ILC7280CS-2530 Impala Linear Corporation, ILC7280CS-2530 Datasheet

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ILC7280CS-2530

Manufacturer Part Number
ILC7280CS-2530
Description
MICROPOWER DUAL 150MA CMOS RF LDO REGULATORS WITH 75DB RIPPLE REJECTION
Manufacturer
Impala Linear Corporation
Datasheet
The ILC7280 is two independent 150mA low dropout (LDO)
voltage regulators in an 8-pin MSOP package. Each regu-
lator output is independently short circuit protected and has
independent enable lines. The device offers a unique com-
bination of low dropout voltage and low quiescent current of
CMOS as well as the low noise and high ripple rejection
characteristics of bipolar LDO regulators. Moreover, only
one input capacitor is required.
Dropout Voltage: Typically 150mV at 150mA load, and
1mV at 1mA load.
Ground pin current: Typically 130µA at 1mA load, and
135µA at 150mA load.
Ripple Rejection: 55dB at 1kHz and 60dB at 100kHz.
Shutdown mode: Less than 0.5µA quiescent current in
shutdown mode.
Small package: MSOP-8
Small capacitor: Requires only a 0.47µF external capacitor
on the regulator output.
Precision output: Output voltage trimmed to 1% accuracy.
Output Noise: 80µV
at pin 3 will further reduce noise on V
Voltage Pairings available: 3.0/3.0V, 3.0/2.8V, 3.0/2.5V,
2.8/2.8V
ILC7280 1.8
General Description
Figure 1: Typical Application
Note: Enable may be connected to V
C
ILC7280
Micropower Dual 150mA CMOS RF LDO™ Regulators
with 75dB Ripple Rejection
NOISE
Impala Linear Corporation
is common to both LDOs
Impala Linear Corporation
RMS
Advance
, optional noise bypass capacitor
ILC7280CS-2530
ILC7280CS-3028
ILC7280CS-2828
ILC7280CS-3030
ILC7280CS-3025
IN
,
OUTA/B
Ordering Information* (T
(408) 574-3939
0.47-2.2µF
ceramic
V
V
OUTA
OUTB
0.47-2.2µF
150mA 3.0V and 2.8V LDO regulators
ceramic
150mA 2.5V and 3.0V LDO regulators
150mA 2.8V and 2.8V LDO regulators
150mA 3.0V and 3.0V LDO regulators
150mA 3.0V and 2.5V LDO regulators
+
• Guaranteed 150mA output per regulator
• Ultra low 150mV dropout at 150mA
• 1% output voltage accuracy
• Requires only 0.47µF output capacitor
• Only 150µA ground current at 150mA load
• 60dB ripple rejection at 1kHz (C
• 80µV
• Excellent line and load transient response
• Over current / over temperature protection
• 8-pin MSOP package
• -60dB cross talk
• Cellular Phones, pagers and wireless headsets
• Palmtops, organizers, PDAs and portable electronics
• Battery powered portable appliances and equipment
• Remote data accumulation and instrumentation
+
www.impalalinear.com
A
Features
Applications
= -40°C to +85°C)
RMS
GND
(optional)
C
22pF
NOISE
noise at BW = 300Hz to 50kHz
OUT
ceramic
= 0.47µF)
1µF
EN
EN
V
May 2000
INB
A
B
+
V
4.7µF
INA
+
1

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ILC7280CS-2530 Summary of contents

Page 1

... Precision output: Output voltage trimmed to 1% accuracy. Output Noise: 80µV , optional noise bypass capacitor RMS at pin 3 will further reduce noise on V Voltage Pairings available: 3.0/3.0V, 3.0/2.8V, 3.0/2.5V, 2.8/2.8V ILC7280CS-2530 ILC7280CS-3028 ILC7280CS-2828 ILC7280CS-3030 ILC7280CS-3025 Figure 1: Typical Application Note: Enable may be connected common to both LDOs ...

Page 2

... If maximum current required from each regulator then connect both pin 6 and pin Impala Linear Corporation ILC7280 1 INA OUTA EN GND OUTB INB NOISE(optional) B MSOP (TOP VIEW) ILC7280CS-XXXX Pin Description (408) 574-3939 www.impalalinear.com Advance * * Galvanic connection only. DD May 2000 2 ...

Page 3

... Absolute Maximum Ratings (Note 1) Parameter Input Voltage S/D Input Voltage Output Current Output Voltage Power Dissipation Maximum Junction Temperature Storage Temperature ESD Rating Operating Input Voltage Operating Ambient Temperature Package Thermal Resistance Impala Linear Corporation ILC7280 1.8 Symbol S/D I OUT V OUT ...

Page 4

... Micropower dual 150mA CMOS RF LDO™ Regulators with 75dB Ripple Rejection Electrical Characteristics ILC7280CS Unless otherwise specified, all limits are at T Boldface limits apply over the operating temperature range. (Note 2) Parameter Output Voltage Output Voltage Output Voltage Line Regulation Dropout Voltage (Note 3) ...

Page 5

... Micropower Dual 150mA CMOS RF LDO™ Regulators with 75dB Ripple Rejection Electrical Characteristics ILC7280CS Unless otherwise specified, all limits are at T Boldface limits apply over the operating temperature range. (Note 2) Parameter Shut Down Input Voltage Peak Output Current (Note 4) Output Noise Voltage (RMS) ...

Page 6

... Micropower Dual 150mA CMOS RF LDO™ Regulators with 75dB Ripple Rejection V INA NOISE INB Impala Linear Corporation ILC7280 1 CURRENT LIMIT THERMAL SHUTDOWN BANDGAP REF. CURRENT LIMIT THERMAL SHUTDOWN + - *Optional (408) 574-3939 www.impalalinear.com Advance V OUTA GND V OUTB 6 May 2000 ...

Page 7

... Conversely, faster start up times or instant-on NOISE applications will require smaller values of C sion with the pin left open. The trade-off of noise to response should be considered. Impala Linear Corporation ILC7280 1.8 Output Capacitor An output capacitor is required from V GND to prevent oscillation and minimize the effect of load transient currents ...

Page 8

... The remaining regulator must be limited to 375mW - 267.5mW or 107.5mW. An advantage of the ILC7280 low-dropout voltage charac- teristic is that using the lowest possible input voltage can minimize power dissipation. Impala Linear Corporation ILC7280 1 ...

Page 9

... All dimensions in inches Life Support Policy Impala Linear Corporation’s products are not authorized for use as critical components in life support devices or systems. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use pro- vided in the labeling, can be reasonably expected to result in a significant injury to the user ...

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