ISL91127 Datasheet (Renesas) - High Efficiency Buck-Boost Regulator

ISL91127, High Efficiency Buck-Boost Regulator

PIN # PIN NAMES DESCRIPTION A1, A2, A3 PVIN Power input.

Range: 1.8V to 5.5V.

Connect 2x10μF capacitors to PGND.

B1, B2, B3 LX1 Inductor connection, input side C1, C2 PGND Power ground for high switching current D1, D2, D3 LX2 Inductor connection, output side E1, E2, E3 VOUT Buck-boos

DATASHEET ISL91127 High Efficiency Buck-Boost Regulator with 4.5A Switches FN8418 Rev 5.01 Aug 26, 2022 The ISL91127 is a high-current, buck-boost switching regulator for systems using new battery chemistries.

It uses the Renesas proprietary buck-boost algorithm to maintain voltage regulation while providing excellent efficiency and very low output voltage ripple when the input voltage is close to the output voltage.

The ISL91127 can deliver at least 2.1A continuous output current (VOUT = 3.3

ISL91127 Features

* Accepts input voltages above or below regulated output voltage

* Automatic and seamless transitions between Buck and Boost modes

* Input voltage range: 1.8V to 5.5V

* Continuous output current: up to 2.1A (PVIN = 2.5V, VOUT = 3.3V)

* High efficiency: up to 9