MAX850ESA+ Maxim Integrated Products, MAX850ESA+ Datasheet - Page 3

• Manufacturer Part Number: MAX850ESA+
• Description: IC PWR SUP CHRG PUMP 8SOIC
• Manufacturer: Maxim Integrated Products
• Type: Switched Capacitor (Charge Pump), Invertingr

Specifications of MAX850ESA+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -4.1V, -05 ~ -9 V
• Current - Output: 5mA
• Frequency - Switching: 100kHz
• Voltage - Input: 4.5 ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Function: Inverting
• Output Voltage: - 4.1 V or - 0.5 V to - 9 V
• Output Current: 5 mA
• Supply Current: 2 mA
• Maximum Operating Temperature: + 85 C
• Input Voltage: 4.5 V to 10 V
• Maximum Power Dissipation: 471 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Switching Frequency: 100 KHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

__________________________________________Typical Operating Characteristics
(Circuit of Figure 2a, V
Charge-Pump Power Supplies for GaAsFET Bias
-4.15
-4.14
-4.13
-4.12
-4.16
-4.11
-4.10
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
5.0
0
NO-LOAD SUPPLY CURRENT
2.0
6.0
vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
vs. INPUT VOLTAGE
OUTPUT VOLTAGE
INPUT VOLTAGE (V)
7.0
4.0
_______________________________________________________________________________________
IN
= 6V, T
8.0
6.0
A
8.0
9.0
= +25°C, unless otherwise noted.)
10.0
10.0
Low-Noise, Regulated, Negative
-4.12
-4.12
-4.11
-4.10
-4.09
-4.08
-4.13
-4.07
-4.06
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
80
70
60
50
40
30
20
10
5.0
-40
1.0 1.5
INPUT VOLTAGE OVER TEMPERATURE
V
I
OUT
IN
EFFICIENCY vs. LOAD CURRENT
-20
= 10.0V
= 2.5mA
6.0
OUTPUT VOLTAGE vs.
2.0 2.5 3.0 3.5
vs. TEMPERATURE
SUPPLY CURRENT
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
0
TEMPERATURE (°C)
7.0
20
T
40
A
8.0
= -40°C
T
V
T
V
A
60
V
IN
A
IN
= +25°C
IN
4.0 4.5 5.0
= +85°C
= 10.0V
9.0
= 5.0V
= 6.0V
80
10.0
100
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
60
50
40
30
20
10
5.0
5.0
MAXIMUM OUTPUT CURRENT
6.0
6.0
vs. INPUT VOLTAGE
START-UP TIME vs.
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE
7.0
7.0
8.0
8.0
I
OUT
9.0
9.0
= 5mA
10.0
10.0
3