MIC45212 Datasheet, PDF (4/31 Pages) Micrel Semiconductor – 26V/14A DC-to-DC Power Module

Micrel, Inc.
MIC45212
Absolute Maximum Ratings⁽²⁾
V_PVIN, V_VIN to PGND ....................................... 0.3V to +30V
V_PVDD, V_5VDD, V_ANODE to PGND......................... 0.3V to +6V
V_SW, V_FREQ, V_ILIM, V_EN to PGND ............ 0.3V to (V_IN +0.3V)
V_BST to V_SW ........................................................ 0.3V to 6V
V_BST to PGND .................................................. 0.3V to 36V
V_PG to PGND .................................. 0.3V to (5VDD + 0.3V)
V_FB, V_RIB to PGND .......................... 0.3V to (5VDD + 0.3V)
PGND to GND .............................................. 0.3V to +0.3V
Junction Temperature .............................................. +150°C
Storage Temperature (T_S)......................... 65C to +150C
Lead Temperature (soldering, 10s)............................ 260°C
Operating Ratings⁽³⁾
Supply Voltage (V_PVIN, V_VIN) .............................. 4.5V to 26V
Output Current ............................................................... 14A
Enable Input (V_EN) .................................................. 0V to V_IN
Power Good (V_PG) ............................................. 0V to 5VDD
Junction Temperature (T_J) ........................ 40C to +125C
Junction Thermal Resistance⁽⁴⁾
12mm × 12mm × 4mm QFN-64 (_JA) ............12.6°C/W
12mm × 12mm × 4mm QFN-64 (_JC) .............. 3.5°C/W
Electrical Characteristics⁽⁵⁾
VIN = VEN = 12V, VOUT = 3.3V, VBST  VSW = 5V, TJ = +25ºC. Bold values indicate 40ºC  TJ  +125ºC, unless otherwise noted.
Parameter
Condition
Min.
Typ. Max. Units
Power Supply Input
Input Voltage Range (VPVIN, VIN)
Quiescent Supply Current
(MIC45212-1)
VFB = 1.5V
4.5
26
V
0.75
mA
Quiescent Supply Current
(MIC45212-2)
VFB = 1.5V
2.1
3
mA
Operating Current
Shutdown Supply Current
5VDD Output
VPVIN = VIN = 12V,
VOUT = 1.8V, IOUT = 0A,
fSW = 600kHz
MIC45212-1
MIC45212-2
SW = unconnected, VEN = 0V
0.37
mA
54
0.1
10
µA
5VDD Output Voltage
5VDD UVLO Threshold
5VDD UVLO Hysteresis
LDO Load Regulation
Reference
VIN = 7V to 26V, I5VDD = 10mA
V5VDD rising
V5VDD falling
I5VDD = 0 to 40mA
4.8
5.1
5.4
V
3.8
4.2
4.6
V
400
mV
0.6
2
3.6
%
Feedback Reference Voltage
FB Bias Current
Enable Control
TJ = 25°C
40°C ≤ TJ ≤ 125°C
VFB = 0.8V
0.792
0.784
0.8 0.808
V
0.8 0.816
5
500
nA
EN Logic Level High
1.8
V
EN Logic Level Low
0.6
V
EN Hysteresis
200
mV
EN Bias Current
VEN = 12V
Notes:
2. Exceeding the absolute maximum rating may damage the device.
3. The device is not guaranteed to function outside operating range.
4. JA and JC were measured using the MIC45212 evaluation board.
5. Specification for packaged product only.
5
10
µA
April 28, 2014
4
Revision-1.0