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Switching Regulators 
Also see: Sanken Switching Regulators
| Part Number | Topology | Input Voltage | Output | Output Current | Packages | Key Features |
|---|---|---|---|---|---|---|
| A4490 | Buck | 4.5 V to 34 V | 0.8 to 5 V | 2 A peak switch current | 4 × 4 mm QFN-20 | Three outputs, 550 kHz fixed frequency, multiphase switching, independent control of each converter, Power-on-reset flag, Internal compensation, 4 × 4 mm QFN Package, small PCB footprint |
| A8430 | Boost | 2.5 V to 10 V | 36 V max | 300 mA peak switch current | 3×3 mm TDFN-5 | WLED driver for LCD backlight; 1.2 MHz boost converter with integrated 36 V switch in 0.75 mm high 3x3 mm package with TSOT-23-5 footprint |
| A8431 | Boost | 2.5 V to 10 V | 32 V max | 300 mA peak switch current | 2×3 mm TDFN-6 | WLED driver for LCD backlight; 1.2 MHz boost converter with integrated 36 V switch in 0.75 mm high 2x3 mm package with TSOT-23-5 footprint; 35 V overvoltage protection |
| A8434 | Charge pump | 2.5 V to 5.5 V | 1-6 channels, 6 V max | Iout max = 30 mA per channel | 3×3 mm TQFN-16 | 1 MHz six-channel charge pump, adaptive control scheme (1x/1.5x/2x), 30 mA per channel, 0.5% channel current matching, multiple dimming schemes, soft start, OVP |
| A8435 | Charge pump | 2.5 V to 5.5 V | 1-4 channels, 6 V max | Iout max = 30 mA per channel | 3×3 mm TQFN-16 | 1 MHz four-channel charge pump, adaptive control scheme (1x/1.5x), 30 mA per channel, 0.5% channel current matching, multiple dimming schemes, soft start, OVP |
| A8436 | Flyback | 3 V to 5.5 V (or 1.5 V min if Vcc supplied) | Adjustable | Three-level peak switch current: 1 A, 1.2 A, 1.4 A | 3×3 mm TDFN-10 | Xenon flash capacitor charger with integrated 40 V switch, IGBT driver, and single-diode low-leakage feedback |
| A8438 | Flyback | 3 V to 5.5 V (or 1.5 V min if Vcc supplied) | Adjustable | Three-level peak switch current: 1.6 A, 1.8 A, 2 A | 3×3 mm TDFN-10 | Xenon flash capacitor charger with integrated 40 V switch, IGBT driver, and single-diode low-leakage feedback |
| A8439 | Flyback | 3 V to 5.5 V (or 1.5 V min if Vcc supplied) | Adjustable | Eight-level peak switch current: 0.27 A to 1.5 A | 3×3 mm TDFN-10 | Xenon flash capacitor charger with integrated 40 V switch, IGBT driver, continuous or dual diode feedback, low leakage also adds auto refresh function |
| A8483 | Boost | 2.5 V to 10 V | 36 V max | 350 mA peak switch current | 3×3 mm TDFN-5 | 1.2 MHz boost converter for OLED/LCD/VARACTOR/HDTV power, extended (0.9 V to 18 V) input voltage with bias supply, 0.75 mm high 3x3 mm package with TSOT-23-5 footprint |
| A8498 | Buck | 8 V to 50 V | 0.8 V to 24 V | 5 A peak switch current | eSOIC-8 | 50 V maximum input voltage, adjustable output voltage, high efficience, adjustable fixed off-time buck converter |
| A8499 | Buck | 8 V to 50 V | 1.2 V to 24 V | 3 A peak switch current | eSOIC-8 | 50 V maximum input voltage, adjustable output voltage, high efficience, adjustable fixed off-time buck converter |
| A8530 | Charge pump | 2.7 V to 5.5 V | 1-6 channels, for WLED backlight and/or flash/torch | Total Iout max = 320 mA DC | 3×3 mm TQFN-16 | 1 MHz six-channel charge pump, 320 mA total output, adaptive control scheme (1x/1.5x/2x), 30 or 100 mA per channel, 0.5% channel current matching, multiple dimming schemes, soft start, OVP |
| A8697 | Buck | 8 V to 25 V | 0.8 V to 20 V | 7 A peak switch current | eSOIC-8 | 25 V maximum input voltage, adjustable output voltage, high efficience, adjustable fixed off-time buck converter |
| A8698 | Buck | 8 V to 25 V | 0.8 V to 20 V | 5 A peak switch current | eSOIC-8 | 25 V maximum input voltage, adjustable output voltage, high efficience, adjustable fixed off-time buck converter |