Datasheet LTC3388-1, LTC3388-3 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 20V High Efficiency Nanopower Step-Down Regulator |
| 页数 / 页 | 22 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 381 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC3388-1/LTC3388-3
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are for TA = 25°C (Note 2). Unless otherwise noted, VIN = 5.5V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH D0/D1/EN/STBY Input High Voltage l 1.2 V VIL(D0, D1) D0/D1 Input Low Voltage l 0.4 V VIL(EN,STBY) EN/STBY Input Low Voltage l 150 mV IIH D0/D1/EN/STBY Input High Current 10 nA IIL D0/D1/EN/STBY Input Low Current 10 nA Additional IQ at VIN with EN at VIH(MIN) VEN = 1.2V, VIN = 4V 40 nA Additional IQ at VIN with STBY at VIH(MIN) VSTBY = 1.2V, VIN = 4V 40 nA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings over the –40°C to 125°C operating junction temperature range. Note that may cause permanent damage to the device. Exposure to any Absolute the maximum ambient temperature consistent with these specifications Maximum Rating condition for extended periods may affect device is determined by specific operating conditions in conjunction with board reliability and lifetime. layout, the rated package thermal impedance and other environmental
Note 2:
The LTC3388-1/LTC3388-3 are tested under pulsed load factors. conditions such that TJ ≈ TA. The LTC3388E-1/LTC3388E-3 are
Note 3:
The junction temperature (TJ, in °C) is calculated from the ambient guaranteed to meet specifications from 0°C to 85°C junction temperature. temperature (TA, in °C) and power dissipation (PD, in Watts) according Specifications over the –40°C to 125°C operating junction temperature to the formula: TJ = TA + (PD • θJA), where θJA (in °C/W) is the package range are assured by design, characterization and correlation with thermal impedance. statistical process controls. The LTC3388I-1/LTC3388I-3 are guaranteed
Note 4:
Dynamic supply current is higher due to gate charge being delivered at the switching frequency.
TYPICAL PERFORMANCE CHARACTERISTICS Input IQ vs VIN, UVLO Input IQ vs VIN, No Load Input IQ vs VIN, EN Low
800 1600 1200 D1 = D0 = 0 125°C 125°C 700 125°C 1400 1000 600 1200 85°C 85°C 800 85°C 500 (nA) (nA) 1000 (nA) Q Q 400 25°C Q 25°C 25°C 600 800 INPUT I 300 –40°C INPUT I INPUT I –40°C 400 600 –40°C 200 200 100 400 0 200 0 0 0.5 1 1.5 2 2.5 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) VIN (V) 338813 G01 338813 G02 338813 G03 338813fa 4 For more information www.linear.com/LTC3388 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are for TA = 25°C (Note 2). Unless otherwise noted, VIN = 5.5V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH D0/D1/EN/STBY Input High Voltage l 1.2 V VIL(D0, D1) D0/D1 Input Low Voltage l 0.4 V VIL(EN,STBY) EN/STBY Input Low Voltage l 150 mV IIH D0/D1/EN/STBY Input High Current 10 nA IIL D0/D1/EN/STBY Input Low Current 10 nA Additional IQ at VIN with EN at VIH(MIN) VEN = 1.2V, VIN = 4V 40 nA Additional IQ at VIN with STBY at VIH(MIN) VSTBY = 1.2V, VIN = 4V 40 nA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings over the –40°C to 125°C operating junction temperature range. Note that may cause permanent damage to the device. Exposure to any Absolute the maximum ambient temperature consistent with these specifications Maximum Rating condition for extended periods may affect device is determined by specific operating conditions in conjunction with board reliability and lifetime. layout, the rated package thermal impedance and other environmental
Note 2:
The LTC3388-1/LTC3388-3 are tested under pulsed load factors. conditions such that TJ ≈ TA. The LTC3388E-1/LTC3388E-3 are
Note 3:
The junction temperature (TJ, in °C) is calculated from the ambient guaranteed to meet specifications from 0°C to 85°C junction temperature. temperature (TA, in °C) and power dissipation (PD, in Watts) according Specifications over the –40°C to 125°C operating junction temperature to the formula: TJ = TA + (PD • θJA), where θJA (in °C/W) is the package range are assured by design, characterization and correlation with thermal impedance. statistical process controls. The LTC3388I-1/LTC3388I-3 are guaranteed
Note 4:
Dynamic supply current is higher due to gate charge being delivered at the switching frequency.
TYPICAL PERFORMANCE CHARACTERISTICS Input IQ vs VIN, UVLO Input IQ vs VIN, No Load Input IQ vs VIN, EN Low
800 1600 1200 D1 = D0 = 0 125°C 125°C 700 125°C 1400 1000 600 1200 85°C 85°C 800 85°C 500 (nA) (nA) 1000 (nA) Q Q 400 25°C Q 25°C 25°C 600 800 INPUT I 300 –40°C INPUT I INPUT I –40°C 400 600 –40°C 200 200 100 400 0 200 0 0 0.5 1 1.5 2 2.5 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) VIN (V) 338813 G01 338813 G02 338813 G03 338813fa 4 For more information www.linear.com/LTC3388 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts