IR3895MPBF IRF [International Rectifier], IR3895MPBF Datasheet - Page 6

• Manufacturer Part Number: IR3895MPBF
• Description: 16A HIGHLY INTERGRATED SUPLRBUCK
• Manufacturer: IRF [International Rectifier]

ELECTRICAL SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS FOR RELIABLE OPERATION WITH MARGIN
*Maximum SW node voltage should not exceed 25V.
**For internally biased single rail operation.
*** Vcc/LDO_out can be connected to an external regulated supply. If so, the Vin input 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 < T
Typical values are specified at T
Power Stage
Supply Current
VCC LDO Output
Input Voltage Range*
Input Voltage Range**
Supply Voltage Range***
Supply Voltage Range
Output Voltage Range
Output Current Range
Switching Frequency
Operating Junction Temperature
Power Losses
Top Switch
Bottom Switch
Bootstrap Diode Forward
Voltage
SW Leakage Current
Dead Band Time
Vin Supply Current (standby)
Vin Supply Current (dynamic)
Output Voltage
VCC Dropout
Short Circuit Current
PARAMETER
6
AUGUST 08, 2012 | DATA SHEET| Rev 3.1
a
= 25°C.
Single‐Input Voltage, Synchronous Buck Regulator
R
SYMBOL
R
I
in(Standby)
V
ds(on)_Top
ds(on)_Bot
Ishort
I
P
in(Dyn)
cc_drop
I
T
V
LOSS
SW
db
cc
Vin
Fs = 600kHz, L = 0.4uH,
Vcc = 6.4V (internal LDO), Note 4
VBoot ‐ Vsw= 6.4V, I
Vcc = 6.4V, I
I(Boot) = 15mA
SW = 0V, Enable = 0V
SW = 0V, Enable = high, Vp = 0V
Note 4
EN = Low, No Switching
EN = High, Fs = 600kHz,
Vin = PVin = 21V
Vin(min) = 6.8V, Icc = 0‐50mA, Cload =
2.2uF, DCM = 0
Vin(min) = 6.8V, Icc = 0‐50mA, Cload =
2.2uF, DCM = 1
Icc=50mA,Cload=2.2uF
= 12V, V
- 6 -P
16A Highly Integrated SupIRBuck
O
O
= 1.2V, I
= 16A, T
CONDITIONS
Boot to SW
SYMBOL
O
PVin
= 16A, T
O
Vin
V
j
V
=25°C
F
I
T
= 16A,
CC
O
O
S
J
j
=25°C
MIN
300
‐40
1.0
6.8
4.5
4.5
0.5
0
MIN
200
6.0
4.0
0.86xVin
MAX
TYP
300
1500
3.4
9.6
4.2
6.4
4.4
20
20
70
±16
125
7.5
7.5
21
21
J
< 125°C.
IR3895
MAX
13.5
4.85
500
100
6.1
6.7
0.8
23
1
PD‐97746
UNITS
kHz
°C
V
A
UNIT
mΩ
mV
mA
mA
µA
µA
ns
W
V
V