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| MIC28510_12 Datasheet, PDF (4/30 Pages) Micrel Semiconductor – 75V/4A Hyper Speed Control Synchronous DC/DC Buck Regulator | |||
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Micrel, Inc.
MIC28510
Absolute Maximum Ratings(1)
PVIN to PGND................................................ ï0.3V to +76V
FS to PGND ....................................................ï0.3V to PVIN
PVDD, VDD to PGND ......................................... ï0.3V to +6V
VSW, VCS to PGND .............................. ï0.3V to (PVIN +0.3V)
VBST to VSW ........................................................ ï0.3V to 6V
VBST to PGND .................................................. ï0.3V to 82V
VEN to PGND ...................................... ï0.3V to (VDD + 0.3V)
VFB to PGND....................................... ï0.3V to (VDD + 0.3V)
PGND to SGND ........................................... ï0.3V to +0.3V
Junction Temperature (TJ) ....................................... +150°C
Storage Temperature (TS).........................ï65ï°C to +150ï°C
Lead Temperature (soldering, 10s)............................ 260°C
ESD Rating(2)..............................................................1000V
Operating Ratings(3)
Supply Voltage (PVIN) ....................................... 4.5V to 75V
Bias Voltage (PVDD, VDD).................................. 4.5V to 5.5V
Enable Input (VEN) ................................................. 0V to VDD
Junction Temperature (TJ) ........................ ï40ï°C to +125ï°C
Maximum Power Dissipation......................................Note 4
Package Thermal Resistance(4)
5mm x 6mm MLF® (ï±JA) ....................................36ï°C/W
Electrical Characteristics(5)
PVIN = VFS = 48V, VDD = 5V; VBST â VSW = 5V; TA = 25°C, unless noted. Bold values indicate ï40°C ⤠TJ ⤠+125°C.
Parameter
Condition
Min.
Typ.
Power Supply Input
Input Voltage Range ( PVIN)
4.5
FS Voltage Range
2
VDD Bias Voltage
Operating Bias Voltage (VDD)
Undervoltage Lockout Trip Level
UVLO Hysteresis
VDD Rising
4.5
5
3.2
3.85
380
Quiescent Supply Current (IVDD)
VFB = 1.5V
1.4
Shutdown Supply Current (IVDD)
VDD = VBST = 5.5V, VIN = 48V
SW = unconnected, VEN = 0V
0.7
Reference
Feedback Reference Voltage
Load Regulation
Line Regulation
FB Bias Current
0°C ⤠TJ ⤠85°C (±1.0%)
ï40°C ⤠TJ ⤠125°C (±1.5%)
IOUT = 0A to 4A
PVIN = 4.5 to 75V
VFB = 0.8V
0.792
0.788
-0.5
0.8
0.8
0.04
0.1
0.005
Enable Control
EN Logic Level High
EN Logic Level Low
EN Bias Current
4.5V < VDD < 5.5V
4.5V < VDD < 5.5V
VEN = 0V
1.2
50
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k⦠in series with 100pF.
3. The device is not guaranteed to function outside operating range.
4. PD(MAX) = (TJ(MAX) â TA)/ ï±JA, where ï±JA depends upon the printed circuit layout. See âApplications Information.â
5. Specification for packaged product only.
Max.
75
75
5.5
4.45
3
2
0.808
0.812
0.5
0.4
100
Units
V
V
V
V
mV
mA
mA
V
%
%
µA
V
V
µA
March 2012
4
M9999-030912-A
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