RE029 dual mode Drop (LDO) voltage regulator macrocell with fixed 1.8V
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Dual Mode Drop Voltage Regulator 1.8V Fixed Output Voltage 5.5V Supply Operation Maximum Load Current Full Power Mode Maximum Current Consumption Full Power Mode Power Mode Power-down Mode Consumption Less Than More Than 70dB (Typical) PSRR µVRMS Output Noise 0.35 CMOS Technology Typical Application: Baseband Memory Section Supply Mobile Terminals
RE029 dual mode Drop (LDO) voltage regulator macrocell with fixed 1.8V output voltage, rated loads full power mode power mode. (Both modes selected signal.) designed integrated with other analog cells, digital logic, microcontrollers, cores memory blocks into system-on-chip products. circuit consists PMOS pass device, error amplifier feedback resistive network, sized achieve required closed loop gain. These blocks make regulating loop. over-current short circuit protection circuit been included limit output current delivered regulator, thus avoiding destruction case short circuit. external reference voltage (bandgap voltage) necessary correct functionality. target reference voltage 1.231V delivered, example, BG019. Double pads supply voltage VBAT1B/VBAT1BB output voltage VMLVA/VMLVAA used reduce total output resistance. Current reference generated inside cell through circuit supplied 2.5V 0.1V regulated input voltage SAUVC. Remote sense terminal VMLVS provides regulation load connecting output terminal near critical point improve performance regulator (e.g., connecting package double-bonding, thus avoiding bonding resistance influence). ceramic capacitor connected from VMLVA/VMLVAA ground needed external compensation. Figure Symbol
Embedded ASIC Macrocell: Power Management Mobile Terminals (PM) RE029 1.8V Dual Mode Regulator
Note:
names written they appear user screen when symbol opened design tool environment.
Rev. 2705B-PMGMT-03/03
Functional Diagram
Figure Functional Diagram
VBAT1B VBAT1BB VBAT1C
GND1
VMLVC VMLVA VMLVAA
GND1
Current Sensing Limiting
VMLVS
GND1
SAUVC
IBIAS ON8,
GND1
GND1
Name VBAT1B VBAT1BB VMLVA VMLVAA VMLVS VMLVC VBAT1C GND1 VSAUVC Power Supply Power Supply Analog Output Analog Output Analog Input Analog Output Auxiliary Power Supply Analog Ground Positive Power Supply Analog Input Digital Input Digital Input Type External External External External External Internal Internal Internal Internal Internal Internal Internal Function Power Supply Power Supply Output Voltage Output Voltage Sense Voltage Output Voltage Power Supply Ground Power Supply Voltage Reference Enable Command Power Mode Command Value 5.5V 5.5V 1.7V 1.9V 1.7V 1.9V 1.7V 1.9V 1.7V 1.9V 5.5V 2.5V 0.1V 1.231V VBAT1B/VBAT1BB VBAT1B/VBAT1BB
RE029 1.8V Dual Mode Regulator
2705B-PMGMT-03/03
RE029 1.8V Dual Mode Regulator
Absolute Maximum Ratings*
Analog Signals -0.3V 6.5V Digital Signals. -0.3V 5.5V Output Current.Internally limited Junction Temperature .-20°C 150°C
*NOTICE: Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. This stress rating only functional operation device these other conditions beyond those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
Electrical Specifications(1)
-20°C 125°C, VBAT1B/VBAT1BB 5.5V unless otherwise specified, output capacitance Table Electrical Characteristics
Symbol VBAT1B/VBAT1BB VSAUVC Parameter Operating Supply Voltage Auxiliary Operating Supply Voltage Temperature Range Full Power Mode VMLVA/VMLVAA IMLVA/IMLVAA VTRAN VTRAN Output Voltage Output Current Quiescent Current Line Regulation Transient Line Regulation Load Regulation Transient Load Regulation IMLVA/IMLVAA IMLVA/IMLVAA rise time fall time IMLVA/IMLVAA; IMLVA/IMLVAA; rise time fall time @100 VBAT1B/ VBAT1BB @100 @100 PSRR(2) Power Supply Rejection Ratio Full Load VBAT1B/ VBAT1BB 4.25V @100 @100 VBAT1B/ VBAT1BB 5.5V @100 Output Noise
Condition
Unit
1.72
1.87
Bandwidth
µVRMS
2705B-PMGMT-03/03
Table Electrical Characteristics (Continued)
Symbol Parameter Rise Time Shut Down Current Short-circuit Current Threshold Power Mode VMLVA/VMLVAA IMLVA/IMLVAA VTRAN VTRAN Output Voltage Output Current Quiescent Current Line Regulation Transient Line Regulation Load Regulation Transient Load Regulation IMLVA/IMLVAA IMLVA/IMLVAA rise time fall time IMLVA/IMLVAA IMLVA/IMLVAA; rise time fall time @100 VBAT1B/ VBAT1BB @100 @100 PSRR(2) Power Supply Rejection Ratio Full Load VBAT1B/ VBAT1BB 4.25V @100 @100 VBAT1B/ VBAT1BB 5.5V @100 Notes: Output Noise Rise Time Shut Down Current
Condition Full Load VMLVA/VMLVAA
Unit
9.75
11.5
13.75
Bandwidth Full Load VMLVA/VMLVAA
µVRMS
Obtained considering parasitics TFBGA100 Package. This parameter shows immunization circuit taking into account voltage ripple battery voltage different frequencies shown. Obtained using BG019 reference voltage generator.
