GRM188R61E105KA12D 데이터 시트보기 (PDF) - International Rectifier
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GRM188R61E105KA12D
International Rectifier
GRM188R61E105KA12D Datasheet PDF : 45 Pages
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9A Highly Integrated SupIRBuckTM
Single‐Input Vo- l6ta-ge, Synchronous Buck Regulator
PD‐97661
IR3899
ELECTRICAL SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS FOR RELIABLE OPERATION WITH MARGIN
Input Voltage Range*
Input Voltage Range**
Supply Voltage Range***
Supply Voltage Range
Output Voltage Range
Output Current Range
Switching Frequency
Operating Junction Temperature
SYMBOL
PVin
Vin
VCC
Boot to SW
VO
IO
FS
TJ
MIN
1.0
5
4.5
4.5
0.5
0
300
‐40
MAX
21
21
7.5
7.5
0.86xVin
±9
1500
125
UNITS
V
A
kHz
°C
*Maximum SW node voltage should not exceed 25V.
**For internally biased single rail operation. When Vin drops below 6.8V, the internal LDO enters dropout. Please refer to Smart LDO
section and Over Current Protection for detailed application information.
*** Vcc/LDO_Out can be connected to an external regulated supply. If so, the Vin pin should be connected to Vcc/LDO_Out pin.
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over, 6.8V < Vin = PVin < 21V, Vref = 0.5V in 0°C < TJ < 125°C.
Typical values are specified at Ta = 25°C.
PARAMETER
Power Stage
Power Losses
Top Switch
Bottom Switch
Bootstrap Diode Forward Voltage
SW Leakage Current
Dead Band Time
Supply Current
VIN Supply Current (standby)
VIN Supply Current (dynamic)
Vcc/ LDO_ Out
Output Voltage
LDO Dropout Voltage
Short Circuit Current
Zero‐crossing Comparator Delay
SYMBOL
CONDITIONS
MIN TYP MAX UNIT
PLOSS
Rds(on)_Top
Rds(on)_Bot
PVin=Vin = 12V, VO = 1.2V,
IO = 9A, Fs = 600kHz, L = 0.51uH,
Vcc = 6.4V, Note 4
VBoot ‐Vsw=6.4V,IO=9A, Tj =25°C
Vcc = 6.4V, IO = 9A, Tj = 25°C
1.4
W
17.5 22.5
mΩ
8.5 11.0
I(Boot) = 10mA
180 260 470
mV
ISW
SW = 0V, Enable = 0V
SW = 0V, Enable = high, Vp = 0V
1
µA
Tdb
Note 4
5
10
30
ns
Iin(Standby)
Iin(Dyn)
EN = Low, No Switching
EN = High, Fs = 600kHz,
Vin = PVin = 21V
100
µA
12
16
mA
Vcc
Vin(min) = 6.8V, Icc = 0‐30mA,
Cload = 2.2uF, DCM = 0
6.0
6.4
6.7
V
Vin(min) = 6.8V, Icc = 0‐30mA,
Cload = 2.2uF, DCM = 1
4.0
4.4
4.8
Vcc_drop
Ishort
Icc=30mA,Cload=2.2uF
0.7
V
70
mA
Tdly_zc
Note 4
256/Fs
s
6 JANUARY 18, 2013 |DATA SHEET | 3.6
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