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TK11811

TOKO
Part Number TK11811
Manufacturer TOKO
Description DC-DC CONVERTER
Published Apr 16, 2005
Detailed Description TK11811 DC-DC CONVERTER FEATURES s s s s s Miniature Package (SOT-23L) Low Start-up Voltage [0.6 V (typ.)] Few External ...
Datasheet PDF File TK11811 PDF File

TK11811
TK11811

Overview
TK11811 DC-DC CONVERTER FEATURES s s s s s Miniature Package (SOT-23L) Low Start-up Voltage [0.
6 V (typ.
)] Few External Components Selectable Output Voltage (1.
9 V or 2.
8 V) High and Low Current Optimized Designs APPLICATIONS s s s s s s s s Pagers Cassette Recorders Cordless Telephones Portable Instrumentation Radio Control Systems Mobile Radios Battery Operated Equipment Local Area Network (LAN) Receivers DESCRIPTION The TK11811 is a low power, low input voltage DC-DC converter.
This device can be optimized for use in high or low current applications through component selection.
The output voltage is selectable for 1.
9 or 2.
8 V operation and can be trimmed to any voltage in between.
20 P TK11811 VIN FB OSC T GND The frequency of the built-in relaxation oscillator is set by external components.
The internal voltage regulator provides a stable output voltage.
Optimized Toko inductor components are available.
The TK11811 is available in a miniature SOT-23L surface mount package.
VOUT BLOCK DIAGRAM VIN FB OSC VOUT ORDERING INFORMATION TK11811M Tape/Reel Code OSCILLATOR Vref T + TAPE/REEL CODE TL: Tape Left GND January 1999 TOKO, Inc.
Page 1 TK11811 ABSOLUTE MAXIMUM RATINGS Input Voltage 16 V Power Dissipation (Note 1) .
.
200 mW Junction Temperature .
.
.
150 °C Storage Temperature Range .
.
.
.
-55 to +150 °C Operating Temperature Range .
.
.
.
-10 to +65 °C Lead Soldering Temperature (10 s) .
.
235 °C TK11811 ELECTRICAL CHARACTERISTICS Test Conditions: TA = 25 °C, VOUT = 2.
9 V (VOUT to T open), unless otherwise specified.
SYMBOL VIN VSTART IIN PARAMETER Supply Voltage Range Start-up Voltage Input Current IOUT = 0 mA VIN = 1.
1 V, IOUT = 3 mA VIN = 1.
4 V, IOUT = 3 mA Output Voltage VIN = 1.
1 V, IOUT = 3 mA VIN = 1.
4 V, IOUT = 3 mA Output Voltage (LOW) VIN = 1.
1 V, IOUT = 3 mA, T to V...


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