中文
EnglishThe APW7179/APW7179A consists of two independent 1.5MHz con- stant frequency, current mode, and PWM step-down converters.
Features
1A Output Current on Each Channel
2.7V to 5.5V Input Voltage Range
1.5MHz Constant Frequency Operation
Low Dropout Operation at 100% Duty Cycle
Synchronous Topology
0.6V Low Reference Voltage
Current Mode Operation
Over-Temperature Protection
Over-Current Protection
Up to 94% Efficiency
Internally Compensated
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APW7179 consists of two independent 1.5MHz con-
stant frequency, current mode, and PWM step-down
converters. Each converter integrates a main switch with
a synchronous rectifier for high efficiency without an ex-
ternal Schottky diode. The APW7179 is ideal for powering
portable equipment that runs from a single cell Lithium-
Ion (Li+) battery. Each converter can supply 1A of load
current from a 2.7V to 5.5V input voltage. The output volt-
age can be regulated as low as 0.6V. The APW7179 can
also run at 100% duty cycle for low dropout applications.
相关产品
Part_No | Package & Pins | Topology | Archit ecture | No. of PWM Outputs | Drive Lout (A) | Vin (V) | Fmax(Khz) | Vref (V) | R-Top (milohm) | R-Sync (milohm) | Iq (No load) (uA) | |
min | max | |||||||||||
APW7083 | TQFN5x6-28 | Buck | CM | 1 | 5 | 4.5 | 26 | 380 | 0.8 | 50 | 20 | 1000 |
APW7085 | SOP-8 | Buck | CM | 1 | 2 | 4.5 | 26 | 380 | 0.8 | 100 | 1000 | |
APW7089 | SOP-8P | Buck | CM | 1 | 4 | 4.5 | 26 | 380 | 0.8 | 80 | 1000 | |
APW7104 | SOT-23-5 | Buck | CM | 1 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | 25 |
APW7104A | SOT-23-5 | Buck | CM | 1 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | |
APW7142 | SOP-8 | Buck | CM | 1 | 3 | 4.3 | 14 | 500 | 0.8 | 70 | 70 | 500 |
APW7145 | SOP-8P | Buck | CM | 1 | 3 | 4.3 | 14 | 500 | 0.8 | 55 | 45 | 500 |
APW7153B | TDFN3x3-10 | 3 | 2.6 | 5.5 | 2000 | 0.8 | 110 | 110 | 460 | |||
APW7176 | TDFN3x3-10 | Buck | CM | 2 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | 500 |
APW7176A | TDFN3x3-10 | Buck | CM | 2 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | |
APW7178 | TDFN2x2-6 | Buck | CM | 1 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | 25 |
APW7178A | TDFN2x2-6 | Buck | CM | 1 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | |
APW7179 | TDFN3x3-12 | Buck | CM | 2 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | 25 |
APW7179A | TDFN3x3-12 | Buck | CM | 2 | 1 | 2.7 | 6 | 1500 | 0.6 | 280 | 250 | |
APW7290 | TDFN2x2-8 | CM | 1 | 1 | 3.3 | 8 | 1500 | 0.6 | 280 | 250 | 25 | |
APW7300 | SOP-8 | Buck | CM | 1 | 2 | 4.5 | 24 | 340 | 0.925 | 110 | 110 | 1900 |
APW7301 | SOP-8P | Buck | CM | 1 | 3 | 4.5 | 24 | 340 | 0.925 | 110 | 110 | 1900 |
APW7302 | SOP-8 | Buck | CM | 1 | 2 | 4.5 | 24 | 340 | 0.92 | 130 | 130 | 1900 |
APW7302B | SOP-8P | Buck | CM | 1 | 2 | 4.5 | 24 | 340 | 0.92 | 130 | 130 | 1900 |
APW7303 | SOP-8P | Buck | CM | 1 | 3 | 4.5 | 24 | 340 | 0.92 | 85 | 85 | 1900 |
APW7304 | SOP-8P | Buck | CM | 1 | 4 | 4.5 | 24 | 340 | 0.8 | 85 | 85 | 1900 |
APW7311 | SOP-8P | Buck | CM | 1 | 3 | 4.5 | 24 | 1300 | 0.925 | 110 | 110 | 1900 |
APW7312 | SOP-8 | Buck | CM | 1 | 2 | 4.5 | 24 | 340 | 0.925 | 110 | 110 | 1900 |
APW7313 | SOP-8P | Buck | CM | 1 | 3 | 4.5 | 24 | 340 | 0.925 | 110 | 110 | 1900 |
APW7314 | TSOT-23-8 | Buck | CM | 1 | 2 | 4.5 | 24 | 500 | 0.8 | 150 | 70 | 500 |
APW7322 | SOP-8P | Buck | CM | 1 | 2 | 2.5 | 6 | 1000 | 0.8 | 85 | 75 | 460 |
APW7323 | SOP-8P | Buck | CM | 1 | 3.2 | 2.5 | 6 | 1000 | 0.8 | 85 | 75 | 460 |
APW7324 | SOP-8P | Buck | CM | 1 | 4 | 2.5 | 6 | 500 | 0.8 | 85 | 75 | 460 |
APW7325 | SOP-8P | Buck | CM | 1 | 5 | 2.5 | 6 | 1000 | 0.6 | 65 | 55 | 460 |
APW7334 | SOP-8 | Buck | CM | 1 | 2 | 4.5 | 24 | 340 | 0.8 | 110 | 110 | 1900 |
APW7335 | SOP-8P | Buck | CM | 1 | 3 | 4.5 | 24 | 340 | 0.8 | 110 | 110 | 1900 |
APW7336 | TDFN3x3-10 | Buck | CM | 1 | 2 | 4.5 | 24 | 340 | 0.8 | 110 | 110 | 1900 |
APW7337 | TDFN3x3-10 | Buck | CM | 1 | 3 | 4.5 | 24 | 340 | 0.8 | 110 | 110 | 1900 |
APW8713 | TQFN4x4-23 | Buck | COT | 1 | 6 | 2.7 | 28 | 100~1000 | 0.8 | 30 | 9 | 750 |
APW8802 | TQFN5x6-28 | Buck | COT | 1 | 8 | 3 | 25 | 500 | 0.75 | 12 | 12 | 400 |
APW8804 | TDFN3x3-10 | Buck | CM | 1 | 3 | 2.6 | 6 | 1000 | 0.6 | 65 | 55 | 460 |
APW8805 | TDFN3x3-10 | Buck | CM | 1 | 3 | 2.6 | 6 | 1000 | 0.6 | 75 | 55 | 460 |
APW8807 | TQFN3x3-16 | Buck | COT | 1 | 8 | 6 | 28 | 500 | 0.6 | 24 | 14 | 80 |
APW8824 | TSOT-23-6 | Buck | CM | 1 | 1 | 2.7 | 5.5 | 1500 | 0.6 | 280 | 250 | 25 |
APW8835 | TDFN3x3-10 | Buck | CM | 1 | 3 | 4.5 | 24 | 600 | 0.8 | 70 | 70 | 400 |
APW7414 | TSOT-23-8A | Buck | CM | 1 | 2 | 4.5 | 24 | 500 | 0.788 | 150 | 70 | 1000 |
APW7319 | TSOT-23-8A | Buck | CM | 1 | 2.5 | 4.5 | 24 | 500 | 0.807 | 140 | 60 | 1000 |
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