bd9324efj ROHM Co. Ltd., bd9324efj Datasheet - Page 2

• Manufacturer Part Number: bd9324efj
• Description: Simple Step-down Switching Regulator With Integrated Compensation
• Manufacturer: ROHM Co. Ltd.

● 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.
● Series Line-up Table
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
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
FB
ON2
ON3
ON4
ONL
EN
SS
CC
FB
EN
SS
0.15
Symbol
2.0 A
I
I
I
V
SW2
SW3
SW4
2/13
IN
Ω
0.886
4.05
300
Min
2.5
3.5
4.5
0.4
12
23
-
-
-
-
-
-
-
-
-
-
-
BD9323EFJ
Limits
4.75
0.900
Min
0.15
0.10
0.10
0.63
4.40
380
100
Typ
－
－
－
0.1
0.1
1.6
2.1
0.10
10
90
23
41
3.0A
0
-
-
-
Ω
0.914
Max
4.75
460
190
0.9
4.3
10
34
62
2
-
-
-
-
-
-
-
-
-
-
Typ
12
－
－
－
BD9324EFJ
0.10
4.0 A
Unit
kHz
mA
uA
ms
μA
μA
μA
μA
%
V
Ω
Ω
Ω
Ω
A
A
A
V
V
V
Ω
Max
2**
3**
4**
18
Voltage follower
I
I
I
I
V
***
***
***
V
V
V
V
V
V
C
SW
SW
SW
SW
FB
IN
FB
EN
IN
SS
EN
SS
= 1.5V, V
= 18V , V
= -0.8A ***
= -0.8A ***
= -0.8A ***
= 0.1A
= 0V
= 0V
= 0.1 V
= 0V
rising
= 0.1 uF
Conditions
Unit
V
A
A
A
EN
= OPEN
SW
= 0V