LD2980CU18TR STMicroelectronics, LD2980CU18TR Datasheet - Page 15

• Manufacturer Part Number: LD2980CU18TR
• Description: IC REG LDO 1.8V 50MA SOT-89
• Manufacturer: STMicroelectronics

Specifications of LD2980CU18TR

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: 2.5 ~ 16 V
• Voltage - Dropout (typical): 0.12V @ 50mA
• Number Of Regulators: 1
• Current - Output: 50mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SC-62, SOT-89, TO-243 (3 Leads + Tab)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Limit (min): -
• Other names: 497-3480-2

7.6
Figure 22. Reverse current test circuit
Reverse current
The power transistor used in the LD2980 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
the output, the reverse current measured, according to the test circuit in
the GND across the two feedback resistors. This current typical value is 160 µA. R
resistors are implanted type; typical values are, respectively, 42.6 kΩ and 51.150 kΩ.
REV
voltage is applied on
Figure
22, flows to
1
and R
15/23
2