ISL91107IR
ISL91107IR is High Efficiency Buck-Boost Regulator manufactured by Renesas.
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
- Output current: up to 2A (PVIN = 2.8V, VOUT = 3.3V)
- High efficiency: up to 96%
- 45µA quiescent current maximizes light load efficiency
- 2.5MHz switching frequency minimizes external ponent size
- Selectable forced PWM mode
- Fully protected for short-circuit, over-temperature and undervoltage
- Small 3mmx4mm TQFN package
Applications
- Smartphones and tablet PCs
- Wireless munication devices
- Optical modules networking equipment
VIN = 1.8V TO 5.5V
C1 22µF
ISL91107IRTNZ
PVIN
LX1
VIN MODE EN
LX2 VOUT
FB SGND PGND
L1 1µH
VOUT = 3.3V
C2 2x22µF
FIGURE 1. TYPICAL ISL91107IRTNZ APPLICATION
EFFICIENCY (%)
95 VIN = 3.6V 90
VIN = 4.2V
VIN = 2.7V VIN = 3V
VIN =...
