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| MIC27600_11 Datasheet, PDF (4/28 Pages) Micrel Semiconductor – 36V, 7A Hyper Speed Control™ Synchronous DC-DC Buck Regulator | |||
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Micrel, Inc.
MIC27600
Absolute Maximum Ratings(1, 2)
PVIN to PGND................................................ â0.3V to +38V
VIN to PGND ....................................................â0.3V to PVIN
VDD to PGND ................................................... â0.3V to +6V
VSW, VCS to PGND .............................. â0.3V to (PVIN +0.3V)
VBST to VSW ........................................................ â0.3V to 6V
VBST to PGND .................................................. â0.3V to 44V
VEN to PGND ...................................... â0.3V to (VDD + 0.3V)
VFB to PGND....................................... â0.3V to (VDD + 0.3V)
PGND to SGND ........................................... â0.3V to +0.3V
Junction Temperature .............................................. +150°C
Storage Temperature (TS).........................â65°C to +150°C
Lead Temperature (soldering, 10sec)........................ 260°C
Operating Ratings(3)
Supply Voltage (PVIN, VIN)................................. 4.5V to 36V
Bias Voltage (VDD)............................................ 4.5V to 5.5V
Enable Input (VEN) ................................................. 0V to VDD
Junction Temperature (TJ) ........................ â40°C to +125°C
Maximum Power Dissipation......................................Note 4
Package Thermal Resistance(4)
5mm x 6mm MLF® (θJA) ....................................36°C/W
Electrical Characteristics(5)
PVIN = VIN = 12V, VDD = 5V; VBST â VSW = 5V; TA = 25°C, unless noted. Bold values indicate â40°C ⤠TJ ⤠+125°C.
Parameter
Condition
Min.
Typ.
Power Supply Input
Input Voltage Range (VIN, PVIN)
4.5
VDD Bias Voltage
Operating Bias Voltage (VDD)
4.5
Under-Voltage Lockout Trip Level VDD Rising
2.4
UVLO Hysteresis
Quiescent Supply Current
VFB = 1.5V
Shutdown Supply Current
VDD = VBST = 5.5V, VIN = 36V
SW = unconnected, VEN = 0V
Reference
Feedback Reference Voltage
0°C ⤠TJ ⤠85°C (±1.0%)
â40°C ⤠TJ ⤠125°C (±1.5%)
0.792
0.788
Load Regulation
IOUT = 0A to 7A
Line Regulation
VIN = (VOUT + 3.0V) to 36V
FB Bias Current
VFB = 0.8V
DC-DC Converter
Output Voltage Range
3.0V ⤠VHSD ⤠28V
0.8
3.0V ⤠VHSD ⤠36V
0.8
Enable Control
EN Logic Level High
4.5V < VDD < 5.5V
1.2
EN Logic Level Low
4.5V < VDD < 5.5V
EN Bias Current
VEN = 0V
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)/ θJA, where θJA depends upon the printed circuit layout. See âApplications Information.â
5. Specification for packaged product only.
5
2.7
50
1.4
0.7
0.8
0.8
0.2
0.1
5
0.85
0.78
50
Max.
36
5.5
3.2
3
2
0.808
0.812
5.5
3.6
0.4
Units
V
V
V
mV
mA
mA
V
%
%
nA
V
V
V
µA
July 2011
4
M9999-070811
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