MAX8570EUT+T Maxim Integrated Products, MAX8570EUT+T Datasheet - Page 5

• Manufacturer Part Number: MAX8570EUT+T
• Description: IC CONV LCD BOOST SOT23-6
• Manufacturer: Maxim Integrated Products

Specifications of MAX8570EUT+T

• Applications: Converter, LCD
• Voltage - Input: 2.7 ~ 5.5 V
• Number Of Outputs: 1
• Voltage - Output: 2.7 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Power Dissipation: 695.7 mW
• Maximum Operating Temperature: + 85 C
• Maximum Supply Current: 35 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(MAX8571, V
MAX8570
(µDFN)
—
3
2
1
6
5
4
MAX8570/
MAX8571/
CC
MAX8574
(SOT23)
V
I
OUT
OUT
= 3.6V, V
PIN
—
1
2
3
4
5
6
_______________________________________________________________________________________
MAX8572/
MAX8573/
OUT
MAX8575
(SOT23)
LOAD TRANSIENT
—
1
2
3
4
5
6
= 18V, Circuit of Figure 2, T
100µs/div
NAME
MAX8570/71/73/74/75 toc15
SHDN
GND
OUT
V
SW
FB
LX
CC
Typical Operating Characteristics (continued)
Feedback for Setting the Output Voltage. Connect FB to the center of a resistor
voltage-divider from the output to GND to set positive output voltages.
Output. The output voltage is preset to 15V. Connect a 1µF ceramic capacitor
from OUT to GND. In shutdown, OUT is pulled to GND by an internal 7.5MΩ
resistor.
Ground
Shutdown Input. A logic-low at SHDN places the part in low-power shutdown
mode. Pull SHDN high or connect to V
Inductor Switching Connection
Isolation Switch Output. Internally connected to the drain of a p-channel
MOSFET used to isolate the output from the input during shutdown. Connect a
4.7µF ceramic capacitor from SW to GND. If True Shutdown is not required, SW
can be left open with the input supply connected directly to the inductor.
Input Voltage Supply. Connect a 2.7V to 5.5V input supply to V
1µF ceramic capacitor from V
100mV/div
(AC-COUPLED)
5mA/div
0
A
= +25°C, unless otherwise noted.)
High-Efficiency LCD Boost
V
SHDN
V
OUT
I
LX
with True Shutdown
STARTUP AND SHUTDOWN WAVEFORMS
1.8Ω LOAD
SW TURN-ON
CC
BOOST SOFT-START
to GND.
FUNCTION
CC
400µs/div
for normal operation.
MAX8570/71/73/74/75 toc16
Pin Description
5V/div
10V/div
0
200mA/div
0
CC
. Connect a
5