BU90054GWZ Datasheet, PDF (4/18 Pages) Rohm – Fast transient response

BU90054GWZ
●Electrical Characteristic(s) (unless otherwise specified VIN=3.6V, Ta=25℃)
Item
【Switching regulator】
Symbol
Output voltage accuracy
VOUTA
Maximum load current
【Soft start】
Soft start time
【Frequency control】
Switching frequency
【Driver】
PchFET on resistance
NchFET on resistance
【Control】
EN pin control ^Operation
voltage
Non Operation
MODE pin ^Operation
control voltage _{Non Operation}
【UVLO】
Protect threshold voltage
Hysteresis
【Current limit】
IoutMAX1
IoutMAX2
IoutMAX3
Tss
fosc
RonP1
RonP2
RonN1
RonN2
VENH
VENL
VMODEH
VMODEL
Uvth
Uvhy
Current limit threshold
ILIMIT
【Output discharge】
Output discharge resistance
【Circuit current】
DRES
Min.
1.764
1.764
-
-
-
65
4.8
-
-
1.4
0
1.4
0
1.95
50
1.5
55
Operating quiescent current
IINS1
-
Shutdown current
SHD
-
Rating
Typ.
1.800
1.800
-
-
-
120
5.4
250
300
220
250
-
-
-
-
2.05
100
1.7
110
45
0
Max.
1.836
1.854
1.0
0.8
0.6
Unit
Condition
MODE:H(PWM Operation)
V
MODE:L(PFM Operation)
A 3.0V≦VIN＜5.5V
A 2.7V≦VIN＜3.0V
A 2.3V≦VIN＜2.7V
240
usec
6.0
MHz No load, MODE:H
400 mOhm VIN=5.0V
450 mOhm VIN=3.6V
350 mOhm VIN=5.0V
380 mOhm VIN=3.6V
VIN
V
0.4
V
VIN
V Forced PWM
0.4
V Automatic PFM/PWM
2.15
V
150
mV
1.9
A
PMOS current detect,
Open loop
220
Ohm EN=0V
EN:H, MODE:L,
65
uA VOUT=3.6V forced
Not switching
1
uA EN=0V
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TSZ22111・15・001
4/15
TSZ02201-0F1F0AG00060-1-2
8.Dec.2014 Rev.002