TS3300DB Datasheet, PDF (1/4 Pages) Touchstone Semiconductor Inc – A 0.6-4.5VIN, 1.8-5.25VOUT, 3.5A, Low Input Voltage, High-Efficiency Boost + LDO

TS3300 Demo Board
A 0.6-4.5VIN, 1.8-5.25VOUT, 3.5µA, Low Input Voltage, High-Efficiency Boost + LDO
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-Crush^TM
Voltage Setting
 LDO
 Output Voltage: 1.8V
 Shutdown Control Jumper
 Switch/FET Enable Jumper
COMPONENT LIST
DESIGNATION
L1
QTY
1
C1, C4
2
C2, C3, C7
3
C5
1
R1, R6
2
R3, R4
2
R5
1
U1
1
BOOST,BOOST_OUT, 5
REG_OUT, GND (2)
J1, J2, J3
3
DESCRIPTION
10µH ±20% Shielded Inductor
(4mmx4mm), LPS4018-103ML
22µF ±10% capacitor (1206),
445-8035-6-ND
3.3nF ±10% capacitor (0603),
445-5084-2-ND
10µF ±10% capacitor (0805),
445-1371-2-ND
1.37MΩ ± 1% (0805),
311-1.37MCRTR-ND
6.81MΩ ± 1% (0805),
311-6.81MCRTR-ND
2.61MΩ ± 1% (0805),
541-2.61MCTR-ND
TS3300
Test points
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 management
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-crush^TM 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-crush^TM voltage.
The TS3300 boost regulator 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
Order Number
TS3300DB
Description
TS3300
Demo Board
Figure 1. TS3300 Demo Board (Top View)
Figure 2. TS3300 Demo Board (Bottom View)
Page 1
© 2013 Touchstone Semiconductor, Inc. All rights reserved.