| PARAMETER | SYMBOL | CONDITIONS | MIN | TYP | MAX | UNITS | |
|---|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | Guaranteed by output accuracy VOUT < VIN - VDO | 1.7 | 5.5 | V | ||
| Input Undervoltage Lockout | VUVLO | VIN rising, 100mV hysteresis | 1.5 | 1.6 | 1.7 | V | |
| Output Voltage Range (MAX38911) | VOUT | Output voltage preprogrammed | 0.8 | 5.0 | V | ||
| Output Voltage Range (MAX38912) | VOUT | Guaranteed by output accuracy, programmed using external resistor-divider | 0.8 | 5.0 | V | ||
| Output Accuracy (MAX38911 only) | ACC | MODE = HIGH, IOUT from 0.1mA to 500mA, VIN from VOUT + 0.3V to 5.5V, VIN > 1.7V | -1 | +1 | % | ||
| MODE = LOW, IOUT from 0.1mA to 20mA, VIN from VOUT + 0.3V to 5.5V, VIN > 1.7V | -1 | +1 | |||||
| Feedback (FB) Accuracy (MAX38912 only) | VFB | MODE = HIGH, IOUT from 0.1mA to 500mA, VIN from VOUT + 0.3V to 5.5V, VIN > 1.7V | 0.594 | 0.6 | 0.606 | V | |
| MODE = LOW, IOUT from 0.1mA to 20mA, VIN from VOUT + 0.3V to 5.5V, VIN > 1.7V | 0.594 | 0.6 | 0.606 | ||||
| Output Capacitance | COUT | Effective capacitance required for stability and proper operation | 2 | 4.7 | µF | ||
| Input Supply Current | ISD | VEN = 0V | TJ = +25°C | 0.01 | 1 | µA | |
| TJ = +125°C | 1.6 | ||||||
| IQ | EN = HIGH, MODE = HIGH, IOUT = 0mA | 332 | 750 | ||||
| EN = HIGH, MODE = LOW, IOUT = 0mA | 19.2 | 50 | |||||
| Line Regulation | ACCLINE_REG | VIN from 3.6V to 5.5V, IOUT = 500mA, VOUT = 3.3V | 0.068 | %/V | |||
| Load Regulation | ACCLOAD_REG | IOUT from 0.1mA to 500mA, VIN = VOUT + 0.3V | 0.078 | % | |||
| Load Transient | IOUT = 50mA to 500mA or 500mA to 50mA, tRISE = tFALL = 1µs | 48 | mV | ||||
| Line Transient | VIN = 2.1V to 2.5V to 2.1V, IOUT = 500mA, tRISE = tFALL = 5µs | 5 | mV | ||||
| Output Transient at MODE Transition | MODE rising or falling, IOUT = 1mA | 20.5 | mV | ||||
| MODE Transition Time | MODE from LOW to HIGH to IOUT = 500mA | 50 | µs | ||||
| Power-Supply Rejection Ratio | PSRR | VIN = 2.1V, VOUT = 1.8V, IOUT = 100mA | f = 1kHz | 80 | dB | ||
| f = 10kHz | 76 | ||||||
| f = 100kHz | 60 | ||||||
| f = 1MHz | 46 | ||||||
| VIN = 3.6V, VOUT = 3.3V, IOUT = 100mA | f = 1kHz | 80 | |||||
| f = 10kHz | 78 | ||||||
| f = 100kHz | 60 | ||||||
| f = 1MHz | 44 | ||||||
| Output Noise | VIN = 2.1V, IOUT = 100mA, 10Hz to 100kHz | CBYP = 47nF | 11.1 | µVRMS | |||
| Dropout Voltage (MAX38911 WLP) (Note 2) | VDO | IOUT = 500mA, when MODE = HIGH | VIN = 5.0V | 24.3 | mV | ||
| VIN = 3.6V | 36 | 100 | |||||
| VIN = 2.0V | 58 | 120 | |||||
| VIN = 1.7V | 83 | 165 | |||||
| Dropout Voltage (MAX38911 TDFN, MAX38912) (Note 2) | VDO | IOUT = 500mA, when MODE = HIGH | VIN = 3.6V | 50 | 100 | mV | |
| VIN = 2.0V | 70 | 200 | |||||
| VIN = 1.7V | 100 | 300 | |||||
| Dropout Voltage (MAX38911, MAX38912) (Note 2) | VDO | IOUT = 20mA, when MODE = LOW | VIN = 3.6V | 25 | 50 | mV | |
| VIN = 2.0V | 48 | 100 | |||||
| VIN = 1.7V | 75 | 150 | |||||
| Maximum Current Limit | ILIM | MODE = HIGH, VOUTS/OUT = 0.9 x VNOMINAL, VOUT_NOMINAL = 1.8V, VIN – VOUT = 500mV | 600 | 700 | 800 | mA | |
| MODE = LOW, VOUTS/OUT = 0.9 x VNOMINAL, VOUT_NOMINAL = 1.8V | 22 | ||||||
| BYP Capacitor Range | CBYP | 0.001 | 0.1 | µF | |||
| BYP Soft-Start Current | From BYP to GND during startup | 50 | µA | ||||
| EN/MODE Input Threshold | VIH | VIN from 1.7V to 5.5V | VEN and VMODE rising | 0.8 | 1.2 | V | |
| VIL | VIN from 1.7V to 5.5V | VEN and VMODE falling | 0.4 | 0.7 | |||
| EN/MODE Input Leakage Current | IEN_LK, IMODE_LK | VEN and VMODE from 0 to 5.5V | TJ = +25°C | -1 | 0.001 | 1 | µA |
| TJ = +125°C | 0.01 | ||||||
| POK Threshold (MAX38911 TDFN, MAX38912) | VOUT when POK switches | VOUT rising | 88 | 91 | 94 | % | |
| VOUT falling | 88 | ||||||
| POK Voltage Low (MAX38911 TDFN, MAX38912) | VOL | IPOK = 1mA | 10 | 100 | mV | ||
| POK Leakage Current (MAX38911 TDFN, MAX38912) | IPOK_LK | VPOK = 5.5V | TJ = +25°C | -0.1 | 0.001 | 0.1 | µA |
| TJ = +125°C | 0.01 | ||||||
| IN Reverse Current Threshold | VOUT = 3.6V, when VIN falls to 0V | MODE = HIGH | 200 | mA | |||
| MODE = LOW | 10 | ||||||
| Thermal Shutdown Threshold | TJ when output turns on/off | TJ rising | 165 | ˚C | |||
| TJ falling | 150 | ||||||
| Note 1: | Limits over the specified operating temperature and supply voltage range are guaranteed by design and characterization, and production tested at room temperature only. |
| Note 2: | Dropout voltage is defined as (VIN - VOUT) when VOUT is 95% of its nominal value. |
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{"data-trigger":"hover","data-placement":"right","data-toggle":"popover","data-original-title":"\u003cstrong\u003eNote 2\u003c/strong\u003e","data-html":true,"data-content":"Dropout voltage is defined as (VIN - VOUT) when VOUT is 95% of its nominal value."}
{"data-trigger":"hover","data-placement":"right","data-toggle":"popover","data-original-title":"\u003cstrong\u003eNote 2\u003c/strong\u003e","data-html":true,"data-content":"Dropout voltage is defined as (VIN - VOUT) when VOUT is 95% of its nominal value."}
{"data-trigger":"hover","data-placement":"right","data-toggle":"popover","data-original-title":"\u003cstrong\u003eNote 2\u003c/strong\u003e","data-html":true,"data-content":"Dropout voltage is defined as (VIN - VOUT) when VOUT is 95% of its nominal value."}