Part Datasheet Search > Voltage Regulators > Maxim Integrated > MAX8877EUK33+T Datasheet PDF > MAX8877EUK33+T Datasheet Pages 8/10
MAX8877EUK33+T Datasheet - Maxim Integrated
| Manufacturer: | Maxim Integrated |
| Category: | Voltage Regulators |
| Case Package: | SOT-23-5 |
| Description: | MAXIM INTEGRATED PRODUCTS MAX8877EUK33+T Fixed LDO Voltage Regulator, 2.5V to 6.5V In, 165mV Dropout, 3.3V/150mA Out, SOT-23-5 |
| Pictures: |
MAX8877EUK33+TDatasheet PDF
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MAX8877/MAX8878
Low-Noise, Low-Dropout, 150mA Linear
Regulators with '2982 Pinout
8 _______________________________________________________________________________________
Stable C
OUT
ESR vs. Load Current is shown in the
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
graphs in the Typical Operating Characteristics).
PSRR and Operation from
Sources Other than Batteries
The MAX8877/MAX8878 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 fil-
tering techniques. The Typical Operating Charac-
teristics show the MAX8877/MAX8878’s line- and load-
transient responses.
Load-Transient Considerations
The MAX8877/MAX8878 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. 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.
Input-Output (Dropout) Voltage
For output voltage greater than the minimum input volt-
age (2.5V), the regulator’s minimum input-output volt-
age differential (or dropout voltage) determines the
lowest usable supply voltage. In battery-powered sys-
tems, this will determine the useful end-of-life battery
voltage. Because the MAX8877/MAX8878 use a P-
channel MOSFET pass transistor, their dropout voltage
is a function of drain-to-source on-resistance (R
DS(ON)
)
multiplied by the load current (see Typical Operating
Characteristics).
_ Expanded Ordering Information
___________________Chip Information
***Other xy between 1.5V and 5.0V are available in 100mV increments. Contact factory for other versions. Minimum order quantity is 25,000 units.
TRANSISTOR COUNT: 247
SUBSTRATE CONNECTED TO GND
OUTPUT VOLTAGE (xy) CODE SOT TOP MARK
REGULAR SOT23 THIN SOT23
PRESET
OUTPUT
VOLTAGE (V)
MAX8877
REGULAR
MAX8877
THIN
MAX8878
REGULAR
MAX8878
THIN
MAX887_EUK15-T MAX887_EZK15-T 1.50 ADRG AAAA ADQV AAAJ
MAX887_EUK18-T MAX887_EZK18-T 1.80 ADQT AAAB ADRH AAAK
MAX887_EUK25-T MAX887_EZK25-T 2.50 ACBM AAAC ACBT AAAL
MAX887_EUK28-T MAX887_EZK28-T 2.80 ACBN AAAD ACBU AAAM
MAX887_EUK29-T MAX887_EZK29-T 2.84 ACBO ADPM ACBV ADPO
MAX887_EUK30-T MAX887_EZK30-T 3.00 ACBP AAAE ACBW AAAN
MAX887_EUK32-T MAX887_EZK32-T 3.15 ACBQ AAAF ACBX AAAO
MAX887_EUK33-T MAX887_EZK33-T 3.30 ACBR AAAG ACBY AAAP
MAX887_EUK36-T MAX887_EZK36-T 3.60 ACDB AAAH ACDC AAAQ
MAX887_EUK50-T MAX887_EZK50-T 5.00 ACBS AAAI ACBZ AAAR
Other xy*** x.y0 ————
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