LP3927ILQX-AP National Semiconductor, LP3927ILQX-AP Datasheet - Page 13
![IC PWR MNGMNT CELL/PCS 28-LLP](/photos/6/56/65646/14-24-llp_sml.jpg)
LP3927ILQX-AP
Manufacturer Part Number
LP3927ILQX-AP
Description
IC PWR MNGMNT CELL/PCS 28-LLP
Manufacturer
National Semiconductor
Datasheet
1.LP3927ILQX-AP.pdf
(17 pages)
Specifications of LP3927ILQX-AP
Applications
Handheld/Mobile Devices
Current - Supply
5µA
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-LLP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Timing Diagrams
(Continued)
VEXT Detect Start-Up/Shut Down
20037927
Note: Diagram indicates Open Drain IRQ tied to V
.
DD
*** = Internal signal
1. VEXT goes active low.
2. VEXT 32 msec de-bounce period.
3. Delay between LDO1 and LDO2 enables.
4. Both LDO1 and LDO2 outputs reach 95% of respective output voltage, start Reset timer.
5. Reset delay.
6. Period between Reset and PS_HOLD going high is not relevant since VEXT is low
7. PS_HOLD goes low but LDOs continue to run since VEXT is low.
8. PS_HOLD is low and VEXT goes high, RST pin goes low.
9. Delay between RST going low and LDO2 disabled.
10. Delay between LDO2 and LDO1 disabled.
13
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