MAX1720EUT+T Maxim Integrated Products, MAX1720EUT+T Datasheet - Page 3

• Manufacturer Part Number: MAX1720EUT+T
• Description: IC VOLT INV SW CAP SOT23-6
• Manufacturer: Maxim Integrated Products
• Type: Switched Capacitor (Charge Pump), Invertingr

Specifications of MAX1720EUT+T

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -1.5 ~ -5.5 V
• Current - Output: 25mA
• Frequency - Switching: 12kHz
• Voltage - Input: 1.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Power - Output: 696mW
• Function: Inverting
• Output Voltage: - 1.25 V to - 5.5 V
• Output Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
(V
(MAX1719/MAX1721), circuit of Figure 1, T
(Circuit of Figure 1, V
wise noted.)
Note 1: Capacitor contribution (ESR component plus (1/f
Note 2: All specifications from -40°C to +85°C are guaranteed by design, not production tested.
Note 3: The MAX1719/MAX1720/MAX1721 may draw high supply current during startup, up to the minimum operating supply voltage.
Supply Voltage Range
Quiescent Current (Note 3)
Oscillator Frequency
Voltage Conversion Efficiency
Output Resistance (Note 1)
Output Current
OUT to GND Shutdown
Resistance
SHDN/ SHDN Input Logic High
SHDN/ SHDN Input Logic Low
IN
-1
-2
-3
-4
-5
= +5V, SHDN = GND (MAX1719), SHDN = IN (MAX1720/MAX1721), C1 = C2 = 10µF (MAX1720), C1 = C2 = 1µF
0
0
To guarantee proper startup, the input supply must be capable of delivering 90mA more than the maximum load current.
PARAMETER
5
V
V
IN
IN
V
10 15
IN
vs. OUTPUT CURRENT
= +3.3V
= +1.5V
= +5V
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE
20 25
_______________________________________________________________________________________
IN
= +5V, SHDN = GND (MAX1719), SHDN = IN (MAX1720/MAX1721), C1 = C2 = C3, T
V
IN
30 35 40 45 50
= +2V
SYMBOL
R
O
f
I
,
V
I
OSC
OUT
V
R
V
CC
SHDN
IN
IH
IL
O
Voltage Inverters with Shutdown
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
R
MAX1720
MAX1719/MAX1721
MAX1720
MAX1719/MAX1721
I
I
Continuous, long-term
SHDN = IN (MAX1719), SHDN = GND
(MAX1720/MAX1721), OUT is internally
forced to GND in shutdown
+2.5V ≤ V
V
+2.5V ≤ V
V
OUT
OUT
IN (MIN)
IN (MIN)
L
100
90
80
70
60
50
40
30
20
10
= 10kΩ
0
= 0
= 10mA
0
EFFICIENCY vs. OUTPUT CURRENT
V
IN
SOT23, Switched-Capacitor
5
≤ V
≤ V
IN
IN
OSC
= +1.5V
10 15 20
≤ +5.5V
≤ +5.5V
IN
IN
) · C) is approximately 20% of output impedance.
OUTPUT CURRENT (mA)
≤ +2.5V
≤ +2.5V
CONDITIONS
MAX1720
V
IN
= +2V
25 30 35
Typical Operating Characteristics
MAX1720
MAX1719/MAX1721
V
IN
V
= +3.3V
40
IN
= +5V
45
50
100
90
80
70
60
50
40
30
20
10
0
V
IN
MIN
0
1.5
1.6
2.1
60
99
6
- 0.2
EFFICIENCY vs. OUTPUT CURRENT
V
5
IN
= +1.5V
10 15 20
MAX1719/MAX1721
OUTPUT CURRENT (mA)
TYP
A
V
IN
= +25°C, unless other-
= +2V
25 30 35
MAX
100
750
200
5.5
5.5
0.6
0.2
21
65
25
12
V
IN
V
= +3.3V
IN
40
mA
= +5V
UNITS
kHz
45
%
µA
Ω
Ω
V
V
V
RMS
50
3