LD39100PU10R STMICROELECTRONICS [STMicroelectronics], LD39100PU10R Datasheet - Page 17

• Manufacturer Part Number: LD39100PU10R
• Description: 1 A, low quiescent current, low noise voltage regulator
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

LD39100XX, LD39100XX12, LD39100XX25
6.2
6.3
Enable function
The LD39100xx features an enable function. When the EN voltage is higher than 2 V, the
device is ON, and if it is lower than 0.8 V, the device is OFF. In shutdown mode, consumption
is lower than 1 µA.
The EN pin does not have an internal pull-up, which means that it cannot be left floating if it
is not used.
Power Good function
Most applications require a flag showing that the output voltage is in the correct range.
The Power Good threshold depends on the adjust voltage. When the adjust is higher than
0.92*V
0.80*V
Good pin is at high impedance. If the output voltage is fixed using an external or internal
resistor divider, the Power Good threshold is 0.92*V
The use of the Power Good function requires an external pull-up resistor, which must be
connected between the PG pin and V
is up to 6 mA. The use of a pull-up resistor for PG in the range of 100 k Ω to 1 M Ω is
recommended. If the Power Good function is not used, the PG pin must remain floating.
ADJ
ADJ
, the Power Good (PG) pin goes to high impedance. If the adjust is below
the PG pin goes to low impedance. If the device is functioning well, the Power
Doc ID 15676 Rev 2
IN
or V
OUT
. The typical current capability of the PG pin
OUT
.
Application information
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