RE030 ATMEL Corporation, RE030 Datasheet

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RE030

Manufacturer Part Number
RE030
Description
RE030 is a Dual Mode Low Drop Out (LDO) Voltage Regulator Macrocell With Programmable Output Voltage Ranging From 1.75V to 2.1V, Rated For Loads up to 180 ma in Full Power Mode And 5 ma in Low Power Mode. it is Designed to be Integrated With Other An
Manufacturer
ATMEL Corporation
Datasheet

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Features
Description
RE030 is a dual mode Low Drop Out (LDO) voltage regulator macrocell with program-
mable output voltage ranging from 1.75V to 2.1V, rated for loads up to 180 mA in full
power mode and 5 mA in low power mode. (Both modes can be selected by the LP9
signal.) It is designed to be integrated with other analog cells, digital logic, microcon-
trollers, DSP cores and memory blocks into system-on-chip products.
The circuit consists of a PMOS pass device, an error amplifier and a feedback resis-
tive network, sized to achieve the required closed loop gain. These blocks make up
the regulating loop. An over-current and short circuit protection circuit has been
included to limit the output current delivered by the regulator, thus avoiding destruction
in case of a short circuit.
An external reference voltage V
ality. The target reference voltage is 1.231V delivered, for example, by BG019. Double
pads on the supply voltage V
used to reduce the total output resistance. Current reference is generated inside the
cell through a circuit supplied by a 2.5V ± 0.1V of regulated input voltage on V
Remote sense terminal V
output terminal near a critical point to improve performance of the regulator (e.g., con-
necting it to the package pin by double-bonding, thus avoiding the bonding resistance
influence). A ceramic capacitor of 2.2 µF connected from V
needed as external compensation.
Figure 1. Symbol
Note:
Dual Mode Low Drop Out Voltage Regulator
Programmable Output Voltage Ranging from 1.75V to 2.1V
3V to 5.5V Supply Operation
180 mA Maximum Load Current in Full Power Mode
Maximum Current Consumption 70 µA in Full Power Mode and 15 µA in Low Power Mode
Power-down Mode Consumption Less Than 1 µA
More Than 70dB (Typical) PSRR at 1 KHz
77 µV
0.35 µm CMOS Technology
Typical Application: Baseband Section Supply in Mobile Terminals
RMS
1. Pin names are written as they appear on the user screen when the symbol is
Output Noise in Full-power Mode
opened in the design tool environment.
(1)
CORES
BAT1A
BG
provides regulation of the load by connecting it to the
(bandgap voltage) is necessary for correct function-
/V
BAT1AA
and output voltage V
COREA
/V
COREA
COREAA
/V
to ground is
COREAA
SAUVC
are
.
Embedded ASIC
Macrocell:
Power
Management for
Mobile
Terminals (PM)
RE030
1.75V to 2.1V
180 mA
Dual Mode LDO
Regulator
Rev. 2706B–PMGMT–03/03
1

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RE030 Summary of contents

Page 1

... Typical Application: Baseband Section Supply in Mobile Terminals Description RE030 is a dual mode Low Drop Out (LDO) voltage regulator macrocell with program- mable output voltage ranging from 1.75V to 2.1V, rated for loads up to 180 mA in full power mode and low power mode. (Both modes can be selected by the LP9 signal ...

Page 2

... COREC GND1 Ground V Power Supply SAUVC V Analog Input BG ON9 Digital Input LP9 Digital Input HPVREG9<1:0> Digital Input LPVREG9 Digital Input RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator BAT1A BAT1AA ON9 LP9 GND1 ON9 Current Sensing and Limiting LP9 R11 GND1 ...

Page 3

... RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator Absolute Maximum Ratings Analog Signals ....................................... -0.3V to 6.5V Digital Signals......................................... -0.3V to 5.5V Output Current...................................Internally limited Junction Temperature ..........................- 150 C Electrical Specifications 125 BAT1A BAT1AA Table 1. Electrical Characteristics Symbol Parameter V /V Operating Supply Voltage BAT1A BAT1AA ...

Page 4

... Output Current COREA COREAA I Quiescent Current QQ V Line Regulation DC V Transient Line Regulation TRAN V Load Regulation DC V Transient Load Regulation TRAN RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator 4 Condition @100 Hz @1 kHz V / BAT1A @20 kHz BAT1AA @100 kHz @100 Hz @1 kHz V / BAT1A ...

Page 5

... RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator Table 1. Electrical Characteristics (Continued) Symbol Parameter Power Supply Rejection Ratio PSRR at Full Load (2) V Output Noise N T Rise Time R I Shut Down Current SD I Short-circuit Current CC Notes: 1. Obtained by considering the parasitics of a TFBGA100 Package. 2. Obtained by using BG019 as reference voltage generator. ...

Page 6

... Control Modes Application Example RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator 6 All digital signals are referred to the supply voltage V Table 2. Truth Table ON9 LP9 HPVREG[ ceramic capacitor ( 2.2 µF with ESR between 20 m ...

Page 7

... RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator Typical Performance Characteristics Note: In these graphs: – Output Voltage (V ) refers to V CORE – Battery Voltage (V ) refers to V BAT – Output Current (I ) refers to I CORE Full-power Mode Static Line Regulation at Full Load 0.25 0.00 -0.25 -0.50 -0.75 3 3.5 4 Input Voltage [V] Transient Line Regulation at Full Load 1 ...

Page 8

... rtu 5.0 4.5 4.0 3.5 3 2.5 2.0 1.5 1.0 0.5 0 RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator 8 (Conditions specified on page 11) 10000 100000 3.0 - 5.5V BAT -70 -90 -110 = - ...

Page 9

... RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator Typical Performance Characteristics Low-power Mode Static Line Regulation at Full Load 0.25 0.00 -0.25 -0.50 -0.75 -1.00 -1.25 -1.50 -1.75 -2.00 3 3.5 4 Input Voltage [V] Transient Line Regulation at Full Load 0.6 0.4 0.2 0.0 -0.2 -0.4 0.35 0.4 0.45 0.5 0.55 Time [ms] 2706B–PMGMT–03/03 (Conditions specified on page 11 4 0.6 0.65 0.7 0.75 0. tic tio ...

Page 10

... [ rtu 5.0 4.5 4.0 3.5 3 2.5 2.0 1.5 1.0 0.5 0 RE030 1.75/2.1V 180 mA Dual Mode LDO Regulator 10 (Conditions specified on page 11) 10000 100000 3. -70 -90 F req = -110 -130 = 4.25V -10 1E -11 ...

Page 11

... COREA COREAA Measures the maximum transient and DC variations of the output voltage of the RE030 when the load current changes between two specified values with fixed power supply; minimum rise time and fall time is 5 µs. Figure 5. Load Regulation 90% of max I COREA ...

Page 12

... Atmel Corporation 2003. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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