LD2985BM33R Datasheet PDF - STMicroelectronics
| Part Number | LD2985BM33R | |
| Description | Very low drop and low noise voltage regulator | |
| Manufacturers | STMicroelectronics | |
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LD2985
Very low drop and low noise voltage regulator with inhibit function
SOT23-5L
Features
• Very low dropout voltage (280 mV at 150 mA
and 7 mV at 1 mA load)
• Very low quiescent current (2 mA typ. at 150
mA load and 80 µA at no load)
• Output current up to 150 mA
• Logic controlled electronic shutdown
• Output voltage of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
• Internal current and thermal limit
• Low output noise voltage 30 mVrms
• Small package SOT23-5L
• Temperature range: - 40°C to 125 °C
Description
The LD2985 is a 150 mA fixed output voltage
regulator. The ultra low drop voltage and the low
quiescent current make them particularly suitable
for low noise, low power applications, and in
battery powered systems. In sleep mode
quiescent current is less than 1 µA when INHIBIT
pin is pulled low. Shutdown logic control function
is available on pin 3 (TTL compatible). This
means that when the device is used as local
regulator, it is possible to put a part of the board in
standby, decreasing the total power consumption.
An external capacitor, CBYP = 10 nF, connected
between bypass pin and GND reduces the noise
Datasheet - production data
to 30 µVrms. Typical application are in cellular
phone, palmtop laptop computer, personal digital
assistant (PDA), personal stereo, camcorder and
camera.
Table 1. Device summary
Order codes
Output voltages
LD2985BM18R
1.8 V
LD2985BM25R
LD2985BM28R
2.5 V
2.8 V
LD2985BM30R
3.0 V
LD2985BM31R
3.1 V
LD2985BM33R
3.3 V
LD2985BM50R
5.0 V
November 2013
This is information on a product in full production.
DocID8189 Rev 13
1/18
www.st.com
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LD2985
3 Maximum ratings
Maximum ratings
Note:
Symbol
VI
VINH
IO
PD
TSTG
TOP
Table 4. Absolute maximum ratings
Parameter
Value
DC input voltage
16
INHIBIT input voltage
16
Output current
Internally limited
Power dissipation
Storage temperature range
Internally limited
-65 to 150
Operating junction temperature range
-40 to 125
Unit
V
V
°C
°C
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
DocID8189 Rev 13
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LD2985BM33R electronic component. |
| Information | Total 18 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LD2985BM33R.PDF Datasheet ] | |
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