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LD39030 데이터시트 PDF




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부품번호 LD39030 기능
기능 300mA very low quiescent current linear regulator IC
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LD39030 데이터시트, 핀배열, 회로
LD39030
300 mA very low quiescent current linear regulator IC
Datasheet - production data
Features
Input voltage from 1.5 to 5.5 V
Ultra low dropout voltage (300 mV typ. at
300 mA load)
Very low quiescent current (20 µA typ at no
load, 0.03 µA typ in off mode)
Output voltage tolerance: ±0.5 % (A version)
or ± 2.0 % @ 25 °C (standard version)
300 mA guaranteed output current
High PSRR (80 dB@1 kHz, 50 db@100
kHz)
Wide range of output voltages available on
request: from 0.8 V up to 5.0 V in 50 mV
step
Logic-controlled electronic shutdown
Internal soft-start
Optional output voltage discharge feature
Compatible with ceramic capacitor
COUT = 0.47 µF
Internal constant current and thermal
protections
Available in DFN4 1x1
Operating temperature range: -40 °C to
125 °C
Applications
Mobile phones
Tablets
Digital still cameras (DSC)
Cordless phones and similar battery-
powered systems
Portable media players
Description
The LD39030 high accuracy voltage regulator
provides 300 mA of maximum current from an
input voltage ranging from 1.5 V to 5.5 V, with a
typical dropout voltage of 300 mV.
It is available in DFN4 1x1 package, allowing the
maximum space saving.
The device is stabilized with a ceramic capacitor
on the output. The ultra low drop voltage, low
quiescent current and low noise features,
together with the internal soft-start circuit, make
the LD39030 suitable for low power battery-
operated applications.
An enable logic control function puts the
LD39030 in shutdown mode allowing a total
current consumption lower than 0.1 µA. Constant
current and thermal protection are provided.
November 2015
DocID028649 Rev 1
This is information on a product in full production.
1/21
www.st.com




LD39030 pdf, 반도체, 판매, 대치품
Pin configuration
2 Pin configuration
Figure 2: Pin connection (top view)
LD39030
Pin n° DFN4 1x1
1
2
3
4
Thermal pad
Symbol
OUT
GND
EN
IN
GND
Table 1: Pin description
Function
Output voltage
Common ground
Enable pin logic input: Low = shutdown, High = active
Input voltage
Connect to GND on the PCB
4/21 DocID028649 Rev 1

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LD39030 전자부품, 판매, 대치품
LD39030
Electrical characteristics
5 Electrical characteristics
TJ = 25 °C, VIN = VOUT(NOM) + 1 V , CIN = COUT = 1 µF, IOUT = 1 mA, VEN = VIN, unless
otherwise specified.
Symbol
VIN
Table 5: Electrical characteristics
Parameter
Test conditions
Operating input voltage
Min. Typ. Max.
1.5 5.5
Unit
V
VOUT
VOUT accuracy
(LD39030T,
LD39030DT)
VOUT
VOUT accuracy
(LD39030AT,
LD39030ADT)
VOUT Static line regulation(1)
VOUT Static load regulation
VDROP Dropout voltage
eN Output noise voltage
IOUT = 1 mA, TJ = 25 °C
IOUT = 1 mA,
-40 °C < TJ < 125 °C
IOUT = 1 mA, TJ = 25 °C
IOUT = 1 mA,
-40 °C < TJ < 125 °C
VOUT(NOM) + 1 V ≤ VIN ≤ 5.5 V,
IOUT = 10 mA
-40 °C < TJ < 125 °C
IOUT = 0 mA to 300 mA
-40 °C < TJ < 125 °C
IOUT = 30 mA,VOUT = 2.8 V
IOUT = 300 mA, VOUT = 2.8 V
-40 °C < TJ < 125 °C
10 Hz to 100 kHz, IOUT = 10
mA
-2 2 %
-3 3 %
-0.5 0.5 %
-1.5 1.5 %
0.02
0.2
%/V
18 mV
0.01 %/mA
35
mV
330
45 µVRMS
SVR
IQ
IStandby
ISC
Supply voltage rejection
Quiescent current
Standby Current
Short circuit current
VIN = VOUT(NOM)+ 1 V +/- VRIPPLE
VRIPPLE = 0.2 V
Freq .=1 kHz
IOUT = 30 mA
VIN = VOUT(NOM)+ 1 V +/- VRIPPLE
VRIPPLE = 0.2 V
Freq. = 100 kHz
IOUT = 30 mA
IOUT = 0 mA
IOUT = 300 mA
VIN input current in OFF
MODE: VEN = GND
RL = 0
80
dB
55
20 40
130
0.03 1
480
µA
µA
mA
RON Output voltage
discharge MOSFET
(only on LD39030DT,
LD39030ADT)
100
Enable input logic low
VEN
VIN = 1.5 V to 5.5 V
-40 °C < TJ < 125 °C
Enable input logic high
VIN = 1.5 V to 5.5 V
-40 °C < TJ < 125 °C
IEN Enable pin input current VEN = VIN
0.4
V
1
100 nA
DocID028649 Rev 1
7/21

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LD39030

300mA very low quiescent current linear regulator IC

STMicroelectronics
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