Multiple Output Regulators

power switch, boost regulator, voltage regulator ICVoltage conversion and regulation plays a key part in electronics design. In the past, the supply of power rails was more of an afterthought. But today’s designs are more focused on highly efficient power conversion and control, combined with optimization of costs, solution size, and robustness.

Multiple output regulators provide two or more outputs from a single input supply. Outputs can be derived from a combination of buck, LDO, boost, or charge pump topologies depending on the application requirements. Automotive and non-automotive devices are available with a variety of package types, most with exposed pad for excellent thermal dissipation.


See below for our offering of high voltage linear regulator ICs including DC/DC switching converters and LDOs:

Part Number Topology Input Voltage (V)  Output Packages
A4402K Buck + LDO 6 to 50

Buck-1 A / LDO-0.25 A

eTSSOP-16 
A4405K Internal Buck + 3 LDO 5.5 to 50 ~300 mA/ch for 5V
up to ~500 mA for 3.3V
up to ~400 mA for 5VP
eTSSOP-20
A4406K Internal Buck + 2 LDO 5.5 to 50 ~300 mA/ch for 5V
up to ~500 mA for 3.3V
eTSSOP-20
A4407K Internal Buck + 4 LDO 5.5 to 50 ~300 mA/ch for 5V
up to ~250 mA for 5VP
up to ~500 mA for 3.3V
up to ~700 mA for Vadj
eTSSOP-24
New
A4408K

Internal Buck or Buck-Boost
 2.8 to 36 VREG: V1V2
V5P V5 V3V3
eTSSOP-38
A4409K Internal Buck or Buck-Boost
+ 2 LDOs
+ Watchdog + NPOR
3 to 36 VREG: 6.6 V @ 750 mA
V5: 5 V @ 300 mA
V50: 5 V @ 200 mA
eTSSOP-20
A4410K Internal Buck or Buck-Boost
+ 3 LDOs + SR Buck
+ Watchdog + NPOR
2.8 to 36 5 V @ ~255 mA
5 V @ ~155 mA
3.3 V @ ~165 mA
1.25 V @ ~1 A
eTSSOP-38
A4411K Internal Buck or Buck-Boost
+ 3 LDOs + SR Buck
+ Watchdog + NPOR
3.6 to 36 5 V @ ~200 mA
5 V @ ~150 mA
5 V @ ~120 mA
Adj @ ~1 A
eTSSOP-38
A4413
 Buck or Buck/Boost Pre-Regulator,
Synch Buck, 5V Protected LDO,
Pulse Width Window Watchdog
 Timer and NPOR
3.5 to 36  ~1A
800 mA
75 mA

QFN-32
A4490 3 × Buck 4.5 to 34 Each output rated at 2.2 A peak switch current 4×4 mm QFN-20
A4491 3 × Buck 4.5 to 23 Each output rated at 2.2 A peak switch current 4×4 mm QFN-20
A4492 3 × Buck 4.5 to 34 Each output rated at 2.2 A peak switch current 4×4 mm QFN-20
A8450K Internal Buck + 4 LDO 6 to 45 1.2 V to 3.3 V @ 200 mA,
3.3 V @ 200 mA,
2 × 5 V @ 200 mA
SOIC-24
A8600K 4 × Buck 
+2 high-side switches
4.4 to 40 2.5 A peak for regulators 1-3
4 A peak for controller 4
(all thermally limited)
QFP-48
A8601K Internal boost
+3 × LDO
+2 × Charge Pumps
4 to 5.5 VDVDD: 2.4 to (VIN-0.6) V @ 50 mA,
AVDD: 2.4 to 14.8 V @ 200 mA (including VCOM),
VCOM: 2.9 to 6.8 V,
VGH: 2.4 to 26 V @ 14 mA,
VGL: -12.85 to -5 V @ 14 mA
eTSSOP-28
A8603K Internal boost
+2 × LDO
+2 × Charge Pumps with I2C, low IQ
3 to 10 VAVDD: 5 to 15 V @ 200 mA,
VCOM: 2.5 to 7.5 V @ 36 mA,
VGH: 10 to 30 V @ 11 mA,
VGL: -12 to -4 V @ 11 mA
QFN-24

A8651K Buck 2.5 to 5.5 Dual 2 A eTSSOP-20

 Note: "K" suffix denotes automotive grade product


The following LED drivers have been discontinued: A4401

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