LD2985 ST Microelectronics, LD2985 Datasheet - Page 10

• Manufacturer Part Number: LD2985
• Description: VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE / WITH INHIBIT FUNCTION
• Manufacturer: ST Microelectronics

LD2985 SERIES
REVERSE CURRENT
The power transistor used in the LD2985 has not an inherent diode connected between the regulator input
and output. If the output is forced above the input, no current will flow from the output to the input across
the series pass transistor. When a V
voltage is applied on the output, the reverse current measured
REV
flows to the GND across the two feedback resistors. This current typical value is 160µA. R
and R
1
2
resistors are implanted type; typical values are, respectively, 42.6 K
and 51.150 K .
Figure 15 : Reverse Current Test Circuit
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