XR76201 Datasheet, PDF (2/16 Pages) Exar Corporation – 40V PowerBloxTM 1.5A Synchronous Step-Down COT Regulator

XR76201
Absolute Maximum Ratings
Stresses beyond the limits listed below 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 VCC + 0.3V
Storage temperature..................................... -65°C to 150°C
Junction temperature.................................................. 150°C
Power dissipation....................................... Internally limited
Lead temperature (soldering, 10 sec)......................... 300°C
ESD rating (HBM - Human Body Model)........................ 2kV
NOTES:
1. No external voltage applied.
2. SW pin’s minimum DC range is -1V, transient is -5V for less than 50ns.
3. Recommended frequency for optimum performance.
Operating Conditions
PV_IN.......................................................................5V to 40V
V_IN.........................................................................5V to 40V
SW, ILIM............................................................-1V to 40V⁽¹⁾
PGOOD, VCC, TON, SS, EN, FB.................... -0.3V to 5.5V
Switching frequency............................. 400kHz to 800kHz⁽³⁾
Junction temperature range.......................... -40°C to 125°C
JEDEC51 package thermal resistance, θ_JA............. 28°C/W
Package power dissipation at 25°C.............................. 3.6W
Electrical Characteristics
Unless otherwise noted: T_J = 25°C, V_IN = 24V, BST = V_CC, SW = AGND = PGND = 0V, C_VCC = 4.7µF. Limits applying over
the full operating temperature range are denoted by a •.
Symbol Parameter
Conditions
• Min
Typ
Max Units
Power Supply Characteristics
V_IN
Input voltage range
V_CC regulating
•
5.5
40
V
I_VIN
V_IN input supply current
Not switching, V_IN = 24V, V_FB = 0.7V
•
0.7
2
mA
I_VIN
V_IN input supply current
f = 300kHz, R_ON = 215k, V_FB = 0.58V
12
mA
I_OFF
Shutdown current
Enable and Under-Voltage Lock-Out UVLO
Enable = 0V, V_IN = 12V
1
µA
V_{IH_EN_1}
V_{EN_H_1}
V_{IH_EN_2}
V_{EN_H_2}
EN pin rising threshold
EN pin hysteresis
EN pin rising threshold for DCM/CCM
operation
EN pin hysteresis
V_CC UVLO start threshold, rising edge
V_CC UVLO hysteresis
•
1.8
1.9
2.0
V
70
mV
•
2.8
3.0
3.1
V
100
mV
•
4.00
4.25
4.40
V
230
mV
REV1A
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