XR76117 Datasheet, PDF (2/18 Pages) Exar Corporation – PowerBloxTM 15A Synchronous

XR76117
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 25V
V_{CC...................................................................................}-0.3V to 6.0V
BST.................................................................-0.3V to 31V⁽¹⁾
BST-SW.............................................................. -0.3V to 6V
SW, ILIM......................................................... -1V to 25V⁽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 second)................... 300°C
ESD rating (HBM – human body model)........................ 2kV
ESD rating (CDM – charged device model)................... 1kV
ESD rating (MM – machine model).............................. 200V
Operating Conditions
PV_IN.......................................................................3V to 22V
V_IN......................................................................4.5V to 22V
V_CC....................................................................4.5V to 5.5V
SW, ILIM ...........................................................-1V to 22V⁽²⁾
PGOOD, TON, SS, EN..................................-0.3V to 5.5V⁽²⁾
Switching frequency.................................... 200kHz-1MHz⁽³⁾
Junction temperature range (T_J).................. -40°C to 125°C
Package power dissipation max at 25°C...................... 3.8W
Package thermal resistance θ_JA.............................. 26°C/W⁽⁴⁾
NOTES:
1. No external voltage applied.
2. SW pin’s DC range is -1V, transient is -5V for less than 50ns.
3. Recommended.
4. Measured on Exar evaluation board.
Electrical Characteristics
Specifications are for operating junction temperature of T_J = 25°C only; limits applying over the full operating junction
temperature range are denoted by a •. Typical values represent the most likely parametric norm at T_J = 25°C, and are
provided for reference purposes only. Unless otherwise indicated, V_IN = 12V, SW = AGND = PGND = 0V, C_VCC = 4.7uF.
Symbol
Parameter
Conditions
• Min
Typ
Max
Units
Power Supply Characteristics
V_IN
Input voltage range
V_CC regulating
V_CC tied to V_IN
5
12
22
•
V
4.5
5.0
5.5
I_VIN
I_VCC
I_VIN
I_OFF
V_IN supply current
V_CC quiescent current
V_IN supply current
Shutdown current
Not switching, V_IN = 12V, V_FB = 0.7V •
Not switching, V_CC = V_IN = 5V,
V_FB = 0.7V
•
f = 800kHz, R_ON = 35.7k,
V_FB = 0.58V
Enable = 0V, PV_IN = V_IN = 12V
0.8
1.3
mA
0.8
1.3
mA
17
mA
1
μA
Enable and Undervoltage Lock-Out UVLO
V_{IH_EN}
V_{EN_HYS}
EN pin rising threshold
EN pin hysteresis
V_CC UVLO start threshold, rising edge
•
1.8
1.9
2.0
V
60
mV
•
4.00
4.25
4.40
V
V_CC UVLO hysteresis
•
100
170
mV
REV1A
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