IR3475MTR1PBF International Rectifier, IR3475MTR1PBF Datasheet - Page 7
IR3475MTR1PBF
Manufacturer Part Number
IR3475MTR1PBF
Description
IC BUCK SYNC ADJ 10A PQFN
Manufacturer
International Rectifier
Series
SupIRBuck™r
Type
Step-Down (Buck), PWM - Current Moder
Datasheet
1.IR3475MTRPBF.pdf
(21 pages)
Specifications of IR3475MTR1PBF
Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
0.5 V ~ 12 V
Current - Output
10A
Frequency - Switching
Up to 750kHz
Voltage - Input
3 V ~ 27 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
*
Package / Case
*
Primary Input Voltage
27V
No. Of Outputs
1
Output Voltage
12V
Output Current
10A
No. Of Pins
17
Operating Temperature Range
-40°C To +125°C
Peak Reflow Compatible (260 C)
Yes
Rohs Compliant
Yes
Leaded Process Compatible
Yes
Part Status
Preferred
Package
PQFN / 4 x 5
Circuit
Single Output
Iout (a)
10
Switch Freq (khz)
0 - 750
Input Range (v)
3.0 - 27
Output Range (v)
0.5 - 12
Ocp Otp Uvlo Pre-bias Soft Start And
Constant On-Time + PGOOD + EN + Temp Comp OCP
Digital Home Media
Yes
Mobile Computing
Yes
Industrial 24v Input
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ELECTRICAL SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS FOR RELIABLE OPERATION WITH MARGIN
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over VIN = 12V, 4.5V < VCC < 5.5V, 0°C ≤ T
Control Loop
Supply Current
Forced Continuous Conduction Mode (FCCM)
Gate Drive
Bootstrap PFET
Upper MOSFET
Lower MOSFET
Reference Accuracy
On‐Time Accuracy
Min. Off Time
Soft‐Start Current
DCM Comparator Offset
Feedback Input Current
VCC Supply Current (standby)
VCC Supply Current (dynamic)
FF Shutdown Current
FCCM Start Threshold
FCCM Stop Threshold
Deadtime
Forward Voltage
Static Drain‐to‐Source On‐Resistance
Static Drain‐to‐Source On‐Resistance
* PHASE pin must not exceed 30V.
Recommended VIN Range
Recommended VCC Range
Recommended Output Voltage Range
Recommended Output Current Range
Recommended Switching Frequency
Recommended Operating Junction Temperature
7
PARAMETER
February 16, 2011 | ADVANCED DATASHEET | V1.8 | PD97602
SYMBOL
V
REF
10A Highly Integrated SupIRBuck
V
R
EN = High
Measure at V
V
EN = Low, No Switching
EN = High, F
EN = Low, R
Monitor body diode
conduction on PHASE pin,
Note 1
I(BOOT) = 10mA
VCC = 5V, I
VCC = 5V, I
FB
FF
FB
= 180K, T
= 0.5V
= 0.5V, T
SYMBOL
CONDITIONS
V
VCC
VIN
I
D
D
OUT
F
FF
OUT
T
= 10A, T
= 10A, T
S
A
J
= 300kHz
S
J
= 65°C
= 25°C, Note 1
= 180K
PHASE
J
J
= 25°C
= 25°C
MIN
N/A
4.5
0.5
‐40
3
0
0.495
MIN
‐4.5
280
8
2
5
MAX
27*
750
125
5.5
12
10
TM
J
≤ 125°C.
0.01
TYP
300
500
‐2.5
300
0.5
10
23
25
13
7
2
IR3475
UNITS
0.505
MAX
320
580
0.2
0.6
kHz
12
30
32
17
0
°C
V
A
UNIT
mΩ
mΩ
mV
mA
mV
µA
µA
µA
µA
ns
ns
ns
V
V
V