This IC is a power management IC for automotive devices and is composed of a 2 channel step-down switching regulator (step-down DC-DC converter) and a 1 channel voltage regulator (LDO regulator).
It has a high maximum operating voltage of 16 V and maintains a high accuracy of ±2.0% for each output voltage. step-down DC-DC converter operates via PWM control thereby achieving both high efficiency and low ripple voltage. It also has a builtin spread spectrum clock generation circuit capable of reducing conductive noise and emission noise.
Each output has a built-in overcurrent protection circuit to protect the IC and coil from excessive load current and a built-in thermal shutdown circuit to prevent damage from heat generation. The startup sequence for each output is fixed within the IC, so there is no need for control via an external signal, and each output voltage can be automatically and safely supplied by simply providing power.
The use of compact HSNT-8(2030) package allows high-density mounting and contributes to device downsizing.
Features
Step-down DC-DC converter block (Ch1, Ch2)
- Output voltage (Ch1)
- 3.3 V to 5.0 V
- Output voltage (Ch2)
- 0.9 V to 3.0V
- Output current (Ch1)
- 600 mA
- Output current (Ch2)
- 700 mA
- Oscillation frequency
- 2.2 MHz typ.
- Spread spectrum clock generation function
- FSSS = +6% typ. (Diffusion rate)
- Overcurrent protection function
- 1.2 A typ. (Pulse-by-pulse method)
- Short-circuit protection function
- Hiccup control
- Phase shift function
- Shift the oscillation phase of Ch1 and Ch2 by 180°
LDO regulator block (Ch3)
- Output voltage
- 0.9 V to 3.3 V
- Output current
- 300 mA
- Ripple rejection
- 50 dB typ. (VOUT3(S) = 1.8 V, f =100 kHz)
Overall
- Iutput voltage
- 4 V to 16 V
- Output voltage accuracy (Ch1, Ch2, Ch3)
- ±2.0% (Tj = -40°C to +150°C)
- Operation temperature range
- Ta = −40°C to +125°C
- Under voltage lockout function (UVLO)
- 3.35 V typ. (detection voltage)
- Thermal shutdown function
- 170°C typ. (detection temperature)
- Lead-free (Sn 100%), halogen-free
- AEC-Q100 in process*1
*1. Contact our sales representatives for details.
Applications
- Camera module for automotive
- For automotive use (engine, transmission, suspension, ABS, related-devices for EV / HEV / PHEV, etc.)