SP6205ER-L-TR Datasheet, PDF (3/14 Pages) Exar Corporation – 300m A/ 500m A Low Noise CMOS LDO Regulators

SP6 2 0 3 / SP6 2 0 5
3 0 0 m A / 5 0 0 m A Lo w N o i se CM OS LDO Re g u l a t o r s
Parameter
Turn - On Time (T ON) ⁹
(from shutdown mode)
Turn - Off Time (T OFF)
Output Discharge Resistance
Enable Input Logic Low Voltage
Enable Input Logic High Voltage
Min.
1.6
Typ.
60
100
15
30
Max.
120
250
25
0.4
Units
µS
µS
Ÿ
V
V
Conditions
VIN • 4V ¹⁰
I OUT = 30mA
I OUT = 0.1mA, V IN • 4V ¹⁰
I OUT = 300mA, V IN • 4V ¹⁰
No Load
‡ Regulator Shutdown
‡ Regulator Enabled
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 1V differential.
Note 5: Ground pin current is the regulator quiescent current. The total current drawn from th
e 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 10Hz < BW < 100kHz. An external
bypass cap
( 10nF) from reference output (BYP pin) to ground significantly reduce
s noise at output.
1RWH  7KHUPDO UHJXODWLRQ LV GHILQHG DV WKH FKDQJH LQ RdXisWsipSatXionWis YROWDJH
applied, excluding load and line regulation effects. Specifications are for a 300mA load pulse at V
IN = 6V for t = 1ms.
Note 8: The wake - up time (T WU) is defined as the time it takes for the output to start rising after enable is brought
high.
Note 9: The total turn - on time is called the settling time (T
S), which is defined as the condition when both the
th e bypass node are within 2% of their fully enabled values when released from shutdown.
output and
Note 10: For output voltage versions requiring V
IN to be lower than 4V, timing (T ON & T OFF) increases slightly.
BLOCK DIAGRAM
Fig. 2: SP6203/ SP6205 Functional Diagram
© 2012 Exar Corporation
3/ 14
Rev. 2.0.0