Description
The YB1220 family is a dual-channel LDO product consisting of 2 independent low noise, low dropout (LDO), linear regulators especially designed for battery-powered equipment and portable device. The regulator achieves a low 300 mV dropout at 200mA 3.3V output and good PSRR of near 50dB at 1K~10KHz frequency.
The YB1220 consumes only 80uA supply current with both regulators enabled and supports different output voltages of full range from 1.2 to 3.6V (pre-set).
The YB1220 is smartly designed to fit in three different pin allocations of SOT23-6 package which offers higher flexibility to users’ PCB layout.

Features
• High Accuracy Output Voltage : + 2%
• Wide Output Voltage Range : 1.2~3.6V
• Each Channel Typical Current : 200mA
• Max. Allowable 300mA Each Channel
• Low Quiescent Current : ~80uA
• Dual Enable Pins Control
• 300mV Dropout at 200mA 3.3V Output
• Stable with 1.0uF Ceramic Capacitor
• Thermal Protection Shutdown
• Output Short-Circuit Current Limit
• Built-In Internal Soft-Start
• Green Package (RoHS) Available

Applications
• Cellular Phone
• White LED Backlighting
• PDA, Notebook, PC
• Digital Camera
• Portable Application
• Wireless LAN
• Battery-Powered Equipment

General Description
For many of today’s microcontroller applications, care must be taken to prevent low-power conditions that can
cause many different system problems. The most common causes are brown-out conditions, where the system supply drops below the operating level momentarily. The second most common cause is when a slowly decaying power supply causes the microcontroller to begin executing instructions without sufficient voltage to sustain volatile memory (RAM), thus producing indeterminate results.

Features:
• Precision voltage monitor
- 2.63V, 2.93V, 3.08V, 4.38V and 4.63V trip points (Typical)
• Manual Reset input
• Reset Time-out Delay:
- Standard: 280 ms (Typical)
- Optional: 2.19 ms, and 35 ms (Typical)
• Power Consumption ≤15 µA max
• No glitches on outputs during power-up
• Active Low Output Options:
- Push-Pull Output and Open-Drain Output
• Active High Output Option:
- Push-Pull Output
• Replacement for (Specification compatible with):
- TC1270, TC1271
- TCM811, TCM812
• Fully static design
• Low voltage operation (1.0V)
• ESD protection:
- ≥4 kV Human Body Model (HBM)
- ≥400V Machine Model (MM)
• Extended (E) Temperature range:
-40°C to +125°C
• Package Options:
- 4-lead SOT-143
- 5-lead SOT-23
- Pb-free Device

Power MOS V® is a new generation of high voltage N-Channel enhancement mode power MOSFETs. This new technology minimizes the JFET effect, increases packing density and reduces the on-resistance. Power MOS V® also achieves faster switching speeds through optimized gate layout.

• Avalanche Energy Rated
• Lower Leakage
• Faster Switching
• FAST RECOVERY BODY DIODE
• TO-247 or Surface Mount D3PAK Package