Rainbow Electronics MAX15028 User Manual
Page 2
MAX15027/MAX15028
1.425V to 3.6V Input, 1A Low-Dropout
Regulators with BIAS Input
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1; V
IN
= 1.8V, V
OUT
= 1.2V, EN = IN for MAX15027, EN = BIAS for MAX15028, I
OUT
= 100mA, T
A
= T
J
= -40°C to
+125°C. Typical values are at T
A
= +25°C, unless otherwise noted.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN, FB, SS, I.C. to GND..........................................-0.3V to +4.0V
BIAS to GND.............................................................-0.3V to +6V
EN to GND ................-0.3V to the lower of (V
BIAS
+ 0.3V) or +6V
OUT to GND ................................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
10-Pin TDFN, Multilayer Board
(derate 24.4mW/°C above +70°C) ..............................1951mW
Junction-to-Case Thermal Resistance,
θ
JC
.......................9°C/W
Junction-to-Ambient Thermal Resistance,
θ
JA
(Note 1)...41°C/W
Operating Junction Temperature Range ...........-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IN
MAX15027
1.425
3.600
V
BIAS
= 3V to 5.5V
1.425
3.600
Input Voltage Range
V
IN
MAX15028
BIAS = IN
3.000
3.600
V
MAX15027
1.275
1.325
1.375
Undervoltage Lockout
V
UVLO
V
IN
rising,
I
OUT
= 2mA
MAX15028
1.04
1.106
1.14
V
Undervoltage Lockout Hysteresis
V
UVLO_HYST
50
mV
V
IN
= 1.425V to 3.6V, V
OUT
= 1.2V,
I
OUT
= 1mA, V
BIAS
= 3.3V
160
275
410
V
IN
= 3.6V, V
OUT
= 3.3V, I
OUT
= 100mA
180
275
560
Quiescent GND Current
I
GND
V
IN
= 3.3V, V
OUT
= 3.3V, I
OUT
= 500mA
170
315
470
µA
Input Supply Current in Shutdown
I
IN_SD
V
EN
= 0, T
A
= - 40°C to + 85°C 0.1
5.5
µA
BIAS (MAX15028)
Input Voltage Range
V
BIAS
3
5.5
V
Undervoltage Lockout
V
BIAS_UVLO
V
BIAS
rising, I
OUT
= 2mA
2.3
2.5
2.7
V
Undervoltage Lockout Hysteresis
I
OUT
= 2mA
110
mV
Quiescent Input Supply Current
I
BIAS
V
EN
= V
BIAS
20
60
120
µA
V
IN
= 0, V
OUT
= 0,
V
BIAS
= 3.3V
1.2
2
V
I N
= 3.3V , V
OU T
= 0,
V
B I AS
= 3.3V
1.2
2
Input Supply Current in Shutdown
I
BIAS_SD
EN = GND
V
I N
= 3.3V , V
OU T
= 0,
V
B I AS
= 5V
1.5
3
µA
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial
.