CS2001 Datasheet | onsemi

feature minimizes the power dissipation in both the linear and switcher output devices and saves the cost of using a larger inductor. The NERD (No Energy Reserve Detected) pin is a dual function output. If VOUT is not in regulation, it provides a Power On Reset function whose time interval is externally adjustable with the capacitor. This interval can be seen on the RESETB pin, which allows for clean power- up and power- down of the microprocessor. Once VOUT is in regulation, the logic level of the NERD output (usually low) indicates to the microprocessor whether or not the VER pin is connected. A switched- capacitor voltage tripler accepts input voltage VER and produces output voltage VCHG (typically VER + 8.0 V). This voltage is used in the system to drive high- side FETs. This part is capable of withstanding a 50 V peak transient voltage. The linear regulator will not shut down during this event. Features - Linear Regulator 5.0 V ±2% @ 100 m A - Switching Regulator 1.2 A Peak Internal Switch - Voltage Tripler - Smart Functions - Smartswitch - RESET - Energy Reserve Status - Protection - Overtemperature - Current Limit - 50 V Peak Transient Capability - Internally Fused Leads in SO- 20L Package http://onsemi. 20 1 SO- 20L DWF SUFFIX CASE 751D MARKING DIAGRAM 20 CS2001 AWLYYWW A WL YY WW = Assembly Location = Wafer Lot = Year = Work Week PIN CONNECTIONS 1 VER VBAT VFB GND1 GND2 GND3 GND4 VSW SWSD 20 VOUT RESETB NERD GND8 GND7 GND6 GND5 VCHG IBIAS CPUMP ORDERING INFORMATION Device Package Shipping CS2001YDWF20 SO- 20L 37...