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MAX8527EUD+T

P1-P3P4-P6P7-P9P10-P10
MAX8526/MAX8527/MAX8528
1.425V to 3.6V Input, 2A,
0.2V Dropout LDO Regulators
4 _______________________________________________________________________________________
Typical Operating Characteristics
(Typical values are: V
IN
= +1.8V, V
OUT
= +1.5V, I
OUT
= 2A, C
OUT
=10µF, C
IN
= 2.2µF, and T
A
= +25°C, unless otherwise noted.)
1.30
1.40
1.35
1.50
1.45
1.55
1.60
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX8526/27/28 toc01
INPUT VOLTAGE (V)
OUTPUT VOTAGE (V)
0 1.2 1.80.6 2.4 3.0 3.6
T
A
= -40°C TO +85°C
0
300
200
100
500
400
600
700
GROUND CURRENT
vs. INPUT VOLTAGE
MAX8526/27/28 toc03
INPUT VOLTAGE (V)
GROUND CURRENT (µA)
0 1.2 1.80.6 2.4 3.0 3.6
I
LOAD
= 2A
I
LOAD
= 0A
I
LOAD
= 1A
250
300
350
400
450
500
550
600
650
0 800400 1200 1600 2000 2400
GROUND CURRENT
vs. LOAD CURRENT
MAX8526/27/28 toc04
LOAD CURRENT (mA)
GROUND CURRENT (µA)
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
LINE-TRANSIENT RESPONSE
(V
IN
= 1.8V TO 2.5V, I
OUT
= 2A)
MAX8526/27/28 toc06
V
OUT
10mV/div
AC-COUPLED
V
IN
500mV/div
AC-COUPLED
100µs/div
LOAD-TRANSIENT RESPONSE
(I
LOAD
= 0.2A TO 2.2A; C
IN
= 220µF
ELECTROLYTIC CAP CLOSE TO IN)
MAX8526/27/28 toc07
V
OUT
50mV/div
AC-COUPLED
I
LOAD
1A/div
40µs/div
2.2A
0.2A
SHUTDOWN RESPONSE
MAX8526/27/28 toc08
V
OUT
1V/div
I
IN
2A/div
EN
2V/div
100µs/div
-10
10
0
50
40
30
20
70
60
80
0.01 10.1 10 100 1000
PSRR vs. FREQUENCY (MAX8526)
MAX8526/27/28 toc09
FREQUENCY (kHz)
PSRR (dB)
I
LOAD
= 100mA
MAX8526/MAX8527/MAX8528
1.425V to 3.6V Input, 2A,
0.2V Dropout LDO Regulators
_______________________________________________________________________________________
5
494
496
495
500
499
498
497
501
502
-40 10-15 35 60 85
FB VOLTAGE vs. TEMPERATURE
MAX8526/27/28 toc10
TEMPERATURE (°C)
FB VOLTAGE (mV)
I
LOAD
= 20mA
OUTPUT RIPPLE VOLTAGE
MAX8526/27/28 toc11
V
OUT
1mV/div
AC-COUPLED
10µs/div
3.5
3.6
3.7
3.8
3.9
4.0
-40 10-15 35 60 85
OVERCURRENT THRESHOLD
vs. TEMPERATURE
MAX8526/27/28 toc12
TEMPERATURE (°C)
OVERCURRENT THRESHOLD (A)
SHORT-CIRCUIT CURRENT
MAX8526/27/28 TOC13
V
OUT
1V/div
I
OUT
2A/div
40µs/div
0
15
45
30
60
75
0 800400 1200 1600 2000
CASE TEMPERATURE
vs. LOAD CURRENT
MAX8526/27/28 toc14
LOAD CURRENT (mA)
CASE TEMPERATURE (°C)
V
IN
= 2.5V; T
A
= +25°C
Typical Operating Characteristics (continued)
(Typical values are: V
IN
= +1.8V, V
OUT
= +1.5V, I
OUT
= 2A, C
OUT
=10µF, C
IN
= 2.2µF, and T
A
= +25°C, unless otherwise noted.)
MAX8526/MAX8527/MAX8528
1.425V to 3.6V Input, 2A,
0.2V Dropout LDO Regulators
6 _______________________________________________________________________________________
Pin Description
Functional Diagram
PIN
MAX8526
MAX8527 MAX8528
NAME
FUNCTION
111EN
Enable Input. Set low to place the device in low-current shutdown mode. Set
high for normal operation.
2–5 2–5 2–5 IN
Regulator Input. V
IN
can range from 1.425V to 3.6V. Bypass with a 2.2µF or
higher ceramic capacitor to GND.
6, 7, 14 7, 14 6, 14 T.P. Test Pin
888
GND
Ground
9 9 9 FB Feedback Pin. Connect to output through a voltage-divider to set the output.
10–13 10–13 10–13
OUT
Regulator Output. Bypass with a 10µF ceramic capacitor to GND (a smaller
capacitor can be used if maximum load is less than 2A, i.e., C
OUT
= I
OUT
(max)
x (1µF/200mA).
—6—
POK
Power-OK Output (MAX8527 Only). Open-drain output. Connect to a positive
supply with a pullup resistor. If not used, leave pin unconnected. See the
Detailed Description for more details.
—— 7
POR
Power-On Reset Output. Open-drain output. Connect to a positive supply with
a pullup resistor. If not used, leave pin unconnected. See the Detailed
Description for more details.
—EP
Exposed Pad on the Underside of the Package. Solder to the ground plane for
proper heat dissipation.
MAX8526
MAX8527
MAX8528
POK
(MAX8527 ONLY)
POR
(MAX8528 ONLY)
GND
REF
OVERTHERMAL
PROTECTION
SHUTDOWN
LOGIC
EN
IN
UNDERVOLTAGE
LOCKOUT
THRESHOLD
0.55V
0.45V
0.50V
ERROR AMP
WITH
SOFT-START
MOS DRIVER
WITH I
LIMIT
OUT
FB
P1-P3P4-P6P7-P9P10-P10

MAX8527EUD+T

Mfr. #:
Buy MAX8527EUD+T
Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators 1.425V to 3.6V Input 2A 0.2V Dropout LDO
Lifecycle:
New from this manufacturer.
Delivery:
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