L6928 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6928' PDF : 16 Pages View PDF
L6928
High efficiency monolithic synchronous step-down regulator
Datasheet - production data
Applications
TSSOP8
Features
VFQFPN8
(3x3x1.0 mm)
Battery-powered equipment
Portable instruments
Cellular phones
PDAs and handheld terminals
DSC
GPS
2 V to 5.5 V battery input range
High efficiency: up to 95%
Internal synchronous switch
No external Schottky diode required
Extremely low quiescent current
1 µA max. shutdown supply current
800 mA max. output current
Adjustable output voltage from 0.6 V
Low-dropout operation: up to 100% duty
cycle
Selectable low noise/low consumption mode
at light load
Power Good signal
± 1% output voltage accuracy
Current mode control
1.4 MHz switching frequency
Externally synchronized from 1 MHz to 2
MHz
OVP
Short-circuit protection
Description
The device is a DC-DC monolithic regulator
specifically designed to provide high efficiency.
The L6928 supply voltage can be as low as 2 V
to be used in single Li-Ion cell supplied
applications. Output voltage can be selected by
an external divider down to 0.6 V. Duty cycle can
saturate 100% allowing low-dropout operation.
The device is based on a 1.4 MHz fixed
frequency, current mode architecture. Low
consumption mode operation can be selected at
light load conditions, allowing switching losses to
be reduced. The L6928 is externally
synchronized by a clock, which makes it useful in
noise sensitive applications. Other features like
Power Good, overvoltage protection, short-circuit
protection and thermal shutdown (150 °C) are
also present.
Table 1: Device summary
Order code
Package
Packing
L6928D
TSSOP8
Tube
L6928D013TR
TSSOP8
Tape and reel
L6928Q1
VFQFPN8
Tube
L6928Q1TR
VFQFPN8
Tape and reel
October 2016
DocID11051 Rev 9
This is information on a product in full production.
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