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EnglishAPW8700 Dual-Phase Synchronous-Rectifier Buck Controller,The APW8700, two-phase PWM control IC, provides a precision voltage regulation system for advanced graphic card and motherboard application
Features
Voltage-Mode Operation with Current Sharing
Operate with 4.5V~13.2V Supply Voltage
Support Single and Two-Phase Operations
+2% Reference Voltage Accuracy Over
Temperature
Loss-Less Inductor DCR Current Sensing
Adjustable Over Current Protection use DCR
Current Sensing
Programmable PWM Switching Frequency from
100kHz to 800kHz
Dynamic Output Voltage Adjustment
Adjustable Soft-start
QFN4x4-24 Package
Halogen and Lead Free Available (RoHS Compliant)
General Description
The APW8700, two-phase PWM control IC, provides a
precision voltage regulation system for advanced graphic
card and motherboard applications. The integration of
power MOSFET drivers into the controller IC and reduces
the number of external parts for a cost and space saving
power management solution.
The APW8700 uses a voltage-mode PWM architecture,
operating with adjust frequency from 100kHz to 800kHz.
The device uses the voltage across the DCRs of the in-
ductors for current sensing achieves high efficiency. The
device integrates adjustable load line voltage position-
ing (droop) and adopts low side RDS_ON for channel-cur-
rent balance.
The automatic phase reduction and over-current protec-
tion are accomplished through continuous inductor DCRs
current sensing.
The APW8700 also implement a one-bit VID control op-
Part_No | Package & Pins | Topology | Architecture | Phase | No. of PWM Outputs | Output Current (max)(A) | Input Voltage (V) | Reference Voltage(V) | Bias Voltage (typ) (V) | Quiescent Current (typ)(uA) | |
min | max | ||||||||||
APW7068 | SOP-14 | Buck | VM | 1 | 1 | 30 | 2.9 | 13.2 | 0.9 | 12 | 8000 |
APW7065 | SOP-8 | Buck | VM | 1 | 1 | 20 | 2.9 | 13.2 | 0.8 | 12 | 5000 |
APW7065C | SOP-8 | Buck | VM | 1 | 1 | 20 | 2.9 | 13.2 | 0.8 | 12 | 5000 |
APW7098 | QFN4x4-24 | Multiphase | VM | 2 | 1 | 60 | 3.1 | 13.2 | 0.6 | 12 | 5000 |
APW7120 | SOP-8 | Buck | VM | 1 | 1 | 20 | 2.2 | 13.2 | 0.8 | 5 / 12 | 2100 |
APW7120A | SOP-8 | Buck | VM | 1 | 1 | 20 | 2.2 | 13.2 | 0.8 | 5 / 12 | 2100 |
APW7037/A/B | SOP-8 | Buck | VM | 1 | 1 | 5 | 5 | 13.2 | 1.25 / 0.8 | 5 / 12 | 3000 |
APW7057 | SOP-8 | Buck | VM | 1 | 1 | 10 | 3.3 | 5.5 | 0.8 | 5 | 2100 |
APW7062B | SOP-14 | Buck | VM | 1 | 1 | 10 | 5 | 13.2 | 0.8 | 12 | 2000 |
APW7066 | TSSOP-24 | Buck | VM | 1 | 2 | 20 | 5 | 13.2 | 0.6 | 5 / 12 | 4000 |
APW7067N | SOP-14 | Buck | VM | 1 | 1 | 30 | 2.9 | 13.2 | 0.9 | 12 | 4000 |
APW7073 | SOP-14 | Buck | VM | 1 | 1 | 30 | 2.2 | 13.2 | 0.6 | 12 | 5000 |
APW7073A | SOP-14 | Buck | VM | 1 | 1 | 30 | 2.2 | 13.2 | 0.6 | 12 | 5000 |
APW7074 | SOP-14 | Buck | VM | 1 | 1 | 25 | 2.2 | 13.2 | 0.8 | 12 | 5000 |
