IR3899MTRPBF International Rectifier, IR3899MTRPBF Datasheet - Page 6

• Manufacturer Part Number: IR3899MTRPBF
• Description: 9A Highly Integrated Single-Input Voltage, Synchronous Buck Regulator in a PQFN package.
• Manufacturer: International Rectifier

Specifications of IR3899MTRPBF

• Part Status: Active and Preferred
• Package: PQFN / 4 x 5
• Circuit: Single Output
• Iout (a): 9
• Switch Freq (khz): 0 - 1500
• Input Range (v): 1.0 - 16
• Output Range (v): 0.5 - 12
• Pbf: PbF Option Available

ELECTRICAL SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS FOR RELIABLE OPERATION WITH MARGIN
*Maximum SW node voltage should not exceed 25V.
** 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 < T
Typical values are specified at T
Input Voltage Range
Input Voltage Range
Supply Voltage Range
Supply Voltage Range
Output Voltage Range
Output Current Range
Switching Frequency
Operating Junction Temperature
Power Stage
Supply Current
Vcc/ LDO_ Out
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
LDO Dropout Voltage
Short Circuit Current
Zero‐crossing Comparator Delay
Zero‐crossing Comparator Offset
PARAMETER
6
FEBRUARY 02, 2012 |DATA SHEET | 3.3
a
= 25°C.
Single‐Input Voltage, Synchronous Buck Regulator
SYMBOL
R
R
I
Tdly_zc
in(Standby)
V
Vos_zc
ds(on)_Top
ds(on)_Bot
Ishort
I
P
in(Dyn)
cc_drop
I
T
V
LOSS
SW
db
cc
- 6 -
PVin=Vin
I
Vcc = 6.4V, Note 4
VBoot ‐Vsw=6.4V,I
Vcc = 6.4V, I
I(Boot) = 10mA
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, Io = 0‐30mA,
Cload = 2.2uF, DCM = 0
Vin(min) = 6.8V, Io = 0‐30mA,
Cload = 2.2uF, DCM = 1
O
9A Highly Integrated SupIRBuck
= 9A, Fs = 600kHz, L = 0.51uH,
= 12V, V
CONDITIONS
Boot to SW
O
SYMBOL
Note 4
Note 4
= 9A, T
PVin
Vin
V
V
F
I
T
CC
O
O
S
J
O
O
= 1.2V,
=9A, T
j
= 25°C
j
=25°C
MIN
300
‐40
1.0
6.8
4.5
4.5
0.5
0
MIN
180
6.0
4.0
‐4
5
TM
0.86xVin
256/Fs
MAX
7.5**
17.5
1500
TYP
260
8.5
1.4
6.4
4.4
21*
125
10
12
70
7.5
21
±9
0
J
< 125°C.
IR3899
MAX
22.5
11.0
470
100
6.7
4.8
0.7
30
16
1
4
PD‐97661
UNITS
kHz
°C
V
A
UNIT
mΩ
mV
mA
mA
mV
µA
µA
ns
W
V
V
s