Product Summary

The SP6123CN is a fixed frequency, voltage mode, synchronous PWM controller designed to work from a single 5V or 3.3V input supply, providing excellent AC and DC regulation for high efficiency power conversion. Requiring only few external components, the SSP6123CN packaged in an 8-pin NSOIC, is especially suited for low voltage applications where cost, small size and high efficiency are critical. The operating frequency is internally set to 300kHz (SP6123CN)allowing small inductor values and minimizing PC board space. The SP6123CN drives an all N-channel synchronous power MOSFET stage for improved efficiency and includes an accurate 0.8V reference for low output voltage applications.

Parametrics

SP6123CN absolute maximum ratings: (1)VCC: 7V; (2)BST: 13.2V; (3)BST-SWN: 7V; (4)All other pins: -0.3V to VCC + 0.3V; (5)Peak Output Current < 10μs, GH,GL: 2A; (6)Storage Temperature: -65℃ to 150℃; (7)Power Dissipation, Lead Temperature (Soldering, 10 sec): 300℃; (8)ESD Rating: 2kV HBM.

Features

SP6123CN features: (1)Optimized for Single Supply, 3V - 5.5V Applications; (2)High Efficiency: Greater Than 95% Possible; (3)Accurate Fixed 300kHz (SP6123) or 500kHz (SP6123A) Frequency Operation; (4)Fast Transient Response; (5)Internal Soft Start Circuit; (6)Accurate 0.8V Reference Allows Low Output Voltages; (7)Resistor Programmable Output Voltage; (8)Loss-less Current Limit with High Side RDS(ON) Sensing; (9)Hiccup Mode Current Limit Protection; (10)Dual N-Channel MOSFET Synchronous Driver; (11)Quiescent Current: 500μA, 30μA in Shutdown; (12)8-Pin Surface Mount Package.

Diagrams

SP6123CN BLOCK DIAGRAM

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SP6123CN-L
SP6123CN-L
Exar
Voltage Mode PWM Controllers Low Voltage, Micro 8 Synchronous, Cntrllr
Data Sheet
0-1: $1.15
1-25: $0.87
25-100: $0.74
100-250: $0.62
SP6123CN-L/TR
SP6123CN-L/TR
Exar
Voltage Mode PWM Controllers Low Voltage, Micro 8 Synchronous, Cntrllr
Data Sheet
0-1820: $0.45
1820-2500: $0.42