L5970D(2003) Просмотр технического описания (PDF) - STMicroelectronics
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L5970D Datasheet PDF : 10 Pages
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L5970D
PINS CONNECTION (Top View)
OUT
SYNC
INH
COMP
1
8
2
7
3
6
4
5
D98IN955
VCC
GND
VREF
FB
PINS FUNCTION
N.
Name
Description
1
OUT Regulator Output.
2
SYNC Master/slave synchronization.
3
INH A logical signal (active high) disables the device. If INH not used the pin must be grounded.
When it is open an internal pull-up disable the device.
4
COMP E/A output for frequency compensation.
5
FB Feedback input. Connecting directly to this pin results in an output voltage of 1.23V. An external
resistive divider is required for higher output voltages.
6
VREF 3.3V VREF. No cap is requested for stability.
7
GND Ground.
8
VCC Unregulated DC input voltage.
THERMAL DATA
Symbol
Parameter
Rth (j-amb) Thermal Resistance Junction to ambient Max.
(*) Package mounted on board
ABSOLUTE MAXIMUM RATINGS
Symbol
V8
V1
I1
V4, V5
V3
V2
Ptot
Tj
Tstg
Parameter
Input Voltage
Output DC voltage
Output peak voltage at t = 0.1µs
Maximum output current
Analog pins
INH
SYNC
Power dissipation at Tamb ≤ 60°C
Operating junction temperature range
Storage temperature range
Value
120 (*)
Unit
°C/W
Value
Unit
40
V
-1 to 40
V
-5 to 40
V
int. limit.
4
V
-0.3V to VCC
-0.3 to 4
V
0.75
W
-40 to 150
°C
-55 to 150
°C
2/10
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