RT9182ACE RICHTEK [Richtek Technology Corporation], RT9182ACE Datasheet

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RT9182ACE

Manufacturer Part Number
RT9182ACE
Description
DUAL, LOW-NOISE, 200mA LDO REGULATOR
Manufacturer
RICHTEK [Richtek Technology Corporation]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RT9182ACES
Manufacturer:
RICHTEK/立錡
Quantity:
20 000
General Description
The RT9182 is a dual-channel, low noise, and low
dropout regulator supplying up to 200mA current at
each channel. The output voltage ranges from 1.5V
to 3.3V in 100mV increments and 2% accuracy by
operating from a +2.7V to +6.5V input.
The RT9182 uses an internal PMOS as the pass
device, which consumes 165µA supply current (both
LDOs on) independent of load current and dropout
conditions. The SHDN pin controls both outputs
simultaneously and consumes nearly zero operation
current in the disable mode making the IC suitable
for battery-power devices. Other features include a
reference voltage bypass pin to improve low noise
performance, current limiting, and over temperature
protection.
Ordering Information
RT9182
Marking Information
DS9182-02 April 2002
Part Number
RT9182ACE
RT9182BCE
Package type
E : SOT-26
Operating temperature range
Output voltage
A : 2.8V (Output1), 2.8V (Output2)
B : 3.0V (Output1), 3.0V (Output2)
C : Commercial standard
Marking
2M
2Q
Dual, Low-Noise, 200mA LDO Regulator
Preliminary
Features
• Up to 200mA Output Current (Each LDO)
• Shutdown Function
• 29µ µ µ µ V
• Current Limiting and Thermal Protection
• Short Circuit Protection
• 120mV Dropout at 100mA Load
• Two LDOs in SOT-26 Package
Applications
Pin Configurations
Typical Application Circuit
RT9182 CE
(Plastic SOT-26)
Part Number
Cellular Phones
Laptop, Notebook, and Palmtop Computers
Battery-powered Equipment
Hand-held Equipment
V
OUT2
OFF
2.2µF
RMS
10nF
ON
Low Noise Output
SHDN
BP
VOUT2
RT9182
GND
Pin Configurations
6
1
VOUT1
VIN
5
2
4
3
www.richtek-ic.com.tw
RT9182
2.2µF
2.2µF
V
TOP VIEW
1. VOUT2
2. GND
3. BP
4. SHDN
5. VIN
6. VOUT1
OUT1
V
IN
1

Related parts for RT9182ACE

RT9182ACE Summary of contents

Page 1

... Operating temperature range C : Commercial standard Output voltage A : 2.8V (Output1), 2.8V (Output2 3.0V (Output1), 3.0V (Output2) Marking Information Part Number Marking RT9182ACE RT9182BCE DS9182-02 April 2002 Preliminary Dual, Low-Noise, 200mA LDO Regulator Features • 200mA Output Current (Each LDO) • Shutdown Function • 29µ µ µ µ V • ...

Page 2

RT9182 Pin Description Pin Name Pin Function VOUT2 Output2 Voltage GND Ground BP Reference Noise Bypass SHDN Active Low Shutdown Input VIN Power Input VOUT1 Output1 Voltage Function Block Diagram VIN VOUT1 BP www.richtek-ic.com.tw 2 Preliminary Current Limit Thermal Protection ...

Page 3

Absolute Maximum Ratings Input Voltage Power Dissipation SOT-26 Junction Temperature Range Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec.) Electrical Characteristics (V = 3.6V 2.2µF, SHDN = V ...

Page 4

RT9182 Typical Operating Characteristics V = 2.8V 100mA, V OUT LOAD Quiescent Current vs. Supply Voltage 240 200 No Load I Load 160 120 2.5 3.5 4.5 Supply Voltage (V) Quiescent Current vs. Load Current ...

Page 5

Channel-to-Channel Isolation vs. Frequency 120 100 100 1K 10K Frequency (Hz) Line Transient Response T 1 > 1 > 1 > 1 > ≈ 4 3.5 2↓ 2↓ 2↓ 2↓ 50µS/Div Time Shutdown ...

Page 6

RT9182 Functional Description The RT9182 is integrated with two low noise, low dropout, and low quiescent current linear regulators designed primarily for battery-powered applications. Output voltages are optional ranging from 1.5V to 3.3V, and each channel can supply current up ...

Page 7

Applications Information Capacitor Selection and Regulator Stability Like any low-dropout regulator, capacitors used with the RT9182 must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 1µF on the RT9182 input and the amount ...

Page 8

RT9182 Input-Output (Dropout) Voltage A regulator’s minimum differential (or dropout voltage) determines the lowest usable supply voltage. In battery-powered systems, this will determine the useful end-of-life battery voltage. Because the RT9182 uses a P-channel MOSFET pass transistor, the dropout voltage ...

Page 9

Package Information C A Symbol DS9182-02 April 2002 Preliminary Dimensions In Millimeters Min Max 0.889 1.295 -- 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 ...

Page 10

RT9182 RICHTEK TECHNOLOGY CORP. Headquarter 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 www.richtek-ic.com.tw 10 Preliminary RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, ...

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