BA15BC0WT-V5 Rohm Semiconductor, BA15BC0WT-V5 Datasheet - Page 6

• Manufacturer Part Number: BA15BC0WT-V5
• Description: Low Dropout (LDO) Regulators
• Manufacturer: Rohm Semiconductor

Specifications of BA15BC0WT-V5

• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 16 V
• Output Voltage: 1.5 V
• Output Type: Fixed
• Output Current: 1 A
• Line Regulation: 35 mV
• Load Regulation: 75 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 2 W
• Maximum Operating Temperature: + 105 C
• Mounting Style: Through Hole
• Package / Case: TO-220FP(V5)
• Minimum Operating Temperature: - 40 C
• Reference Voltage: 1.28 V
• Lead Free Status / Rohs Status: Details

Vo pin
The capacitance may vary greatly with temperature changes, thus making it impossible to completely prevent oscillation.
Therefore, use a tantalum aluminum electrolytic capacitor with a low ESR (Equivalent Serial Resistance). The output will oscillate
if the ESR is too high or too low, so refer to the ESR characteristics in Fig. 20 and operate the IC within the stable region. Use a
capacitor within a capacitance between 22F and 1,000F.
Below figure , it is ESR-to-Io stability Area characteristics ,measured by 22μＦ-ceramic-capacitor and resistor connected in
series.
This characteristics is not equal value perfectly to 22μＦ-aluminum electrolytic capacitor in order to measurement method.
Note, however, that the stable range suggested in the figure depends on the IC and the resistance load involved, and can vary
with the board’s wiring impedance, input impedance, and/or load impedance. Therefore, be certain to ascertain the final status of
these items for actual use.
Keep capacitor capacitance within a range of 22μF～1000μF. It is also recommended that a 0.33μF bypass capacitor be
connected as close to the input pin-GND as location possible. However, in situations such as rapid fluctuation of the input voltage
or the load, please check the operation in real application to determine proper capacitance.
Precautions
1. Absolute maximum ratings
2. GND voltage
3. Thermal design
4. Inter-pin shorts and mounting errors
5. Actions in strong electromagnetic field
6. Testing on application boards
Iinsert a capacitor between the Vo and GND pins in order to prevent output oscillation.
down the devices, thus making impossible to identify breaking mode, such as a short circuit or an open circuit. If any over rated
values will expect to exceed the absolute maximum ratings, consider adding circuit protection devices, such as fuses.
connection error or if pins are shorted together.
malfunction.
Always discharge capacitors after each process or step. Always turn the IC's power supply off before connecting it to or
removing it from a jig or fixture during the inspection process. Ground the IC during assembly steps as an antistatic
measure. Use similar precaution when transporting or storing the IC.
An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break
The potential of GND pin must be minimum potential in all operating conditions.
Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) in actual operating conditions.
Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any
Use caution when using the IC in the presence of a strong electromagnetic field as doing so may cause the IC to
When testing the IC on an application board, connecting a capacitor to a pin with low impedance subjects the IC to stress.
IC
Fig.21 Output Equivalent Circuit
OUT
22

F
6/9
0.075
10.0
0.05
1.0
0.1
2.0
0.5
0.2
0
200
Oscillation region
Fig.22 ESR vs IO(22μF)
Stable region
Oscillation region
400
600
800
1000
Io [mA]