ISL78200 Datasheet, PDF (6/19 Pages) Intersil Corporation – 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter

ISL78200
Absolute Maximum Ratings
VIN, PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +44V
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +6.0V
AUXVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +22V
Absolute Boot Voltage, V_BOOT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +50.0V
Upper Driver Supply Voltage, V_BOOT - V_PHASE. . . . . . . . . . . . . . . . . . . +6.0V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC + 0.3V
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000V
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000V
Latchup Rating (Tested per JESD78B; Class II, Level A) . . . . . . . . . 100mA
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
HTSSOP Package (Notes 4, 5) . . . . . . . . . . . . . . .
35
3.5
Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . . . . . . . . . -65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Supply Voltage on VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 40V
AUXVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20V
Ambient Temperature Range (Automotive). . . . . . . . . . . . . . .-40°C to +105°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379.
5. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Refer to the Block Diagram (page 4) and Typical Application Schematics (page 5). Operating conditions
unless otherwise noted: V_IN = 12V, or V_CC = 4.5V, T_A = -40°C to +105°C. Typicals are at T_A = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +105°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
V_IN SUPPLY
V_IN Pin Voltage Range
Operating Supply Current
V_IN Pin
3.05
40
V
V_IN connected to VCC
3.05
5.5
V
I_Q
MODE = VCC/FLOATING (PFM), no load at the
300
µA
output
MODE = GND (Forced PWM), V_IN = 12V,
non-switching
1.2
mA
Standby Supply Current
INTERNAL MAIN LINEAR REGULATOR
I_{Q_SBY}
EN connected to GND, V_IN = 12V
1.8
3
µA
MAIN LDO V_CC Voltage
MAIN LDO Dropout Voltage
V_CC Current Limit of MAIN LDO
INTERNAL AUXILIARY LINEAR REGULATOR
V_CC
V_{DROPOUT_MAIN}
V_IN > 5V
V_IN = 4.2V, I_VCC = 35mA
V_IN = 3V, I_VCC = 25mA
4.2 4.5 4.8
V
0.3 0.5
V
0.25 0.3
V
60
mA
AUXVCC Input Voltage Range
AUX LDO V_CC Voltage
LDO Dropout Voltage
Current Limit of AUX LDO
V_AUXVCC
V_CC
V_{DROPOUT_AUX}
V_AUXVCC > 5V
V_AUXVCC = 4.2V, I_VCC = 35mA
V_AUXVCC = 3V, I_VCC = 25mA
3
20
V
4.2 4.5 4.8
V
0.3 0.5
V
0.25 0.3
V
60
mA
AUX LDO Switch-over Rising Threshold
AUX LDO Switch-over Falling Threshold
V_{AUXVCC_RISE} AUXVCC voltage rise, switch to auxiliary LDO 2.97 3.1 3.2
V
V_{AUXVCC_FALL}
AUXVCC voltage fall, switch back to main
BIAS LDO
2.73 2.87 2.97 V
AUX LDO Switch-over Hysteresis
V_{AUXVCC_HYS} AUXVCC switch-over hysteresis
0.2
V
6
FN7641.0
September 22, 2011