BD18IC0WEFJ-E2 ROHM Semiconductor, BD18IC0WEFJ-E2 Datasheet - Page 17

• Manufacturer Part Number: BD18IC0WEFJ-E2
• Description: Low Dropout Controllers - LDO LDO Reg Pos 1.8V 1A
• Manufacturer: ROHM Semiconductor

Specifications of BD18IC0WEFJ-E2

• Rohs: yes
• Input Voltage Max: 5.5 V
• Output Voltage: 1.8 V
• Output Current: 1 A
• Load Regulation: 75 mV
• Output Type: Fixed
• Number Of Outputs: 1
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: HTSOP-8
• Input Voltage Min: 2.4 V
• Maximum Power Dissipation: 2110 mW
• Minimum Operating Temperature: - 25 C

●Input-to-Output Capacitor
●Equivalent Series Resistance ESR (Output Capacitor)
TSZ22111･15･001
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BDxxIC0WEFJ / BDxxIC0WHFV
It is recommended that a capacitor (over 1uF) is placed nearby pin between Input pin and GND, output pin and GND.
A capacitor, between input pin and GND, is valid when the power supply impedance is high or drawing is long. Also as for a
capacitor, between output pin and GND, the greater the capacity, more sustainable the line regulation and it makes
improvement of characteristics by load change. However, please check by mounted on a board for the actual application.
Ceramic capacitor usually has difference, thermal characteristics and series bias characteristics, and moreover capacity
decreases gradually by using conditions.
For more detail, please be sure to inquire the manufacturer, and select the best ceramic capacitor.
Please attach an anti-oscillation capacitor between V
GND. Capacitor usually has ESR(Equivalent Series
Resistance), and operates stable in ESR-I
right. Generally, ESR of ceramic, tantalum and electronic
capacitor etc. is different for each, so please be sure to
check a capacitor which is going to use, and use it inside
the stable operating region, showed right. Then, please
evaluate for the actual application.
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
0
0
Ceramic capacitor capacity – DC bias characteristics
Rated Voltage:10V
F characteristics
O
1
range, showed
(Characteristics example)
DC Bias Voltage [V]
O
and
17/23
2
Rated Voltage：10V
B characteristics
10.00
1.00
0.10
0.01
Rated Voltage：4V
X6S characteristics
0
3
ESR – I
0.2
Rated Voltage：6.3V
Safety area
B characteristics
Rated Voltage：10V
B1 characteristics
O
0.4
TSZ02201-0R6R0A600160-1-2
characteristics
Io [A]
0.6
C
O
4
=1uF
0.8
6.July.2012 Rev.001
1
Datasheet