TS3300DB TOUCHSTONE | Alldatasheet

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Technical content

© 2013 Touchstone Semiconductor, Inc. All rights reserved.

FEATURES

 Boost Regulator  Input Voltage: 0.6V- 4.5V  Output Voltage: 3V  Shutdown Control Jumper  Coilcraft 10µH Inductor (LPS4018-103ML)  Resistor Pad Available for Anti-CrushTM Voltage Setting  LDO  Output Voltage: 1.8V  Shutdown Control Jumper  Switch/FET Enable Jumper COMPONENT LIST DESIGNATION QTY DESCRIPTION L1 1 10µH ±20% Shielded Inductor (4mmx4mm), LPS4018-103ML C1, C4 2 22µF ±10% capacitor (1206), 445-8035-6-ND C2, C3, C7 3 3.3nF ±10% capacitor (0603), 445-5084-2-ND C5 1 10µF ±10% capacitor (0805), 445-1371-2-ND R1, R6 2 1.37MΩ ± 1% (0805), 311-1.37MCRTR-ND R3, R4 2 6.81MΩ ± 1% (0805), 311-6.81MCRTR-ND R5 1 2.61MΩ ± 1% (0805), 541-2.61MCTR-ND U1 1 TS3300 BOOST,BOOST_OUT, REG_OUT, GND (2)

5 Test points

J1, J2, J3 3 Jumper

DESCRIPTION

The demo board for the TS3300 is a completely assembled and tested circuit board that can be used for evaluating the TS3300. The TS3300 is a first generation Touchstone Semi power man agement product that combines a high-efficiency boost regulator and a low dropout linear regulator (LDO) in one package. The TS3300 LDO’s input is connected to the output of the boost regulator, serving as a post - regulator for the boost. The TS3300 includes an anti-crushTM feature to prevent the collapse of the input voltage to the boost regulator when the input is a weak (high impedance) source. If the input voltage drops below a pre- determined voltage threshold (settable by a resistor divider), the boost regulator switching cycles are paused, effectively limiting the minimum input voltage. A pull-down resistor pad is available in order to set the anti-crushTM voltage. The TS3300 boost regulat or is set to an output voltage of 3V while the LDO is set to an output voltage of 1.8V via a resistor divider circuit. The boost regulator and the LDO can be shutdown separately via a jumper. The LDO switch/FET can be fully enhanced via a jumper. The TS3300 is fully specified over the -40°C to +85°C temperature range and is available in a low -profile, thermally -enhanced 16 -pin 3x3mm TQFN package with an exposed back -side paddle. Product datasheet and additional documentation can be found on the factory web site at www.touchstonesemi.com.

ORDERING INFORMATION

Figure 1. TS3300 Demo Board (Top View) Figure 2. TS3300 Demo Board (Bottom View)

630 Alder Drive, Milpitas, CA 95035 RTFDS

Figure 7. Top Layer View #1 Figure 8. Top Layer View #2 Figure 9. Bottom Layer (GND) #1 Figure 10. Bottom Layer (GND) #2