XR76208EL-Q Datasheet, PDF (2/21 Pages) Exar Corporation – AEC-Q100 Qualified 40V PowerBloxTM 3A/5A/8A Synchronous Step Down COT Regulator

XR76203-Q/XR76205-Q/XR76208-Q
Absolute Maximum Ratings
Stresses beyond the limits listed below may cause perma-
nent damage to the device. Exposure to any Absolute Max-
imum 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 48V¹
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
ESD Rating (Charged device model (CDM) per AEC Q100-011,
Non-corner pins...................................................................±500V
ESD Rating (Charged device model (CDM) per AEC Q100-011,
Corner pins 1, 7, 8, 14, 15, 22, 23, 30..................................±750V
Operating Conditions
PV_IN.................................................................................5V to 40V
V_IN................................................................................5.5V to 40V
SW, ILIM.......................................................................-1V to 40V¹
PGOOD, V_CC, T_ON, SS, EN, FB.................................-0.3V to 5.5V
Switching Frequency........................................100kHz to 800kHz³
Junction Temperature Range................................-40°C to +125°C
XR76203-Q Package Thermal Resistance, _JA..................28°C/W
XR76205-Q Package Thermal Resistance, _JA..................26°C/W
XR76208-Q Package Thermal Resistance, _JA..................25°C/W
XR76203-Q Package Power Dissipation at 25°C....................3.6W
XR76205-Q Package Power Dissipation at 25°C....................3.8W
XR76208-Q Package Power Dissipation at 25°C....................4.0W
Note 1: No external voltage applied.
Note 2: SW pin’s minimum DC range is -1V, transient is -5V for less than
50ns.
Note 3: Recommended frequency
Electrical Characteristics
Unless otherwise noted: T_J= 25°C, V_IN=24V, BST=V_CC, SW=AGND=PGND=0V, C_VCC=4.7uF. Limits applying over the full
operating temperature range are denoted by a “•”
Symbol
Parameter
Power Supply Characteristics
V_IN
Input Voltage Range
I_VIN
VIN Input Supply Current
I_VIN
VIN Input Supply Current (XR76203-Q)
I_VIN
VIN Input Supply Current (XR76205-Q)
I_VIN
VIN Input Supply Current (XR76208-Q)
I_OFF
Shutdown Current
Enable and Under-Voltage Lock-Out UVLO
V_{IH_EN_1} EN Pin Rising Threshold
V_{EN_H_1} EN Pin Hysteresis
V_{IH_EN_2} EN Pin Rising Threshold for DCM/CCM
operation
V_{EN_H_2} EN Pin Hysteresis
Conditions
VCC regulating
Not switching, V_IN = 24V, V_FB = 0.7V
f=300kHz, R_ON=215k, VFB=0.58V
f=300kHz, R_ON=215k, VFB=0.58V
f=300kHz, R_ON=215k, VFB=0.58V
Enable = 0V, V_IN = 12V
Min
Typ
Max Units
●
5.5
40
V
●
0.7
2
mA
12
mA
15
mA
19
mA
1
μA
●
1.8
1.9
2.0
V
70
mV
●
2.8
3.0
3.1
V
100
mV
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Rev 1C