ISL91127IR
ISL91127IR is High Efficiency Buck-Boost Regulator manufactured by Renesas.
tures
- 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 = 2.5V, VOUT = 3.3V)
- High efficiency: up to 96%
- 30µA quiescent current maximizes light-load efficiency
- 2.5MHz switching frequency minimizes external ponent size
- Fully protected for short-circuit, over-temperature and undervoltage
- 20 Ld 4mmx4mm QFN package
Applications
- Handheld and battery powered consumer and medical devices
- Brownout free system voltage for smartphones and tablet PCs
- Wireless munication devices
- 2G/3G/4G RF power amplifiers
VIN = 1.8V TO 5.5V C1 10µF
ISL91127IRNZ
PVIN
LX1
VIN EN MODE
LX2 VOUT
SGND PGND
L1 1µH
VOUT = 3.3V C2 2x22µF
FIGURE 1. TYPICAL APPLICATION: VOUT = 3.3V
EFFICIENCY (%)
VIN = 2.5V
VIN = 3.3V
70 1
VIN = 3.6V VIN =...
