NCP81258
NCP81258 is Synchronous Buck MOSFET Driver manufactured by onsemi.
feature allows for a high- efficiency solution even at light load conditions. VCC UVLO ensures the MOSFETs are off when supply voltages are low. A bi- directional Enable pin provides a fault signal to the controller when a UVLO fault is detected.
Features
- Space- efficient 2 mm x 2 mm DFN8 Thermally- enhanced Package
- VCC Range of 4.5 V to 13.2 V
- Internal Bootstrap Diode
- 5 V 3- stage PWM Input
- Zero Current Detect Function Provides Power Saving Operation during Light Load Conditions
- Bi- directional Enable Feature pulls Enable Pin Low during a UVLO
Fault
- Pre- OVP Function Protects Load during HS FET Short
- Adaptive Anti- cross Conduction Circuit Protects against
Cross- conduction during FET Turn- on and Turn- off
- Output Disable Control Turns Off Both MOSFETs via Enable Pin
- VCC Undervoltage Lockout
- These Devices are Pb- free, Halogen- free/BFR- free and are Ro HS pliant
Typical Applications
- Power Solutions for Notebook and Desktop Systems
DFN8 MN SUFFIX CASE 506AA
MARKING DIAGRAM
1 CRMG G
CR = Specific Device Code M = Date Code G = Pb- Free Device (Note: Microdot may be in either location)
PIN CONNECTIONS
BST 1
8 DRVH
PWM 2 EN 3
FLAG 9
7 SW 6 GND
VCC 4
(Top View)
5 DRVL
ORDERING INFORMATION
Device
Package
Shipping†
NCP81258MNTBG DFN8
3000 / Tape &
(Pb- Free)
Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure,...