sp6205em5/tr Exar Corporation, sp6205em5/tr Datasheet - Page 3

• Manufacturer Part Number: sp6205em5/tr
• Description: Sp6205 -low Noise 500ma Cmos Ldo Regulators
• Manufacturer: Exar Corporation

Date: Apr2-07
Note 1: Maximum power dissipation can be calculated using the formula: P
the junction temperature, T
is 6°C/W for this package. Exceeding the maximum allowable power dissipation will result in excessive die
temperature and the regulator will go into thermal shutdown mode.
for the -pin DFN. A part mounted on a PC board will deliver improved thermal performance based upon copper
surface area.
Note 2: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
Note 3: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Changes in
output voltage due to heating effects are covered by the thermal regulation specification.
Note 4: Dropout-voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at V differential.
Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of
the load current plus the ground pin current.
Note 6: Output noise voltage is defined within a certain bandwidth, namely 0Hz < BW < 00kHz. An external
bypass cap (0nF) from reference output (BYP pin) to ground significantly reduces noise at output.
Note 7: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power
dissipation is applied, excluding load and line regulation effects. Specifications are for a 300mA load pulse at V
6V for t = ms.
Note 8: The wake-up time (T
high.
Note 9: The total turn-on time is called the settling time (T
output and the bypass node are within 2% of their fully enabled values when released from shutdown.
Note 10: For output voltage versions requiring VIN to be lower than V, timing (T
Date: 2//05
V IN
EN
Low Noise Fixed Regulator - 5 Pin
reference
bandgap
1.25V
thermal shutdown
current limit
&
A
SP6203/SP6205 Low Noise, 300 and 500mA CMOS LDO Regulators
is the ambient temperature and
WU
SP6203/6205 Low Noise, 300 and 500mA CMOS LDO Regulators
) is defined as the time it takes for the output to start rising after enable is brought
GND
V
BYP
OUT
(optional)
Cbyp
3
3
S
), which is defined as the condition when both the
V
EN
IN
ELECTRiCAL SPECiFiCATiONS NOTES
JA
Low Noise Adjustable Regulator - 5 Pin
is the junction-to-ambient thermal resistance.
bandgap
reference
JA
is 191
D
1.25V
= (T
thermal shutdown
°
C/W for SOT-23-5, and is 59
current limit
ON
J(max)
FUNCTIONAL DIAGRAM
&
& T
- T
OFF
© Copyright 2005 Sipex Corporation
A
) increases slightly.
) /
GND
JA
© 2007 Sipex Corporation
, where T
V
R1
ADJ
R2
OUT
J(max)
°
C/W
IN
is
JC
=