鈻?/div>
Qualified following the AEC-Q100
requirements (temperature grade 3), see PPAP
for more details.
Temperature range -40
擄C
to 85
擄C
1.5 A DC output current
Operating input voltage from 4.4 V to 36 V
Output voltage adjustable from 1.235 V to 35 V
Low dropout operation: 100 % duty cycle
250 kHz Internally fixed frequency
Voltage feedforward
Zero load current operation
Internal current limiting
Protection against feedback disconnection
Thermal shutdown
The A5972D is a step down monolithic power
switching regulator with a minimum switch current
limit of 1.8 A so it is able to deliver more than
1.5 A DC current to the load depending on the
application conditions.
The output voltage can be set from 1.235V to 35V.
The device uses an internal P-channel D-MOS
transistor (with a typical R
DS(on)
of 250 m鈩? as
switching element to minimize the size of the
external components.
An internal oscillator fixes the switching frequency
at 250 kHz.
Having a minimum input voltage of 4.4 V only, it is
particularly suitable for 5 V bus.
Pulse by pulse current limit with the internal
frequency modulation offers an effective constant
current short circuit protection.
SO-8
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Description
Applications
鈻?/div>
Automotive applications
Figure 1.
Application schematic
33uH
VIN=4.4V to 35V
VCC
COM P
OUT
VO UT=3.3V
C4
C1
10uF
C3
220pF
4.7K鈩?/div>
R3
22nF
A5972D
GND
FB
D1
STPS2L40U
R1
5.6K
C2
100uF
R2
3.3K
May 2008
Rev 3
1/11
www.st.com
1
A5972D_08相關(guān)型號PDF文件下載
-
型號
版本
描述
廠商
下載
-
英文版
1.5A switch step down switching regulator for automotive app...
-
英文版
1.5A switch step down switching regulator for automotive app...
STMICROELECTRON...
-
英文版
2A switch step down switching regulator for automotive appli...
-
英文版
2A switch step down switching regulator for automotive appli...
STMICROELECTRON...
-
英文版
2.5A switch step down switching regulator for automotive app...
-
英文版
2.5A switch step down switching regulator for automotive app...
STMICROELECTRON...
-
英文版
Buck Switching Regulator IC Positive Adjustable 1.235V 1 Out...
-
英文版
Up to 1 A switch step down switching regulator for automotiv...
-
英文版
Up to 1 A switch step down switching regulator for automotiv...
STMICROELECTRON...
-
英文版
Up to 1.5 A step down switching regulator for automotive app...
-
英文版
Up to 1.5 A step down switching regulator for automotive app...
STMICROELECTRON...
-
英文版
Up to 1 A step down switching regulator for automotive appli...
-
英文版
Up to 1 A step down switching regulator for automotive appli...
STMICROELECTRON...
-
英文版
Up to 1.5 A step down switching regulator for automotive app...
-
英文版
Up to 1.5 A step down switching regulator for automotive app...
STMICROELECTRON...
-
英文版
Up to 1.5 A step down switching regulator for automotive app...
-
英文版
Up to 1.5 A step down switching regulator for automotive app...
STMICROELECTRON...
-
英文版
Up to 2 A step down switching regulator for automotive appli...
-
英文版
Up to 2 A step down switching regulator for automotive appli...
STMICROELECTRON...
-
英文版
1.5A switch step down switching regulator for automotive app...
STMICROELECTRONICS
1
2
3
4
5
6
7
8
9
10
11
