BD9324EFJ-E2 Rohm Semiconductor, BD9324EFJ-E2 Datasheet - Page 2

• Manufacturer Part Number: BD9324EFJ-E2
• Description: IC CONVERTER REG 4A HTSOP-J8
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of BD9324EFJ-E2

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 18 V
• Current - Output: 4A
• Frequency - Switching: 380kHz
• Voltage - Input: 4.75 V ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Operation Range(Ta= -40 85 )
Electrical characteristics (unless otherwise specified VIN=12V Ta=25 )
** Pd, ASO should not be exceeded
*** See the series line-up table below.
Supply Voltage
Output current for BD9322EFJ
Output current for BD9323EFJ
Output current for BD9324EFJ
Error amplifier block
FB input bias current
Feedback voltage
SW block – SW
Hi-side FET On-resistance
Hi-side FET On-resistance
Hi-side FET On-resistance
Lo-side FET On-resistance
Leak current N-channel
Switch Current Limit for BD9322EFJ
Switch Current Limit for BD9323EFJ
Switch Current Limit for BD9324EFJ
Maximum duty cycle
General
Enable Pull-up current
Enable Threshold voltage
Under Voltage Lockout threshold
Under Voltage Lockout Hysteresis
Soft Start Current
Soft Start Time
Operating Frequency
Circuit Current
Quiescent Current
Series Line-up Table
for BD9322EFJ
for BD9323EFJ
for BD9324EFJ
Parameter
Parameter
ON-RESISTANCE
CURRENT
OUTPUT
LINE-UP
FET
Symbol
M
I
V
I
I
I
R
R
R
R
V
F
LEAKN
LIMIT2
LIMIT3
LIMIT4
V
V
T
I
I
I
I
UVLO
I
DUTY
OSC
QUI
BD9322EFJ
HYS
CC
FB
ON2
ON3
ON4
ONL
EN
SS
FB
EN
SS
0.15
Symbol
2.0 A
I
I
I
V
SW2
SW3
SW4
IN
:
0.886
2/14
4.05
Min
300
2.5
3.5
4.5
0.6
12
23
-
-
-
-
-
-
-
-
-
-
-
BD9323EFJ
Limits
4.75
0.900
Min
0.15
0.10
0.10
0.63
4.40
380
100
Typ
0.10
0.1
0.1
1.6
2.1
10
90
23
41
3.0A
0
-
-
-
:
0.914
0.66
4.75
Max
460
190
4.3
10
34
62
2
-
-
-
-
-
-
-
-
-
-
Typ
12
BD9324EFJ
0.10
4.0 A
Unit
kHz
mA
ms
uA
PA
PA
PA
PA
%
V
:
:
:
:
A
A
A
V
V
V
:
Max
2**
3**
4**
18
Voltage follower
I
I
I
I
V
***
***
***
V
V
V
V
C
V
V
SW
SW
SW
SW
FB
IN
FB
EN
IN
SS
EN
SS
= 1.5V, V
= -0.8A ***
= -0.8A ***
= -0.8A ***
= 0.1A
= 18V , V
= 0V
= 0.1 V
= 0V
rising
= 0.1 uF
= 0V
Conditions
Unit
V
A
A
A
EN
= OPEN
SW
= 0V