BD91362MUV Datasheet, PDF (2/5 Pages) Rohm – Silicon Monolithic Integrated Circuit

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○ELECTRICAL CHARACTERISTICS
Parameter
Standby Current
Bias Current
EN Low Voltage
EN High Voltage
EN Input Current
Oscillation Frequency
High-side FET ON Resistance
Low-side FET ON Resistance
FB Reference Voltage1
FB Reference Voltage2
ITH sink current 1
ITH source current 1
ITH sink current 2
ITH source current 2
UVLO Threshold Voltage
UVLO Release Voltage
Soft Start Time
Timer Latch Time
Output Short circuit
Threshold Voltage
Digital I/O (SCL,SDA)
INPUT Low Voltage
INPUT High Voltage
Inflow current
Data Output Low voltage
（Unless otherwise specified , Ta=25℃ VCC=PVCC=5.0V, DVDD =2.5V, EN=VCC）
Limit
Symbol
Unit
Min.
Typ.
Max.
Condition
ISTB
-
0
20
μA EN=0V
ICC
-
500
800
μA
VENL
-
GND
0.8
V
Standby Mode
VENH
2.0
Vcc
-
V
Active Mode
IEN
-
2
10
μA EN=2V
FOSC
0.8
1
1.2
MHz
RONH1
-
60
90
mΩ
RONH2
-
170
255
mΩ
RONL1
-
55
83
mΩ
RONL2
-
130
195
mΩ
FB1
0.985
1.0
1.015
V
±1.5%
FB2
0.985
1.0
1.015
V
±1.5%
ITHSI1
10
18
-
μA VFB1=1.2V
ITHSO1
10
18
-
μA VFB1=0.8V
ITHSI2
10
18
-
μA VFB2=1.2V
ITHSO2
10
18
-
μA VFB2=0.8V
VUVLOL
2.4
2.5
2.6
V
VCC=5→0V
VUVLOH
2.425
2.55
2.7
V
VCC=0→5V
TSS
0.5
1
2
ms
TLATCH
0.5
1
2
ms
SCP/TSD ON
VSCP1
-
0.5
0.7
V
FB1=1.0→0V(initial)
VSCP2
-
0.5
0.7
V
FB2=1.0→0V(initial)
VIL
-
GND 0.2×DVDD
V
VIH
0.8×DVDD DVDD
-
V
IIN
-
0
10
μA SCL=SDA=2.5V
VOL
-
-
0.6
V
IOL=6mA
○PHYSICAL DIMENSION
○PIN No., PIN NAME
○FB Reference voltage
91362
Lot No.
VQFN024V4040 (Unit:mm)
PIN No
1
2
3
4
5
6
7
8
9
10
11
12
PIN NAME
PVCC1
BST
SW1
SW1
SW1
PGND1
PGND1
PGND1
PGND2
SW2
PVCC2
EN
PIN No
13
14
15
16
17
18
19
20
21
22
23
24
PIN NAME
GND
ITH2
FB2
ITH1
FB1
VCC
SCL
SDA
DVDD
N.C
PVCC1
PVCC1
○SETTING THE OUTPUT VOLTAGE
FB1,FB2
0.900 V
0.925 V
0.950 V
0.975 V
1.000 V
(initial)
1.025 V
1.050 V
1.075 V
*FB1,FB2 change after 10usec(max) pass
from setting the voltage by I2C interface
*The time of 1step for FB1,FB2(25mV shift)
take 5usec(max).
*The time that output voltage reaches the
setting value is 0.06msec(max).
VOUT
SW
R2
ADJ
R1
The Output Voltage is set by the external resistor divider and is calculated as：
Vout=(R2/R1+1)×V_FB ・・・ ① V_FB：FB pin feedback Voltage (1.0V typ)
It’ s possible to adjust the output voltage by R1 and R2. (The Vout must be set from 1.0V to 3.3V.
To control I²C BUS,The Vout can be set 0.9～3.475V)
Resistance R1≒10kΩ is recommended. Please confirm the ripple voltage, if you can use
the resistance more than 100kΩ.
REV. C