MAX861IUA Maxim Integrated Products, MAX861IUA Datasheet - Page 3

• Manufacturer Part Number: MAX861IUA
• Description: DC/DC Switching Converters 50mA f-Selectable Switched-Cap V Conv
• Manufacturer: Maxim Integrated Products

Specifications of MAX861IUA

• Output Voltage: - 1.5 V to - 5.5 V, 5 V to 11 V
• Output Current: 100 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: uMAX-8
• Minimum Operating Temperature: - 25 C

ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit (Inverter), V
otherwise noted. Typical values are at T
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Switching Frequency
(Note 5)
FC Current (from V
Power Efficiency (Note 6)
Voltage-Conversion Efficiency
–
S
Shutdown Supply Current
Time to Exit Shutdown
—
H
—
D
—
N
–
Threshold
PARAMETER
C1 and C2 are low-ESR (<0.2 ) aluminum electrolytics. Capacitor ESR adds to the circuit’s output resistance. Using
capacitors with higher ESR may reduce output voltage and efficiency.
MAX860/MAX861 may draw high supply current during startup, up to the minimum operating supply voltage. To guaran-
tee proper startup, the input supply must be capable of delivering 90mA more than the maximum load current.
Specified output resistance includes the effect of the 0.2 ESR of the test circuit’s capacitors.
The switches are driven directly at the oscillator frequency, without any division.
At lowest frequencies, using 10µF capacitors gives worse efficiency figures than using the recommended capacitor
values in Table 3, due to larger 1 ⁄ (f
DD
_______________________________________________________________________________________
Switched-Capacitor Voltage Converters
)
SYMBOL
DD
I
V
V
f
FC
A
S
IH
IL
= +5V,
= +25°C.)
s
MAX860
MAX861
FC < 4V
MAX860,
FC = V
MAX861,
FC = V
MAX860/MAX861, FC = V
I
No load
LV = GND
–
No load, V
S
L
—
x C1) term in R
–
S
—
H
= 50mA to GND, C1 = C2 = 68µF
—
H
—
D
—
50mA, Frequency-Selectable,
D
—
N
–
N
–
DD
DD
< 0.3V
= V
OUT
DD
, FC = LV = GND, C1 = C2 = 10µF (Note 2), T
= -4V
OUT
CONDITIONS
.
FC = V
FC = GND
FC = OUT
FC = V
FC = GND
FC = OUT
R
to OUT
R
to GND
R
to OUT
R
to GND
MAX86_I/E
MAX86_M
DD
L
L
L
L
= 2k from V
= 1k from OUT
= 2k from V
= 1k from OUT
,
DD
DD
DD
DD
MIN
160
1.2
30
80
60
93
90
93
88
99
3
8
TYP
99.9
130
100
250
500
50
13
96
93
96
92
87
A
-2
6
= T
MIN
MAX
0.3
to T
10
-4
1
MAX
UNITS
, unless
kHz
µA
µA
µs
%
%
V
3