Parts List - Linear Technology DC193 Demo Manual

PARTS LIST

REFERENCE
DESIGNATOR
C1
C2
C3
C4
C5
C
IN
C
OUT
D1
R1
R2
R3, R4
R5
R
SENSE
L1
U1
QUICK START GUIDE
The DC193 demonstration board is easy to set up to
evaluate the performance of the LTC1626. Please follow
the procedure outlined below for proper operation.
• Select the output voltage by moving jumper J1 to
either the J1A (2.5V) or J1B (3.3V) position. If a
different output voltage is desired, move J1 to the J1C
position and add optional V
V should not be programmed above 5V unless
OUT
C is changed from a 6.3V to a 10V rating . The value
OUT
of R6 is calculated as follows:
R6 = 10k/[(V
• Connect the input power supply to the V
terminals. V
IN
• The LB pin is a current sinking pin. When the LB
OUT
pin drops below 1.25V, the LB
of current.
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QUANTITY PART NUMBER
1 AVX 06035C392KAT
1 AVX 06035A271KAT
1 AVX 0603YC104KAT
1 AVX 0603C102KAT
1 AVX 0603A101KAT
1 TPSC476M010R0350
1 TPSC107M006R0150
1 MBR0520LT1
1 TAD CR16-223JM
1 TAD CR16-102JM
2 TAD CR16-1002JM
1 TAD CR16-6041JM
1 LR120601R100J
1 CD54-220
1 LTC1626CS
adjust resistor, R6.
OUT
/1.25) –1)]
OUT
should be limited to 6V.
pin will sink 400µA
OUT
DESCRIPTION
3900pF 50V X7R Chip Capacitor
270pF 50V NPO Chip Capacitor
0.1µF 16V X7R Chip Capacitor
1000pF 50V X7R Chip Capacitor
100pF 50V NPO Chip Capacitor
47µF 10V Tantalum Capacitor
100µF 6.3V Tantalum Capacitor
0.5A 20V Schottky Rectifier Diode
22k 1/16W 5% Chip Resistor
1k 1/16W 5% Chip Resistor
10k 1/16W 1% Chip Resistor
6.04k 1/16W 1% Chip Resistor
0.1W 1/4W 5% Chip Resistor
22µH Inductor
IC
• The LB
IN
Normally, its input comes from the input voltage,
through a resistive divider network (see Figure 3).
• Connect the load between the V
nals. The load current should not exceed 600mA.
• Refer to Figure 4 for proper arrangement of measure-
ment equipment setup.
• The SHDN pin is pulled down to ground by R1. To put
the LTC1626 in shutdown, connect the SHDN
pin directly to V
dominated by the current flowing through pull-down
and GND resistor, R1; that is, the current measured at V
IN
be V /22k. To measure the shutdown current of the
IN
LTC1626, remove R1 and switch the SHDN pin to
IN
either GND or V
DEMO MANUAL DC193
NO DESIGN SWITCHER
VENDOR
AVX
AVX
AVX
AVX
AVX
AVX
AVX
Motorola
TAD
TAD
TAD
TAD
IRC
Sumida
LTC
pin is the low-battery detector input pin.
OUT
. (The shutdown current will be
IN
.)
IN
TELEPHONE
(803) 946-0362
(803) 946-0362
(803) 946-0362
(803) 946-0362
(803) 946-0362
(207) 282-5111
(207) 282-5111
(602) 244-3576
(800) 508-1521
(800) 508-1521
(800) 508-1521
(800) 508-1521
(512) 992-7900
(847) 956-0666
(408) 432-1900
and GND termi-
will
IN
3