特性
- Bidirectional buck, boost, and buck-boost operation
- Input voltage range: 3.8V to 24V (no dead zone)
- Output voltage: up to 20V
- Up to 1MHz switching frequency
- Programmable soft-start time
- LDO output for VDD and VDDP
- System status alert function
- Bidirectional internal discharge function
- Active switching for negative voltage transitions
- Bypass mode in both directions
- Forward mode enable, Reverse mode enable
- OCP, OVP, UVP, and OTP protection
- SMBus and auto-increment I2C compatible
- Pb-free (RoHS compliant)
- 32 Ld 4x4 TQFN Package
描述
The ISL95338 is a bidirectional, buck-boost voltage regulator that provides buck-boost voltage regulation and protection features. The Renesas advanced R3™ Technology provides high light-load efficiency, fast transient response, and seamless DCM/CCM transitions. The ISL95338 takes input power from a wide range of DC power sources (such as conventional AC/DC ADPs, USB PD ports, and travel ADPs) and safely converts it to a regulated voltage up to 20V. The ISL95338 can also convert a wide range DC power source connected at its output (system side) to a regulated voltage to its input (ADP side). This bidirectional buck-boost regulation feature makes its application very flexible. The ISL95338 includes various system operation functions such as Forward mode enable, Reverse mode enable, programmable soft-start time, and adjustable VOUT in both the forward direction and reverse direction. The protection functionalities include OCP, OVP, UVP, and OTP. The ISL95338 has serial communication through SMBus/I2C that allows programming of many critical parameters to deliver a customized solution. These programming parameters include, but are not limited to: output current limit, input current limit, and output voltage setting.
产品参数
| 属性 | 值 |
|---|---|
| Topology [Rail 1] | Buck-Boost |
| Outputs (#) | 1 |
| Input Voltage (Min) (V) | 3.8 |
| Input Voltage (Max) (V) | 24 |
| Output Voltage (Min) (V) | 2 |
| Output Voltage (Max) (V) | 20 |
| Quiescent Current | 130 µA (forward) |
| Switching Frequency Range (Typical) (kHz) | 620 - 620 |
| SYNCH Capability | No |
| Parallelable | No |
| Bi-direction | Yes |
| Control Type | R3 modulator |
| Temp. Range (°C) | -10 to +100°C, -40 to +100°C |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TQFN | 4.0 x 4.0 x 0.70 | 32 | 0.4 |
应用方框图
 | 100W USB Type-C DC 输入模块 多功能 DC/DC 模块，支持 USB PD、PPS、双 Type-C 输出和 4-20V 输入。 |