Datasheet MAX882, MAX883, MAX884 (Maxim) - 4
| Fabricante | Maxim |
| Descripción | 5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 200mA Linear Regulator with Standby Mode |
| Páginas / Página | 17 / 4 — 5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators. … |
| Formato / tamaño de archivo | PDF / 514 Kb |
| Idioma del documento | Inglés |
5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators. ELECTRICAL CHARACTERISTICS (continued). PARAMETER
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5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators ELECTRICAL CHARACTERISTICS (continued)
(VIN = 6V (MAX883) or VIN = 4.3V (MAX882/MAX884), COUT = 2.2µF, STBY or OFF = VIN, SET = GND, LBI = VIN, TJ = -40°C to +85°C, unless otherwise noted. Typical values are at TJ = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
STBY Threshold Voltage V STBY STBY signal falling, MAX882_A 1.15 1.20 1.25 V STBY Hysteresis ∆V STBY MAX882_A 7 mV STBY Input Leakage Current ISTBY V STBY = VIN or 0, MAX882_A ±0.01 ±50 nA VIL OFF In off mode, MAX883_A, MAX884_A 0.4 In on mode, SET = OUT, VIN < 6V, 2.0 OFF Threshold Voltage MAX883_A, MAX884_A V VIH OFF In on mode, SET = OUT, 6V < VIN < 11.5V, 3.0 MAX883_A, MAX884_A OFF Input Leakage Current IOFF V OFF = VIN or 0 ±0.01 ±50 nA 10Hz to 10kHz, SET = OUT, R Output Noise e L = 1kΩ, n 250 µVRMS COUT = 2.2µF (Note 7)
Note 1:
Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature (TJ) within the operat- ing temperature range, unless otherwise noted. Specifications to -40°C are guaranteed by design and not production tested.
Note 2:
(VIN - VOUT) is limited to keep the product (IOUT x (VIN - VOUT)) from exceeding the package power dissipation limits. See Figure 5. Therefore, the combination of high output current and high supply voltage is not tested.
Note 3:
Dropout Voltage is (VIN - VOUT) when VOUT falls to 100mV below its nominal value at VIN = (VOUT + 2V). For example, the
MAX882/MAX883/MAX884
MAX883 is tested by measuring the VOUT at VIN = 7V, then VIN is lowered until VOUT falls 100mV below the measured value. The difference (VIN - VOUT) is then measured and defined as ∆VDO.
Note 4:
Since standby mode inhibits the output but keeps all biasing circuitry alive, the Standby Quiescent Current is similar to the normal operating quiescent current.
Note 5:
Foldback Current Limit was characterized by pulse testing to remain below the maximum junction temperature (not production tested).
Note 6:
The Reverse-Current Protection Threshold is the output/input differential voltage (VOUT - VIN) at which reverse-current protection switchover occurs and the pass transistor is turned off. See the section Reverse-Current Protection in the Detailed Description.
Note 7:
Noise is tested using a bandpass amplifier with two poles at 10Hz and two poles at 10kHz.
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(VIN = 6V (MAX883) or VIN = 4.3V (MAX882/MAX884), COUT = 2.2µF, STBY or OFF = VIN, SET = GND, LBI = VIN, TJ = -40°C to +85°C, unless otherwise noted. Typical values are at TJ = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
STBY Threshold Voltage V STBY STBY signal falling, MAX882_A 1.15 1.20 1.25 V STBY Hysteresis ∆V STBY MAX882_A 7 mV STBY Input Leakage Current ISTBY V STBY = VIN or 0, MAX882_A ±0.01 ±50 nA VIL OFF In off mode, MAX883_A, MAX884_A 0.4 In on mode, SET = OUT, VIN < 6V, 2.0 OFF Threshold Voltage MAX883_A, MAX884_A V VIH OFF In on mode, SET = OUT, 6V < VIN < 11.5V, 3.0 MAX883_A, MAX884_A OFF Input Leakage Current IOFF V OFF = VIN or 0 ±0.01 ±50 nA 10Hz to 10kHz, SET = OUT, R Output Noise e L = 1kΩ, n 250 µVRMS COUT = 2.2µF (Note 7)
Note 1:
Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature (TJ) within the operat- ing temperature range, unless otherwise noted. Specifications to -40°C are guaranteed by design and not production tested.
Note 2:
(VIN - VOUT) is limited to keep the product (IOUT x (VIN - VOUT)) from exceeding the package power dissipation limits. See Figure 5. Therefore, the combination of high output current and high supply voltage is not tested.
Note 3:
Dropout Voltage is (VIN - VOUT) when VOUT falls to 100mV below its nominal value at VIN = (VOUT + 2V). For example, the
MAX882/MAX883/MAX884
MAX883 is tested by measuring the VOUT at VIN = 7V, then VIN is lowered until VOUT falls 100mV below the measured value. The difference (VIN - VOUT) is then measured and defined as ∆VDO.
Note 4:
Since standby mode inhibits the output but keeps all biasing circuitry alive, the Standby Quiescent Current is similar to the normal operating quiescent current.
Note 5:
Foldback Current Limit was characterized by pulse testing to remain below the maximum junction temperature (not production tested).
Note 6:
The Reverse-Current Protection Threshold is the output/input differential voltage (VOUT - VIN) at which reverse-current protection switchover occurs and the pass transistor is turned off. See the section Reverse-Current Protection in the Detailed Description.
Note 7:
Noise is tested using a bandpass amplifier with two poles at 10Hz and two poles at 10kHz.
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