MAX1802EVKIT View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX1802EVKIT Datasheet PDF : 7 Pages
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MAX1802 Evaluation Kit for
Digital Still Cameras
DESIGNATION QTY
DESCRIPTION
D7, D8
Schottky diodes (SOD123)
2 Motorola MBR0520L or
Fairchild Semiconductor MBR0520L
D9
JU1–JU6
1 Schottky diode (S-FLAT)
Toshiba CRS05 (not installed)
6 3-pin headers
JU7–JU12
6 2-pin headers
L1
1
4.7µH inductor
Sumida CR43-4R7
L2, L4
2 10µH inductors
Sumida CDRH6D28-100
L3
1
3.3µH inductor
Sumida CR43-3R3
Q1, Q2, Q3, Q5
4 N-channel MOSFETs (SuperSOT-3)
Fairchild Semiconductor FDN337N
Q4
1
P-channel MOSFET (SO-8)
Vishay/Siliconix SI9803DY
Q6
1
N-channel MOSFET (SuperSOT-3)
Fairchild Semiconductor FDN359AN
R1
1 40.2kΩ ±1% resistor (0603)
R2
1 866kΩ ±1% resistor (0603)
R3, R19, R20,
R22, R24, R28
6 100kΩ ±1% resistors (0603)
R4, R13, R14,
R15
4 10kΩ ±5% resistors (0402)
R5, R6, R26,
R27, R30, R31
6 Open (0402), not installed
R7
1
Short (0603), not installed,
shorted in the PC board layout
R8–R12
5 Open (0603), not installed
R16
1 33kΩ ±5% resistor (0603)
R17
1 91kΩ ±5% resistor (0603)
R18
1 464kΩ ±1% resistor (0603)
R21
1 44.2kΩ ±1% resistor (0603)
R23
1 165kΩ ±1% resistor (0603)
R25, R29
2 301kΩ ±1% resistors (0603)
R32, R33, R37,
R38, R41, R42
6 3kΩ ±5% resistors (1206)
R34, R35, R39, R40 4 200Ω ±5% resistors (1206)
R36
1 750Ω ±5% resistor (1206)
Component List (continued)
DESIGNATION
T1
T2
U1
U2
None
QTY
DESCRIPTION
Sumida transformer
1 CLQ72-type package
Sample number: 6333-T334
Sumida transformer
1 CLQ72-type package
Sample number: 6333-T333
1 MAX1802EHJ (32-pin TQFP)
1 MAX1801EKA (8-pin SOT23)
12 Shunts
Recommended Equipment
• +3.3V to +11V battery or power supply
• Digital voltmeter (DVM)
Quick Start
1) Make sure jumpers JU1–JU6 are connected in the
ON position. This ensures all converters will turn on
at power-up.
2) Before loading any output, check the output voltage
and output current capability shown in Table 1.
3) Make sure jumpers JU7–JU12 are connected if no
external loads are attached to the OUT1A, OUT1B,
OUT1C, OUT2A, OUT2B, and OUT2C outputs.
4) Attach a +3.3V to +7V battery or power supply to
IN.
5) Using the DVM, measure the voltage at MAIN,
CORE, OUT1_, OUT2_, OUT3, and OUT4.
Detailed Description
MAIN Output
The main output (MAIN) powers the core supply of the
MAX1802. MAIN must be regulated before any of the
other outputs function.
To enable MAIN, place jumper JU4 to the ON position.
Apply +3.3V to +11V between IN and GND. The voltage
between MAIN and GND should be approximately +3.3V.
If IN is less than +3.3V, MAIN will not be regulated.
CORE Output
The core output (CORE) is powered from MAIN and reg-
ulated at +1.8V using a synchronous-rectified step-down
converter. Drawing more than 200mA out of CORE
reduces the current capability at MAIN.
To enable CORE, place jumper JU5 to the ON position.
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