L597X Simulation tool Release 2.0 - March 2005
TYPE Io(A) Vo (V) Vin (V) fsw (KHz) EFFIC. (%) CURRENT
LIMITING		 SPECIAL
FUNCTIONS		 PACKAGE
 INH.  SYNC. 
 L4976 1 0.5 to 50 8 to 55 Up to 300 85 Pulse by Pulse
     DIP8/SO16W
 L5970D 1 0.5 to 35 4.4 to 36 250 (fixed) 88 Pulse by Pulse in
frequency foldback		 x x SO8
 L5970AD 1 0.5 to 35 4.4 to 36 500 (fixed) 88 Pulse by Pulse in
frequency foldback		 x x SO8
 L6902D 1 1.23 to 35 8.0 to 36 250 (fixed) 85 Pulse by Pulse in
frequency foldback		     SO8
 L5972D 1.5 1.23 to 35 4.4 to 36 250 (fixed) 88 Pulse by Pulse in
frequency foldback		     SO8 (4+2+2)
 L5973AD 1.5 0.5 to 35 4.4 to 36 500 (fixed) 88 Pulse by Pulse in
frequency foldback		 x x HSOP8
 L5971 1.5 1.26 to 20 6.5 to 28 up to 300 85 Pulse by Pulse +
Hiccup Mode		 x   DIP8/SO16W
 L4971 1.5 3.3 to 50 8 to 55 Up to 300 85 Pulse by Pulse
+ Hiccup Mode		 x   DIP8/SO16W
 L5973D 2 0.5 to 35 4.4 to 36 250 (fixed) 88 Pulse by Pulse in
frequency foldback		 x x HSOP8
 L4978 2 3.3 to 50 8 to 55 Up to 300 85 Pulse by Pulse
+ Hiccup Mode		 x   DIP8/SO16W
 L4973V3.3 3.5 0.5 to 50 8 to 55 Up to 300 86 Pulse by Pulse
+ Hiccup Mode		 x x DIP18
 L4973D3.3 3.5 0.5 to 50 8 to 55 Up to 300 86 Pulse by Pulse
+ Hiccup Mode		 x x SO20
 L4973V5.1 3.5 5.1 to 50 8 to 55 Up to 300 86 Pulse by Pulse
+ Hiccup Mode		 x x DIP18
 L4973D5.1 3.5 5.1 to 50 8 to 55 Up to 300 86 Pulse by Pulse
+ Hiccup Mode		 x x SO20