19-1302; Rev 1; 3/98
Lo w -No is e , Lo w -Dro p o u t ,
1 5 0 m A Lin e a r Re g u la t o rs in S OT2 3
7/MAX68
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX8867/MAX8868 low-noise, low-dropout linear
regulators operate from a 2.5V to 6.5V input and deliver
up to 150mA. Typical output noise for these devices is
♦ Low Output Noise: 30µV
RMS
♦ Low 55mV Dropout at 50mA Output
(165mV at 150mA output)
just 30µV
, and typical dropout is only 165mV at
RMS
150mA. The output voltage is preset to voltages in the
ra ng e of 2.5V to 5.0V, in 100mV inc re me nts . The
MAX8867 and MAX8868 are pin-compatible with the
MAX8863 and MAX8864, except for the BP pin.
♦ Low 85µA No-Load Supply Current
♦ Low 100µA Operating Supply Current
(even in dropout)
Designed with an internal P-channel MOSFET pass
tra ns is tor, the MAX8867/MAX8868 ma inta in a low
100µA supply current, independent of the load current
and dropout voltage. Other features include a 10nA
logic-controlled shutdown mode, short-circuit and ther-
mal-shutdown protection, and reverse battery protec-
tion. The MAX8868 also includes an auto-discharge
function, which actively discharges the output voltage
to ground when the device is placed in shutdown. Both
devices come in a miniature 5-pin SOT23 package.
♦ Thermal-Overload and Short-Circuit Protection
♦ Reverse Battery Protection
♦ Output Current Limit
♦ Preset Output Voltages (±1.4% accuracy)
♦ 10nA Logic-Controlled Shutdown
______________Ord e rin g In fo rm a t io n
________________________Ap p lic a t io n s
PART**
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
Dice*
Cellular Telephones
Cordless Telephones
PCS Telephones
PCMCIA Cards
Modems
MAX8867C/Dxy
MAX8867EUKxy-T
MAX8868C/Dxy
MAX8868EUKxy-T
Hand-Held Instruments
Palmtop Computers
Electronic Planners
5 SOT23-5
Dice*
5 SOT23-5
*Dice are tested at T = +25°C.
**xy is the output voltage code (see Expanded Ordering
Information table).
A
__________________P in Co n fig u ra t io n
TOP VIEW
SHDN
GND
IN
1
2
3
5
4
BP
___Ex p a n d e d Ord e rin g In fo rm a t io n
MAX8867
MAX8868
PRESET
SOT TOP MARK
MAX8867 MAX8868
ACAY ACBF
OUTPUT
VOLTAGE (xy)
CODE
OUTPUT
VOLTAGE
(V)
OUT
MAX886_EUK25
MAX886_EUK28
MAX886_EUK29
MAX886_EUK30
MAX886_EUK32
MAX886_EUK33
MAX886_EUK36
MAX886_EUK50
Other xy***
2.50
2.80
2.84
3.00
3.15
3.30
3.60
5.00
x.y0
SOT23-5
ACAZ
ACBA
ACBB
ACBC
ACBD
ACCZ
ACBE
—
ACBG
ACBH
ACBI
ACBJ
ACBK
ACDA
ACBL
—
__________Typ ic a l Op e ra t in g Circ u it
INPUT
2.5V TO 6.5V
OUTPUT
PRESET
2.5V TO 5.0V
150mA
IN
OUT
C
IN
C
OUT
1µF
1µF
MAX8867
MAX8868
SHDN
OFF
ON
BP
***Other xy between 2.5V and 5.0V are available in 100mV incre-
ments. Contact factory for other versions. Minimum order
quantity is 25,000 units.
C
GND
BP
0.01µF
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.