MAX5098A Datasheet, PDF (5/28 Pages) Maxim Integrated Products – Dual, 2.2MHz, Automotive Buck or Boost Converter with 80V Load-Dump Protection

Dual, 2.2MHz, Automotive Buck or Boost
Converter with 80V Load-Dump Protection
ELECTRICAL CHARACTERISTICS (continued)
(VDRV = V_L, V+ = V_L = IN_HIGH = 5.2V or V+ = IN_HIGH = 5.2V to 19V, EN_ = V_L, SYNC = GND, I_VL = 0mA, PGND_ = SGND,
C_BYPASS = 0.22µF (low ESR), C_VL = 4.7µF (ceramic), C_V+ = 1µF (low ESR), C_{IN_HIGH} = 1µF (ceramic), R_{IN_HIGH} = 3.9kΩ, R_OSC = 10kΩ,
T_J = -40°C to +125°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
FSEL_1
FSEL_1 Input High Threshold
FSEL_1 Input Low Threshold
FSEL_1 Input Leakage
ON/OFF
V_IH
V_IL
I_{FSEL_1_LEAK}
2
V
0.8
V
2
µA
ON/OFF Input High Threshold
ON/OFF Input Low Threshold
ON/OFF Input Leakage Current
EN_ INPUTS
V_IH
V_IL
I_{ON/OFF_LEAK}
V_ON/OFF = 5V
2
V
0.8
V
0.26 2.00
µA
EN_ Input High Threshold
V_IH
EN_ Input Hysteresis
V_{EN_HYS}
EN_ Input Leakage Current
I_{EN_LEAK}
POWER-GOOD OUTPUT (PGOOD1, PGOOD2)
EN_ rising
1.9
2.0
2.1
V
0.5
V
-1
+1
µA
PGOOD_ Threshold
PGOOD_ Output Voltage
V_{TPGOOD_}
V_{PGOOD_}
Falling
I_SINK = 3mA
90
92.5
95 % V_{FB_}
0.4
V
PGOOD_ Output Leakage
Current
I_{LKPGOOD_}
V+ = V_L = V_{IN_HIGH} = V_{EN_} = 5.2V,
V_{PGOOD_} = 23V, V_{FB_} = 1V
2
µA
OUTPUT OVERVOLTAGE PROTECTION
FB_ OVP Threshold Rising
FB_ OVP Threshold Falling
THERMAL PROTECTION
V_{OVP_R}
V_{OVP_F}
107
114
121 % V_{FB_}
12.5
V
Thermal Shutdown
Thermal Hysteresis
T_SHDN
T_HYST
Rising
+165
°C
20
°C
Note 2: 100% tested at T_A = +25°C and T_A = +125°C. Specifications at T_A = -40°C are guaranteed by design and not production
tested.
Note 3: Operating supply range (V+) is guaranteed by V_L line regulation test. Connect V+ to IN_HIGH and V_L for 5V operation.
Note 4: Output current is limited by the power dissipation of the package; see the Power Dissipation section in the Applications
Information section.
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