XR79206EL-F Datasheet, PDF (2/20 Pages) Exar Corporation – 40V, 6A Synchronous Step-Down COT Power Module

XR79206
Absolute Maximum Ratings
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Stresses beyond those listed under
absolute maximum ratings may cause permanent damage
to the device. Exposure to any absolute maximum rating
condition for extended periods may affect device reliability
and lifetime.
PV_IN, V_{IN..........................................................................}-0.3V to 43V
V_{CC...................................................................................}-0.3V to 6.0V
BST.................................................................-0.3V to 48V⁽¹⁾
BST-SW.............................................................. -0.3V to 6V
SW, ILIM......................................................... -1V to 43V⁽¹⁾⁽²⁾
All other pins.......................................... -0.3V to V_CC + 0.3V
Storage temperature..................................... -65°C to 150°C
Junction temperature.................................................. 150°C
Power dissipation....................................... Internally limited
Lead temperature (soldering, 10 seconds)................. 300°C
ESD rating (HBM – human body model)........................ 2kV
ESD rating (CDM – charged device model)................... 2kV
Operating Conditions
PV_IN, V_IN................................................................5V to 40V
SW, ILIM ........................................................ -1V to 40V⁽¹⁾⁽²⁾
PGOOD, V_CC, TON, SS, EN, FB.................... -0.3V to 5.5V
Switching frequency................................. 400kHz-800kHz⁽³⁾
Junction temperature range (T_J).................. -40°C to 125°C
Package power dissipation max at 25°C...................... 5.5W
Package thermal resistance θ_JA............................ 18.1°C/W
NOTES:
1. No external voltage applied.
2. SW pin’s DC range is -1V, transient is -5V for less than 50ns.
3. Recommended frequency for optimum performance.
Electrical Characteristics
T_J = 25°C, V_IN = 24V, BST = V_CC, SW = AGND = PGND = 0V, C_VCC = 4.7μF, unless otherwise specified. Limits applying
over the full operating temperature range are denoted by a •.
Symbol Parameter
Conditions
Power Supply Characteristics
V_IN
Input voltage range
I_VIN
V_IN supply current
V_CC regulating
Not switching, V_IN = 24V, V_FB = 0.7V
f = 500kHz, R_ON = 124kΩ, V_FB = 0.58V
I_OFF
Shutdown current
Enable = 0V, P_VIN = V_IN = 24V
Enable and Undervoltage Lock-Out (UVLO)
V_{IH_EN_1} EN pin rising threshold
V_{EN_HYS_1} EN pin hysteresis
V_{IH_EN_2}
EN pin rising threshold for DCM/
CCM
V_{EN_HYS_2} EN pin hysteresis
V_CC UVLO start threshold
V_CC UVLO hysteresis
Rising edge
• Min
Typ
Max Units
•
5
•
40
V
0.7
2
mA
10
mA
1
µA
•
1.8
1.9
2.0
V
70
mV
•
2.8
3.0
3.1
V
110
mV
• 4.00
4.25
4.40
V
•
195
mV
REV1B
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