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RT9177-32CBR の電気的特性と機能

RT9177-32CBRのメーカーはETCです、この部品の機能は「Ultra-Low-Noise 200mA LDO Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 RT9177-32CBR
部品説明 Ultra-Low-Noise 200mA LDO Regulator
メーカ ETC
ロゴ ETC ロゴ 




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RT9177-32CBR Datasheet, RT9177-32CBR PDF,ピン配置, 機能
Preliminary
RT9177
Ultra-Low-Noise 200mA LDO Regulator
General Description
The RT9177 is a 200mA low dropout and low noise
micro-power regulator suitable for portable RF
applications. The output voltage accuracy within
±2% and range from 2.4V to 3.2V in 100mV
increments could be selected. It is designed for
using very low ESR output capacitor. Its output
remains stable even in using 1µF ceramic as its
output capacitor.
Using an internal PMOS as the pass device cause
that don’t need extra GND current in heavy load and
dropout conditions. In shutdown mode, nearly zero
operation current cause the IC is suitable for
battery-power devices. Other features including
current limiting, over temperature protection and
adding a capacitor in bypass pin to improve its noise
performance are functional.
Ordering Information
RT9177-…… … ……
Package type
B : SOT-25 Type I
BR : SOT-25 Type II
Operating temperature range
C: Commercial standard
Output voltage
24 : 2.4V
25 : 2.5V
:
:
31 : 3.1V
32 : 3.2V
Features
z Ultra-Low-Noise(150nV/ Hz ) for RF Application
z 1µF Ceramic COUT Stable
z Low Dropout Voltage(220mV @ 200mA)
z Low Operation Current - 80µA Typical
z Shutdown Function
z Low Temperature Coefficient
z Current and Thermal Limiting
z Custom Voltage Available
z SOT-25 Package
Applications
z Cellular Telephones
z Laptop, Notebook, and Palmtop Computers
z Battery-powered Equipment
z Hand-held Equipment
Pin Configurations
Part Number
Pin Configurations
RT9177-……CB
(Plastic SOT-25)
54
TOP VIEW
1 23
1. IN
2. GND
3. SHDN
4. BP
5. OUT
RT9177-……CBR
(Plastic SOT-25)
54
TOP VIEW
1 23
1. OUT
2. GND
3. IN
4. SHDN
5. BP
Typical Application Circuit
VIN
CIN
1µF
ON
OFF
RT9177
IN OUT
GND
SHDN
COUT
1µF
VOU T
CBP
10nF
DS9177-00 Feb. 2001
www.richtek-ic.com.tw
1

1 Page





RT9177-32CBR pdf, ピン配列
Preliminary
RT9177
Absolute Maximum Ratings
z Input Voltage VIN
z Power Dissipation
SOT-25
z Operating Junction Temperature Range
z Storage Temperature Range
z Thermal Resistance
RθJA
z Lead Temperature
(Soldering 5 sec.)
7V
0.25W
40°C to 125°C
65°C to 150°C
250°C/W
260°C
Electrical Characteristics
(VIN = 5.0V, CIN = 1µF, COUT = 1µF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
Input Voltage
VIN
2.5 --
6
V
Output Voltage Accuracy
VOUT IL = 1mA
-2 -- +2
%
Maximum Output Current
IMAX
200 -- --
mA
Current Limit
ILIMIT RLOAD = 1 Ohm
-- 300 --
mA
GND Pin Current
No Load
IG IOUT = 200mA
-- 80 150
-- 90 150
µA
Dropout Voltage (Note)
(VOUT(Nominal)3.0V Version)
VDROP
IOUT = 1mA
IOUT = 50mA
IOUT = 200mA
-- 1.1 5
-- 55 100
-- 220 300
mV
Line Regulation
VLINE VIN = (VOUT+0.15) to 6V, IOUT = 1mA -0.2 -- +0.2 %/V
Load Regulation
VLOAD IOUT = 0mA to 200mA
-- 0.01 0.04 %/mA
SHDN Input High Threshold
VIH VIN = 3V to 5.5V
1.0 -- --
V
SHDN Input Low Threshold
VIL VIN = 3V to 5.5V
-- -- 0.4
V
SHDN Bias Current
ISD
-- -- 100 nA
Shutdown Supply Current
IGSD
VOUT = 0V
-- 0.01 1
µA
Thermal Shutdown Temperature TSD
-- 150 --
°C
Output Noise
eno CBP = 10nF, COUT = 10µF
-- 150 -- nV/ Hz
Ripple Rejection
PSRR F = 100Hz, CBP = 10nF, COUT = 10µF -- 68 --
dB
Notes: Dropout voltage definition: VIN - VOUT when VOUT is 50 mV below the value of VOUT at VIN = VOUT + 0.5V
DS9177-00 Feb. 2001
www.richtek-ic.com.tw
3


3Pages


RT9177-32CBR 電子部品, 半導体
RT9177
Preliminary
4
3
2
1
0
-1
-2
-10
Load Transitne Response
from 1mA to 100mA
100mA Load
1mA Load
CIN = 1µF
COUT = 1µF
VIN = 5V
TA = 25°C
10 30 50 70 90
Time (uS)
4
3
2
1
0
-1
-2
-10
Load Transitne Response
from 100mA to 1mA
100mA Load
1mA Load
CIN = 1µF
COUT = 1µF
VIN = 5V
TA = 25°C
10 30 50 70 90
Time (uS)
www.richtek-ic.com.tw
6
DS9177-00 Feb. 2001

6 Page



ページ 合計 : 12 ページ
 
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部品番号部品説明メーカ
RT9177-32CB

Ultra-Low-Noise 200mA LDO Regulator

ETC
ETC
RT9177-32CBR

Ultra-Low-Noise 200mA LDO Regulator

ETC
ETC


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