SS8051T11TB SSC [Silicon Standard Corp.], SS8051T11TB Datasheet

no-image

SS8051T11TB

Manufacturer Part Number
SS8051T11TB
Description
Micro-Power Step-up DC/DC Converter
Manufacturer
SSC [Silicon Standard Corp.]
Datasheet
Rev.2.01 6/06/2003
FEATURES
APPLICATIONS
TYPICAL APPLICATION CIRCUIT
Configurable output voltage up to 28V
Quiescent current of 20µA
Shutdown current <1µA
Shutdown-pin current <1µA
Supply range from 2.5V to 6.5V
Low V
Tiny SOT23-5 package
STN/TFT LCD Bias
Personal Digital Assistants (PDAs)
Handheld Computers
Digital Still Cameras
Cellular Phones
WebPad
White LED Driver
Local 3V to 5V Conversion
DS(on)
: 250mV (I
2.5V – 4.2V
SW
=300mA)
www.SiliconStandard.com
4.7 µ F
4.7 µ F
Micro-Power Step-up DC/DC Converter
VCC
SHDN
SS8051
GND
GND
10uH
SW
FB
The SS8051 boost converter is designed for small to
DESCRIPTION
medium size LCD panels requiring high bias voltages.
With a typical quiescent current of 20µA and a supply
voltage range of 2.5V to 6.5V, it is suitable for battery
powered portable applications, such as PDAs and
handheld computers. When the SS8051 goes into
shutdown mode, it consumes less than 1µA.
Furthermore, with a 350mA current limit, 500ns fixed
minimum off-time and tiny SOT23-5 package, the
SS8051 can be used with smaller inductors and other
surface-mount components to minimize the required PCB
footprint in space-conscious applications.
To control the SS8051, no other external current is
needed for the shutdown pin, which typically consumes
less than 1µA over the full supply range.
1M
62k
1 µ F
1 µ F
20V
12mA
SS8051
1 of 9

Related parts for SS8051T11TB

SS8051T11TB Summary of contents

Page 1

FEATURES Configurable output voltage up to 28V Quiescent current of 20µA Shutdown current <1µA Shutdown-pin current <1µA Supply range from 2.5V to 6.5V Low V : 250mV (I =300mA) DS(on) SW Tiny SOT23-5 package APPLICATIONS STN/TFT LCD Bias Personal Digital ...

Page 2

ORDERING INFORMATION SS8051TXXXX Packing type TR: Tape and reel TB: Tube Pinout type T11 T12 Example: SS8051T12TR T12 pin configuration shipped in tape and reel packing PIN DESCRIPTION NAME SW Switch Pin. The drain of the internal NMOS power switch. ...

Page 3

ELECTRICAL CHARACTERISTICS ( V = 3.6V 3.6V SHDN PARAMETER Input Voltage Range Quiescent Current FB Comparator Trip Point Output Voltage Line Regulation FB Pin Bias Current (Note 2) Switch Off Time Switch V DS(ON) Switch Current ...

Page 4

TYPICAL PERFORMANCE CHARACTERISTICS (V =+3.6V, V =+3.6V, L=10µH, TA=25°C, unless otherwise noted.) SHDN CC Output Voltage vs. Input Voltage 21 20.5 I OUT 20 I =10mA OUT 19.5 19 2.5 3 3.5 4 4.5 Input Voltage (V) Efficiency vs. Load ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS (cont.) FB Bias Current vs. Temperature 30 V =2. - Temperature (C ) Line Transient Rev.2.01 6/06/2003 V =4. 100 www.SiliconStandard.com SS8051 Switch Current ...

Page 6

BLOCK DIAGRAM ...

Page 7

Here 0.4V (Schottky diode voltage and t = 500ns. A larger value can be used to slightly OFF increase the available output current, but limit it to about twice the calculated value. When too large an ...

Page 8

If a larger inductance value or a smaller capacitance value is used, the output ripple voltage will increase because the ...

Page 9

PACKAGE DIMENSIONS SOT-23-5 (unit: mm Package body sizes exclude mold flash protrusions or gate burrs 2. Tolerance ±0.1000 mm (4mil) unless ...

Related keywords