ISL95873
ISL95873 is Buck PWM Controller manufactured by Renesas.
feature
. For maximum efficiency, the converter automatically enters diode-emulation mode (DEM) during light-load conditions, such as system standby.
The ISL95873 accepts a wide 3.3V to 25V input voltage range, making it ideal for systems that run on battery or AC-adapter power sources. It also is a low-cost solution for applications requiring tracking of an external reference voltage during soft-start. When the external reference level meets the internal reference voltage, the ISL95873 switches from the external reference to the internal reference. The external reference is only used during soft-start.
Features
- External reference tracking
- Intersil’s R4™ modulator technology
- Internal pensation
- Fast, optimal transient response
- Input voltage range: 3.3V to 25V
- Output voltage range: 0.5V to 3.3V
- Precision voltage regulation
- ±0.5% System accuracy over -10°C to +100°C
- Output voltage remote sense
- Fixed 300k Hz PWM frequency in continuous conduction
- Proprietary frequency control loop
- Automatic diode emulation mode for highest efficiency
- Power-good monitor for soft-start and fault detection
Applications
- pact buck regulators requiring external tracking
RVCC +5V
CPVCC
CVCC
16 PGND LGATE 15 PVCC 14 VCC 13
RPGOOD
RTN1 RFB1
EXTERNAL REFERENCE VOLTAGE
ROFS1
5 SREF
6 FB 7 OCSET 8 VO
GPIO
1 GND 2 RTN
3 EN 4 REFIN
BOOT 12 UGATE 11 PHASE 10 PGOOD 9
CBOOT
QHS QLS
ROCSET
LO CSEN...