ISL9112
ISL9112 is 1.2A High Efficiency Buck-Boost Regulators manufactured by Renesas.
- Part of the ISL9110 comparator family.
- Part of the ISL9110 comparator family.
features that may be accessed using an I2C bus interface. With a programmable output voltage range of 1.9V to 5V, the ISL9112 is ideal for applications requiring dynamically changing supply voltages. A programmable slew rate can be selected to provide smooth transitions between output voltage settings.
The ISL9110 and ISL9112 require only a single inductor and very few external ponents. Power supply solution size is minimized by a tiny 3mmx3mm package and a 2.5MHz switching frequency, which further reduces the size of external ponents.
FN7649 Rev.3.00 Jul 26, 2018
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 1.2A
- High efficiency: Up to 95%
- 35µA quiescent current maximizes light-load efficiency
- 2.5MHz switching frequency minimizes external ponent size
- Selectable Forced PWM mode and external synchronization
- I2C Interface (ISL9112)
- Fully protected for overcurrent, over-temperature, and undervoltage
- Small 3mmx3mm TDFN Package
Applications
- Regulated 3.3V from a single Li-ion battery
- Smart phones and tablet puters
- Handheld devices
- Point-of-load regulators
Related Literature
For a full list of related documents, visit our website
- ISL9110, ISL9112 product pages
VIN = 1.8V TO 5.5V
C1 10µF
STATUS OUTPUTS
ISL9110IRTNZ
5 PVIN
LX1
6 VIN 10 MODE
9 EN 8 BAT 7 PG
LX2 VOUT 1
FB 12
L1 2.2µH
VOUT = 3.3V/1A
C2 10µF
GND PGND 11 3
FIGURE 1. TYPICAL APPLICATION
EFFICIENCY...