NCP1411

http://onsemi.com

2

Figure 1. Typical Operating Circuit

FB

LBI/EN

LBO

REF

OUT

LX

GND

BAT

4

3

2

1

5

6

7

8

150 nF

33

mF

NCP1411

+

350 k

10

mF

22

mH

220 pF

150 pF

200 k

120 nF

Output 1.5 to 5.5 V

Up to 250 mA at

3.3 V Output

and 2.5 V Input

Input

1 V to

Low Battery

Sense Input

Shutdown

Open Drain

Input

Low Battery

Open Drain

Output

PIN FUNCTION DESCRIPTION

Pin #

Symbol

Pin Description

1

FB

Output Voltage Feedback Input.

2

LBI/EN

Low−Battery Detector Input and IC Enable.

3

LBO

shutdown.

4

REF

1.190 V Reference Voltage Output, bypassing with 150 nF capacitor if this pin is not loaded, bypassing with 1.0

mF

5

BAT

Battery input connection for internal Ring−Killer.

6

GND

Ground.

7

LX

N−Channel and P−Channel Power MOSFET Drain Connection.

8

OUT

Power Output. OUT also provides bootstrapped power to the device.

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Device Power Supply (Pin 8)

−0.3 to 6.0

V

Input/Output Pins (Pins 1−5, Pin 7)

−0.3 to 6.0

V

Thermal Characteristics − Micro8 Plastic Package

Thermal Resistance, Junction−to−Air

520

240

mW

°C/W

Operating Junction Temperature Range

−40 to +150

°C

Operating Ambient Temperature Range

−40 to +85

°C

Storage Temperature Range

−55 to +150

°C

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit

values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,

damage may occur and reliability may be affected.

1. This device contains ESD protection and exceeds the following tests:

Human Body Model (HBM)

"2.0 kV per JEDEC standard: JESD22−A114.

Machine Model (MM)

"200 V per JEDEC standard: JESD22−A115.

2. The maximum package power dissipation limit must not be exceeded.

PD +

TJ(max) * TA

R

qJA

3. Latchup Current Maximum Rating:

"150 mA per JEDEC standard: JESD78.

4. Moisture Sensitivity Level: MSL 1 per IPC/JEDEC standard: J−STD−020A.