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 Key Features Input Voltage (V)  Output Topology  Output Voltage   Output Current Packages
A4402K Automotive Buck Regulator With Integrated
LDO Watchdog Timer And NPOR
6 to 50

VSW
VO2

 Buck
Linear
 Adjustable
6 V - 1.18 V
 1.0 A
250 mA
eTSSOP-16 
A4405K Automotive COT Buck Regulator With Two
Integrated LDO, One LDO Controller,
Extensive FMEA
5.5 to 50 VREG
V5P
V5
V33
 Buck
Linear
Linear
Linear Controller
 5.45 V
5.0 V
5.0 V
3.3 V
 ~1A
405 mA
315 mA
Adjustable
eTSSOP-20
A4406K Automotive COT Buck Regulator With
One Integrated LDO, One LDO Controller
5.5 to 50 VREG
V5P
V33
 Buck
LDO
Linear Controller
  5.45 V
5.0 V
3.3 V
 ~1 A
405 mA
Adjustable
eTSSOP-20
A4407K Automotive COT Buck Regulator With
Two Integrated LDO, Two LDO Controllers
5.5 to 50 VREG
V5P
V5
V3V3
V1V2
 Buck
Linear
Linear
Linear Controller
Linear Controller
 5.45 V
5.0 V
5.0 V
3.3 V
1.2 V
 ~1.5 A
415 mA
310 mA
Adjustable
Adjustable
eTSSOP-24
New
A4408K

Buck or Buck/Boost Pre-Regulator, Synch
Buck, 3 LDOs with Watchdog Timet, NPOR
and FFo/FF1
 2.8 to 36 VREG
V1V2
V5P
V5
V3V3
 Pre-Regulator
Buck
 5.35 V
1.25 V
5.0 V
5.0 V
3.3 V
 ~1 A
0.75 A
325 mA
115 mA
165 mA
eTSSOP-38
A4409K Buck or Buck/Boost Pre-Regulator with Two
LDOs, Window Watchdog Timer and NPOR
3 to 36 VREG
V5P
V50
 Pre-Regulator
Linear
 6.6 V
5.0 V
5.0 V
 750 mA
300 mA
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 Buck or Buck/Boost Pre-Regulator, Synch
Buck, 3 LDOs with Pulse Width Window
Watchdog Timer and NPOR
3.6 to 36  VREG
Vadj
V5P
V5SNR
V5CAN
 Pre-Regulator
Buck
 5.35 V
Adjustable
5.0V
5.0 V
5.0 V
 ~1 A
1.0 A
120 mA
150 mA
200 mA
eTSSOP-38
New
A4412

Buck or Buck/Boost Pre-Regulator, Synch
Buck, 5 LDOs with Pulse Width Window
Watchdog Timer and API

 3.8 to 40 VREG
Vadj
V5P
V5SNR
V5CAN
 Pre-Regulator, SR
Buck, Linear
 5.35 V
Adjustable 5.0 V
5.0 V
5.0 V
5.0 V
3.3 V
 ~1 A
600 mA
200 mA
100 mA
55 mA
30 mA
90 mA
 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 VREG
Vadj
V5P
 (Internal Buck or
Buck-Boost)
5.35 V
Adjustable
5.0 V
 ~1 A
800 mA
75 mA
QFN-32
New
ARG81400
Buck or Buck/Boost Pre-Regulator, Synch Buck,
5 LDOs with Pulse Width Watchdog Timer and SPI
3.8 to 50  VREG
Vadj
V5CAN
V5P
V5A
V5B
3V3
  Pre-Regulator
SR Buck
Linear
Linear
Linear
Linear
Linear
  5.35 V
1.25-3.3 V
5.0 V
5.0 V
5.0 V
5.0 V
3.3 V
  ~1 A
600 mA
200 mA
100 mA
55 mA
30 mA
90 mA
 eTSSOP-38

New
ARG81401

Adjustable Frequency Buck or Buck-Boost
Pre-Regulator with 2 LDOs, Window Watchdog Timer,
and NPOR
3 to 36

VREG
V5
3V3

(Internal Buck or 
Buck-Boost)
6.6 V
5.0 V
3.3 V
750 mA
200 mA
300 mA
eTSSOP-20
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 Independent Buck Regulators, Fixed
Frequency, Multiphase Switching, POR
4.5 to 34 VREG1
VREG2
VREG3
 Buck
Buck
Buck
 VIN to 0.8 V
VIN to 0.8 V
VIN to 0.8 V
 1.5 A
1.5 A
1.5 A
4×4 mm QFN-20
A8450K Buck Regulator + 2 x LDO + 2 LDO
Controllers
6 to 45 VMAIN
V5D
V5A
V33
VADJ
 Buck
Linear
Linear
Linear Controller
Linear Controller
 5.7 V @ 1.0 A
5 V
5 V
3.3 V
1.2 to 3.3 V
 1.0 A
200 mA
200 mA
Adjustable
Adjustable
SOIC-24
A8600K  4 x Buck, Low ISTANDBY, Two High Side
Switches, BU/ACC Detectors
For Infotainment Systems
4.4 to 40 VSW1
VSW2
VSW3
VSW4
 Buck
Buck
Buck
Buck Controller
 Adjustable
Adjustable
Adjustable
Adjustable
 1.0 A (2.5 A pk)
1.0 A (2.5 A pk)
2.0 A (2.5 A pk)
Adjustable
QFP-48
A8601K Boost + 3 x LDO + 2 Charge Pumps.
For LCD Panels Used In
Infotainment Systems
4 to 5.5 VOUT
VDVDD
VAVDD
VCOM
VGH
VGL
 Boost
Linear
Linear
Linear
Charge Pump
Charge Pump
 22 V
5 V
5-14 V
2.9-6.8 V
2.4- 26 V
-12.9 to -5 V
 1.0 A
90 mA
350 mA
110 mA
32 mA
32 mA
eTSSOP-28
A8603K Boost + 2xLDO + 2 Charge Pumps
with I2C, low IQ
3 to 10 VOUT
VAVDD
VCOM
VGH
VGL
 Boost
Linear
Linear
Charge Pump
Charge Pump
 19 V
5 to 15 V
2.5 to 7.5 V
10 to 30 V
-12 to -4 V
 1.5 A
200 mA
36 mA
11 mA
11 mA
QFN-24
A8651K Dual Synch Buck, Adjustable Current Limit,
180° Phase Delay, Low VIN
2.5 to 5.5 VOUT1
VOUT2
 Buck
Buck
 5 to 0.8 V
5 to 0.8 V
 2.0 A
2.0 A
eTSSOP-20

 Note: "K" suffix denotes automotive grade product


The following LED drivers have been discontinued: A4401

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