BD9123MUV_14 Datasheet, PDF (4/28 Pages) Rohm – Synchronous Buck Converter with Integrated FET

BD9123MUV
Datasheet
Electrical Characteristics
(Ta=25°C VCC=PVCC=5V, VEN=VCC, VVID<2>= VVID <1>= VVID <0>= 0V, unless otherwise specified.)
Parameter
Limit
Symbol
Unit
Min
Typ
Max
Conditions
Standby Current
Active Current
ISTB
-
0
10
µA EN=GND
ICC
-
300
500
µA
EN Low Voltage
VENL
-
GND
0.8
V Standby mode
EN High Voltage
EN Input Current
VENH
IEN
2.0
VCC
-
5
-
V Active mode
10
µA VEN=5V
VID Low Voltage
VVIDL
-
GND
0.8
V
VID High Voltage
VID Input Current
VVIDH
IVID
2.0
VCC
-
5
-
V
10
µA VVID=5V
Oscillation Frequency
fOSC
0.8
1
1.2
MHz
Pch FET ON-Resistance
Nch FET ON-Resistance
RONP
RONN
-
0.35
0.60
Ω PVCC=5V
-
0.25
0.50
Ω PVCC=5V
Output Voltage
VOUT
0.98
1.0
1.02
V
VVID<2:0>=(0,0,0)
ITH SInk Current
ITH Source Current
ITHSI
25
50
ITHSO
25
50
-
µA VOUT =1.2V
-
µA VOUT =0.8V
UVLO Threshold Voltage
VUVLO1
2.4
2.5
2.6
V VCC=5V to 0V
UVLO Release Voltage
Power Good Threshold
VUVLO2
2.425
2.55
2.7
V VCC=0V to 5V
VPGOOD1
70
75
80
% VOUT to 0V
Power Good Release
VPGOOD2
85
90
95
% 0V to VOUT
Power Good Delay
PGOOD ON-Resistance
tPG
2.5
5
10
ms
RONPG
-
140
280
Ω
Soft-Start Time
tSS
0.4
0.8
1.6
ms
Timer Latch Time
Output Short Circuit Threshold Voltage
tLATCH
VSCP
1
2
4
ms
-
VOUTx0.5 VOUTx0.7 V VOUT to 0V
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TSZ02201-0J3J0AJ00120-1-2
02.Oct.2014 Rev.002