APW7095/A | LQFP7x7-48 | Buck | VM | 1 | 6 | 0.015 | 1.4 | 6.5 | - | 5 | 1800 |
APW7116 | TSSOP-24P | Buck | VM | 1 | 2 | 20 | 2.97 | 5.5 | 0.8 | 5 / 12 | 5000 |
APW7063 | SOP-14 | Buck | VM | 1 | 1 | 10 | 5 | 13.2 | 0.8 | 12 | 3000 |
APW7064 | SOP-8-P | Buck | VM | 1 | 1 | 30 | 2.9 | 13.2 | 1.2 | 12 | 3000 |
APW7108 | SSOP-28 | Buck | VM | 1 | 2 | 20 | 5 | 24 | 0.9 | 5 | 1200 |
APW7158 | SOP-20 | Buck | VM | 1 | 2 | 20 | 2.2 | 13.2 | 0.6 | 5 / 12 | 4000 |
APW7181 | SOP-8 | VM | 1 | 2 | - | - | - | - | 5 / 12 | 550 | |
APW38HC/42/3/4/5A | DIP-8 | Buck | VM | 1 | 1 | 1 | 1.2 | 9 | 24 | 5 | 9 ~ 24 |
APW7138 | SSOP-16 | Buck | VM | 1 | 1 | 25 | 3 | 25 | 0.6 | 5 | 1700 |
APW7199 | TDFN3x3-10 | Buck | COT | 1 | 1 | 25 | 3 | 25 | 0.5 | 5 | 350 |
APW8700 | QFN4x4-24 | Buck | CM | 2 | 1 | 40 | 4.5 | 13.2 | 0.6 | 5 / 12 | 4000 |
APW8720B | SOP8-P | Buck | VM | 1 | 1 | 20 | 3 | 13.2 | 0.8 | 5 / 12 | 2500 |
APW8722A/B/C/D | SOP8-P | Buck | VM | 1 | 1 | 25 | 3 | 13.2 | 0.6 /0.8 | 5 / 12 | 1200 |
APW8723 | TDFN3x3-10 | Buck | VM | 1 | 1 | 25 | 4 | 13.2 | 0.8 | 5 / 12 | 2000 |
APW8724 | TDFN3x3-10 | Buck | COT | 1 | 1 | 25 | 4.5 | 25 | 0.6 | 5 / 12 | 80 |
APW8725/A | SOP-8P | Buck | VM | 1 | 1 | 25 | 4.5 | 13.2 | 0.8 | 5 / 12 | 16000 |
APW8726 | TQFN3x3-10 | Buck | VM | 1 | 1 | 25 | 4.5 | 13.2 | 0.6 | 5 / 12 | 2500 |
APW8727/L | TDFN3x3-10 | Buck | COT | 1 | 1 | 30 | 3 | 25 | 0.8 | 5 / 12 | 2000 |
APW8728 | TQFN3x3-16 | Buck | COT | 1 | 1 | 30 | 1.8 | 28 | 0.6 | 5 | 600 |
APW8732 | QFN4x4-24 | Buck | VM | 2 | 1 | 50 | 4.5 | 13.2 | 0.6 | 5 / 12 | 5000 |
APW8811 | TQFN4x4-24 | Buck | COT | 1 | 2 | 15 | 6 | 25 | 2 | N | 550 |
APW8812 | TQFN4x4-24 | Buck | COT | 1 | 2 | 15 | 6 | 25 | 2 | N | 550 |
APW8813/A | TQFN4x4-24 | Buck | COT | 1 | 2 | 20 | 3 | 28 | 0.75 | 5 | 800 |
APW8814 | TQFN3x3-16 | Buck | COT | 1 | 1 | 20 | 1.8 | 28 | 0.75 | 5 | 400 |
APW8815 | QFN3.5x3.5-14 | Buck | COT | 1 | 1 | 20 | 1.8 | 28 | 0.75 | 5 | 400 |
APW8816 | TQFN3x3-16 | Buck | COT | 1 | 2 | 20 | 1.8 | 28 | 0.75 | 5 | 400 |
APW8819 | QFN3x3-20 | Buck | COT | 1 | 2 | 20 | 3 | 28 | 1.8 /1.5 /0.5 | 5 | 740 |
APW8820 | TQFN4x4-24 | Buck | CM | 1 | 2 | 15 | 5 | 28 | 0.5 | N | 3000 |
APW8821 | TDFN3x3-10 | Buck | COT | 1 | 1 | 20 | 1.8 | 28 | 0.5 | 5 | 250 |
APW8822/C | TQFN3x3-20 | Buck | COT | 1 | 2 | 15 | 6 | 25 | 2 | N | 550 |
APW8823A/B | TQFN3x3-20 | Buck | COT | 1 | 2 | 15 | 5.5 | 25 | 0.6 | N | 50 |
APW8868 | TQFN3x3-20 | Buck | COT | 1 | 2 | 20 | 3 | 28 | 0.75 | 5 | 180 |
APW7088 | QFN4x4-24 | Multiphase | VM | 2 | 1 | 60 | 3.1 | 13.2 | 0.85 | 12 | 5000 |
APW7165A/B/C | SOP-8P | Buck | VM | 1 | 1 | 20 | 2.9 | 13.2 | 0.8 | 12 | 16000 |
APW7159A | SOP-20 | Buck | VM | 2 | 2 | 30 | 10 | 13.2 | 1 | 12 | 5000 |
APW8828 | TDFN3x3-10 | Buck | COT | 1 | 1 | 25 | 1.8 | 28 | 0.7 | 5 | 250 |
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