RE029 1.8V Dual Mode Regulator
2705B-PMGMT-03/03
RE029 1.8V Dual Mode Regulator
Control Modes
digital signals referred supply voltage VBAT1B, VBAT1BB. Table Truth Table
VMLVA/VMLVAA Power down (High-Z) Power Full Power Mode VMLVA/VMLVAA 1.8V Power Power Mode VMLVA/VMLVAA 1.8V
Application Example
ceramic capacitor (CL) with between connected from VMLVA/VMLVAA ground needed external compensation.
Description Capacitor (CL) Units
Figure Application Example
2.5V Regulator (e.g., RE031)
2.5V
VSAUVC
VBAT1B VBAT1BB
1.231V Bandgap (e.g., BG019)
VMLVA VMLVAA VMLVS
Battery Pack
Digital Core
VMLVC VBAT1C GND1
2705B-PMGMT-03/03
Typical Performance Characteristics (Conditions specified page
Note. these graphs: Output Voltage (VMLV) refers VMLVA/VMLVAA Battery Voltage (VBAT) refers VBAT1B/VBAT1BB Output Current (IMLV) refers IMLVA/IMLVAA
Static Line Regulation Full Load Full Power Mode
-0.5 -1.0 -1.5 -2.0 4.25V 5.5V
Output Voltage Change [mV]
Battery Voltage
Transient Line Regulation Full Load Full Power Mode 2.500 2.000 Output Voltage Change [mV]
5.000 4.000 3.000 2.000 1.000 0.000 -1.000 -2.000 -3.000 -4.000 -5.000 5.5V 4.25V
1.500 1.000 0.500 0.000 -0.500 -1.000 -1.500 -2.000 0.35
0.45 Time [ms]
0.55
0.35
0.45
0.55
RE029 1.8V Dual Mode Regulator
2705B-PMGMT-03/03
RE029 1.8V Dual Mode Regulator
Typical Performance Characteristics (Conditions specified page
ctio ctio
1000
10000
100000
5.5V 4.25V
Freq Freq Freq 100K
-100 -110
-100 -110
Freq 100Hz
.25V
ctru 4.25V
1.0E
rt(H
1.0E
Total output nois
1.0E
1.0E
1.0E 1000
10000
100000
2705B-PMGMT-03/03
Typical Performance Characteristics (Conditions specified page
Static Line Regulation Full Load Power Mode
4.25V 5.5V
Output Voltage Change [mV]
Battery Voltage
Transient Line Regulation Full Load Power Mode 1.500 1.000 0.500 0.000 -0.500 -1.000 -1.500 0.35
5.5V
4.25V
Output Voltage Change [mV]
0.45 Time [ms]
0.55
RE029 1.8V Dual Mode Regulator
2705B-PMGMT-03/03
RE029 1.8V Dual Mode Regulator
Typical Performance Characteristics (Conditions specified page
ctio ctio
1000
10000
100000
5.5V
4.25V
-100
100K
100Hz -100
.25V
ctru 4.25V
1.0E
rt(H
1.0E
Total output nois
1.0E
1.0E
1.0E 1000
10000
10000
2705B-PMGMT-03/03
Terminology
Line Regulation
Measures maximum transient variations output voltage RE029 when supply changes between specified values with fixed load current; minimum rise time fall time Figure Line Regulation
3.4V VBAT1B/VBAT1BB
VMLVA/VMLVAA VTRAN
Load Regulation
Measures maximum transient variations output voltage RE029 when load current changes between specified values with fixed power supply; minimum rise time fall time Figure Load Regulation
IMLVA/IMLVAA IMLVA/IMLVAA IMLVA/IMLVAA
VTRAN VMLVA/VMLVAA
RE029 1.8V Dual Mode Regulator
2705B-PMGMT-03/03
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2705B-PMGMT-03/03
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