FN8966 Rev. 2.00

Page 1 of 2

Apr 6, 2018

FN8966

Rev. 2.00

Apr 6, 2018

ISL91301A, ISL91301B

Triple/Quad Output Power Management IC

DATA SHORT

To request the full datasheet, visit the ISL91301A, ISL91301B product pages.

The ISL91301A is a 4-phase, three output programmable

Power Management IC (PMIC) and the ISL91301B is a

4-phase, four output programmable PMIC. They are

optimized with highly efficient, synchronous buck

converters capable of multiphase and single-phase

operations. The devices can deliver 4A per phase

continuous output current for 2.8V to 5.5V supply

voltages or 3A per phase current for wider 2.5V to 5.5V

supply voltages. It features four buck controllers and has

the capability to reconfigure its power stages to these

controllers. This flexibility allows seamless design-in for a

wide range of applications that require high output power

and small solution size.

The ISL91301A and ISL91301B integrate low

ON-resistance MOSFETs and programmable PWM

frequency, allowing the use of very small external

inductors and capacitors. They feature automatic Diode

Emulation and Pulse Skipping modes under light-load

conditions to further improve efficiency and maximize

battery life. The ISL91301A and ISL91301B deliver a

highly robust power solution by featuring a controller

based on the Renesas proprietary R5 Technology. The

controller provides tight output accuracy and load

regulation, ultra-fast transient response, seamless

DCM/CCM transitions, and requires no external

compensation.

In addition to the standard interrupt, chip enable, and

watchdog reset functions, the ISL91301A and ISL91301B

also feature four MPIOs and two GPIOs capable of

other pin mode functions.

Features

• Triple output 2+1+1 phases (ISL91301A) or quad

output single phase (ISL91301B)

• 4A per phase for the 2.8V to 5.5V supply voltage,

VIN_SEL = AVIN

• 3A per phase for the 2.5V to 5.5V supply voltage,

VIN_SEL = GND

• ±0.7% system accuracy, remote voltage sensing

• Programmable PWM frequency from 2MHz to 6MHz

• Independent Dynamic Voltage Scaling (DVS) for each

output

• Soft-start and fault detection (UV, OV, OC, OT),

short-circuit protection

• 2.570mmx2.919mm 42 ball WLCSP with 0.4mm

pitch

Applications

• Smart phones

• Wearable devices

• Tablet PCs

•SSD

• Infotainment

Related Literature

For a full list of related documents, visit our website

• ISL91301A, ISL91301B product pages

(0.1A to 8A)

Sweep (0.1A to 4A)

70

75

80

85

90

95

0.1

1

10

Load (A)

Vin = 3.0V

Vin = 3.8V

Vin = 5.5V

70

75

80

85

90

95

0.1

1

Load (A)

Vin = 3.0V

Vin = 3.8V

Vin = 5.5V