BA05ST Rohm Semiconductor, BA05ST Datasheet - Page 9

• Manufacturer Part Number: BA05ST
• Description: IC REGULATOR LDO 5V 1A TO220FP-5
• Manufacturer: Rohm Semiconductor

Specifications of BA05ST

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 6 ~ 25 V
• Number Of Regulators: 1
• Current - Output: 1A (Max)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 Full Pack (Straight Leads)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 25 V
• Output Voltage: 5 V
• Output Type: Fixed
• Output Current: 1 A
• Line Regulation: 100 mV
• Load Regulation: 150 mV
• Maximum Power Dissipation: 2 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Regulator ICs
(9) When the connected load which contains a big inductance component in an output terminal is connected and the
occurrence of a reverse electromotive force can be considered at the time of and power-output OFF at the time of starting,
I ask the insertion of protection diode of you.
(10) Although it is sure that the example of an application circuit should be recommended, in a usage, I fully ask the
validation of a property of you.
In addition, when you alter the circuit constant with outside and you become a usage, please see and decide sufficient
margin in consideration of the dispersion in an external component and IC of our company etc. not only including the static
characteristic but including a transient characteristic.
This IC is monolithic IC and has P+ isolation and P substrate for an isolation between each element.
A P-N junction is formed by these P layers and N layers of each element, and various kinds of parasitic elements are
formed. For example, when the resistor and the transistor are connected with the pin like the example of a simple
architecture,
•At a resistor, it is at the time of GND > (PIN A), at a transistor (NPN), it is at the time of GND > (PIN B),
A P-N junction operates as parasitism diode.
•At a transistor (NPN), it is at the time of GND > (PIN B),
The NPN transistor of a parasitic element operates by N layers of other elements which approach with the
above-mentioned parasitism diode.
A parasitic element is inevitably made according to a potential relation on the architecture of IC.
When a parasitic element operates, the interference of a circuit operation is caused and the cause of a malfunction, as a
result a destructive is obtained.
Therefore, please be fully careful of impressing a voltage lower than GND(P substrate) to an input/output terminal etc. not
to carry out usage with which a parasitic element operates.
(Example)
Output
pin
BAΟΟST / BAΟΟSFP series
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