MAX1935ETA-T Maxim Integrated Products, MAX1935ETA-T Datasheet - Page 9

• Manufacturer Part Number: MAX1935ETA-T
• Description: Low Dropout (LDO) Regulators 500mA
• Manufacturer: Maxim Integrated Products

Specifications of MAX1935ETA-T

• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 5.5 V
• Output Voltage: 0.8 V to 4.5 V
• Output Type: Adjustable
• Dropout Voltage (max): 0.4 V at 500 mA
• Output Current: 500 mA
• Line Regulation: 0 % / V
• Voltage Regulation Accuracy: 2.50%
• Maximum Power Dissipation: 1.95 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TDFN-8 EP
• Minimum Operating Temperature: - 40 C
• Reference Voltage: 0.8 V

response graphs (see the 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. A
typical transient overshoot for a step change in the load
current from 5mA to 500mA is 40mV. Increasing the
output capacitor’s value and decreasing the ESR
attenuates the overshoot.
A regulator’s minimum input-to-output voltage differential
(dropout voltage) determines the lowest usable supply
voltage. In battery-powered systems, this determines the
useful end-of-life battery voltage. Because the MAX1806
uses a P-channel MOSFET pass transistor, its dropout
voltage is a function of drain-to-source on-resistance
(R
Operating Characteristics):
TRANSISTOR COUNT: 949
Figure 2. Adjustable Output Using External Feedback Resistors
DS(ON)
+2.25V TO +5.5V
ON
OFF
V
V
DROPOUT
IN
) multiplied by the load current (see the Typical
1µF
C
IN
Input-Output (Dropout) Voltage
IN
IN
SHDN
POK
= V
_______________________________________________________________________________________
IN
MAX1935
- V
500mA, Low-Voltage Linear Regulator
OUT
Chip Information
GND
OUT
OUT
SET
= R
DS(ON)
C
10µF
OUT
R1 = R2
✕
I
OUT
V
R
R
0.8V
OUT
2
1
V
- 1
OUT
Figure 3. Power Operating Regions: Maximum Output Current
vs. Input-Output Voltage Difference
600
500
400
300
200
100
0
0
0.5
INPUT-OUTPUT VOLTAGE DIFFERENCE (V)
1.0
1.5
2.0
T
A
in Tiny QFN
= +85°C
2.5
T
A
3.0
= +70°C
3.5
4.0
4.5
5.0
9