max8867euk50t Maxim Integrated Products, Inc., max8867euk50t Datasheet - Page 8

• Manufacturer Part Number: max8867euk50t
• Description: Low-noise, Low-dropout, 150ma Linear Regulators In Sot23
• Manufacturer: Maxim Integrated Products, Inc.

Z5U and Y5V, it may be necessary to use 2.2µF or
more to ensure stability at temperatures below -10°C.
With X7R or X5R dielectrics, 1µF should be sufficient at
all operating temperatures. Also, for high-ESR tantalum
capacitors, 2.2µF or more may be needed to maintain
ESR in the stable region. A graph of the Region of
Stable C
Typical Operating Characteristics.
Use a 0.01µF bypass capacitor at BP for low output volt-
age noise. Increasing the capacitance will slightly
decrease the output noise, but increase the start-up time.
Values above 0.1µF provide no performance advantage
and are not recommended (see Shutdown Exit Delay
graph in the Typical Operating Characteristics).
The MAX8867/MAX8868 are designed to deliver low
dropout voltages and low quiescent currents in battery-
powered systems. Power-supply rejection is 63dB at
low frequencies and rolls off above 10kHz. See the
Power-Supply Rejection Ratio Frequency graph in the
Typical Operating Characteristics.
When operating from sources other than batteries,
improved supply-noise rejection and transient response
can be achieved by increasing the values of the input
and output bypass capacitors, and through passive filter-
ing techniques. The Typical Operating Characteristics
_
***Other xy between 2.5V and 5.0V are available in 100mV increments. Contact factory for other versions. Minimum order quantity is 25,000 units.
Low-Noise, Low-Dropout,
150mA Linear Regulators in SOT23
8
REGULAR SOT23
MAX886_EUK25-T
MAX886_EUK28-T
MAX886_EUK29-T
MAX886_EUK30-T
MAX886_EUK32-T
MAX886_EUK33-T
MAX886_EUK36-T
MAX886_EUK50-T
_______________________________________________________________________________________
OUTPUT VOLTAGE (xy) CODE
OUT
ESR vs. Load Current is shown in the
Other xy***
Sources Other than Batteries
PSRR and Operation from
MAX886_EZK25-T
MAX886_EZK28-T
MAX886_EZK29-T
MAX886_EZK30-T
MAX886_EZK32-T
MAX886_EZK33-T
MAX886_EZK36-T
MAX886_EZK50-T
THIN SOT23
VOLTAGE (V)
OUTPUT
PRESET
2.50
2.80
2.84
3.00
3.15
3.30
3.60
5.00
x.y0
show the MAX8867/MAX8868’s line- and load-transient
responses.
The MAX8867/MAX8868 load-transient response
graphs (see Typical Operating Characteristics) show
two components of the output response: a DC shift from
the output impedance due to the load current change,
and the transient response. A typical transient for a
step change in the load current from 0mA to 50mA is
12mV. Increasing the output capacitor’s value and
decreasing the ESR attenuates the overshoot.
A regulator’s minimum input-output voltage differential
(or dropout voltage) determines the lowest usable sup-
ply voltage. In battery-powered systems, this will deter-
mine the useful end-of-life battery voltage. Because the
MAX8867/MAX8868 use a P-channel MOSFET pass
transistor, their dropout voltage is a function of drain-to-
source on-resistance (R
current (see Typical Operating Characteristics).
TRANSISTOR COUNT: 247
SUBSTRATE CONNECTED TO GND
REGULAR
Expanded Ordering Information
MAX8867
ACBC
ACBD
ACAY
ACAZ
ACBA
ACBB
ACCZ
ACBE
—
Input-Output (Dropout) Voltage
Load-Transient Considerations
MAX8867
ADQM
ADQO
ADQQ
ADQP
ADQR
ADQS
ADQT
ADQV
THIN
—
SOT TOP MARK
DS(ON)
Chip Information
REGULAR
) multiplied by the load
MAX8868
ACBG
ACBH
ACDA
ACBF
ACBK
ACBL
ACBJ
ACBI
—
MAX8868
THIN
ADQW
ADQX
ADQY
ADQZ
ADRC
ADRD
ADRA
ADRB
—