BD8643FV-E2 Rohm Semiconductor, BD8643FV-E2 Datasheet - Page 10

• Manufacturer Part Number: BD8643FV-E2
• Description: IC SWITCH REG 3A W/FET 20SSOP
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of BD8643FV-E2

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 12.6 V
• Current - Output: 3A
• Frequency - Switching: 100kHz ~ 600kHz
• Voltage - Input: 4.5 V ~ 18 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-LSSOP (0.240", 6.10mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Typical application circuit
BD8643FV
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【Condition】
VOUT = 1.2V
fosc = 300kHz
OFFLATCH time = 500µsec
220p
2200p 11k
20k
22µ
2000p
56k
PSET
VIN
VIN
VIN
10k
NC
NC
FC
RT
EN
FB
11
12
13
14
15
16
17
18
19
20
Protect time
OSC
EN
Fig.20 Typical application
10/13
CONTROL
PWM
Softstart/Delay
CURRENT
DET
5V
10
9
8
7
6
5
4
3
2
1
PGND
PGND
GND
SS/DELAY
NC
BOOT
SW
SW
SW
PGND
0.033µ
0.1µ
6.8µ
22µ×2pcs
Technical Note
2010.09 - Rev.A
VOUT