MAX8569EVKIT+ Maxim Integrated Products, MAX8569EVKIT+ Datasheet - Page 6

• Manufacturer Part Number: MAX8569EVKIT+
• Description: EVALUATION KIT FOR MAX8569
• Manufacturer: Maxim Integrated Products

Specifications of MAX8569EVKIT+

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Current - Output: 200mA
• Voltage - Input: 1.5 ~ 5.5V
• Regulator Topology: Boost
• Board Type: Fully Populated
• Utilized Ic / Part: MAX8569
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

200mA Step-Up Converters in 6-Pin
SOT23 and TDFN
(Circuit of Figure 2, V
6
MAX8569A
_______________________________________________________________________________________
—
—
1
2
3
4
5
6
V
SHDN
V
OUT
PIN
MAX8569B
—
—
SHUTDOWN RESPONSE
OUT
1
2
3
4
5
6
(R
= 3.3V, V
LOAD
100µs/div
= 33Ω)
NAME
SHDN
BATT
GND
OUT
RST
FB
EP
LX
BATT
= +2V, T
MAX8569 toc13
Shutdown Input. Drive SHDN low to place the MAX8569 in shutdown mode. SHDN can be
used for a low-battery cutoff (1.228V threshold). See the Low-Battery Cutoff section for
details. Drive SHDN high for normal operation.
Battery Voltage Connection. Connect BATT to a 1.5V to 5.5V supply. Bypass BATT to GND
with a 10µF or larger ceramic capacitor.
Ground
Inductor Connection. Connect the switched side of the inductor to LX. During shutdown,
LX is connected to OUT.
Output Voltage. Bypass OUT to GND with a 10µF or larger ceramic capacitor. During
shutdown, OUT is connected to LX. OUT is also the bootstrapped supply input for the IC.
Feedback Input. Connect FB to the center tap of an external resistor-divider from OUT to
GND to set the output voltage. V
Reset Output. RST is an open-drain output that goes high impedance when the output
voltage rises above 90% of the nominal regulation voltage. RST pulls low when the output
is below 90% of the nominal regulation voltage. RST is high impedance during shutdown.
Exposed Paddle (TDFN Package Only). Connect to the PC board ground plane for
increased thermal performance.
A
3.3V
2V
2V/div
Typical Operating Characteristics (continued)
= +25°C, circuit of Figure 1, T
FB
(AC-COUPLED)
regulates to 1.228V.
A
V
OUT
V
FUNCTION
= +25°C, unless otherwise noted.)
LX
I
L
SWITCHING WAVEFORMS
(R
LOAD
10µs/div
= 33Ω)
Pin Description
MAX8569 toc14
100mV/div
2V/div
500mA/div