NCP336, NCP337
3 A Ultra-Small Controlled
Load Switch with
Auto-Discharge Path
Description
The NCP336 and NCP337 are very low Ron MOSFET controlled
by external logic pin, allowing optimization of battery life, and
portable device autonomy.
Indeed, thanks to a current consumption optimization with PMOS
structure, leakage currents are eliminated by isolating connected IC on
the battery when not used.
Output discharge path is also embedded to eliminate residual
voltages on the output rail for the NCP337 part only.
Proposed in a wide input voltage range from 1.2 V to 5.5 V, in a
small 1 x 1.5 mm WLCSP6, pitch 0.5 mm.
Features
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WLCSP6
FC SUFFIX
CASE 567FH
PIN CONNECTIONS
1
A
OUT
2
IN
•
•
•
•
•
•
•
1.2 V
−
5.5 V Operating Range
21 mW P MOSFET at 4.5 V
DC Current up to 3 A
Output Auto−Discharge
Active High EN Pin
WLCSP6 1 x 1.5 mm
This Device is Pb−Free, Halogen Free/BFR Free and is RoHS
Compliant
Mobile Phones
Tablets
Digital Cameras
GPS
Portable Devices
VCC
V+
B
OUT
IN
C
GND
EN
(Top View)
Applications
•
•
•
•
•
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
LS
NCP336 or NCP337
SMPS
DCDC Converter
LDO
1μF
ENx
or
A2
B2
C2
ENy
EN
GND
IN
IN
OUT
OUT
A1
B1
100n
Platform IC’n
C1
0
LS
Platform IC’n+1
Figure 1. Typical Application Circuit
©
Semiconductor Components Industries, LLC, 2012
September, 2012
−
Rev. 2
1
Publication Order Number:
NCP336/D
NCP336, NCP337
Table 1. PIN FUNCTION DESCRIPTION
Pin Name
IN
GND
EN
OUT
Pin Number
A2, B2
C1
C2
A1, B1
Type
POWER
POWER
INPUT
OUTPUT
Description
Load−switch input voltage; connect a 1
mF
or greater ceramic capacitor from IN to GND
as close as possible to the IC.
Ground connection.
Enable input, logic high turns on power switch.
Load−switch output; connect a 1
mF
ceramic capacitor from OUT to GND as close as
possible to the IC is recommended.
Figure 2. Block Diagram
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2
NCP336, NCP337
Table 2. MAXIMUM RATINGS
Rating
IN, OUT, EN, Pins: (Note 1)
From IN to OUT Pins: Input/Output (Note 1)
Maximum Junction Temperature
Storage Temperature Range
Moisture Sensitivity (Note 2)
Symbol
V
EN,
V
IN,
V
OUT
V
IN,
V
OUT
T
J
T
STG
MSL
Value
−0.3
to + 7.0
0 to + 7.0
−40
to + 125
−40
to + 150
Level 1
Unit
V
V
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 3. OPERATING CONDITIONS
Symbol
V
IN
V
EN
T
A
T
J
C
IN
C
OUT
R
qJA
I
OUT
P
D
1.
2.
3.
4.
Parameter
Operational Power Supply
Enable Voltage
Ambient Temperature Range
Junction Temperature Range
Decoupling input capacitor
Decoupling output capacitor
Thermal Resistance Junction to Air
Maximum DC current
Power Dissipation Rating (Note 4)
T
A
≤
25°C
T
A
= 85°C
WLCSP package
WLCSP package
0.66
0.26
WLCSP package (Note 3)
Conditions
Min
1.2
0
−40
−40
1
1
100
3
25
25
Typ
Max
5.5
5.5
+85
+125
°C
°C
mF
mF
°C/W
A
W
W
Unit
V
According to JEDEC standard JESD22−A108.
Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J−STD−020.
The R
qJA
is dependent of the PCB heat dissipation and thermal via.
The maximum power dissipation (
PD
) is given by the following formula:
P
D
+
T
JMAX
*
T
A
R
qJA
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NCP336, NCP337
Table 4. ELECTRICAL CHARACTERISTIC
Min & Max Limits apply for T
A
between
−40°C
to +85°C for V
IN
between 1.2 V to 5.5 V
(Unless otherwise noted). Typical values are referenced to T
A
= +25°C and V
IN
= 5 V (Unless otherwise noted).
Symbol
POWER SWITCH
R
DSON
Static drain−source
on−state resistance
Vin = 5.5 V
Vin = 4.5 V
Vin = 3.3 V
Vin = 2.5 V
Vin = 1.8 V
Vin = 1.2 V
Rdis
V
IH
V
IL
R
pd
Istd
Iq
TIMINGS
T
EN
T
R
T
ON
T
F
Enable time
Output rise time
ON time (T
EN
+ T
R
)
Output fall time
Vin = 3.6 V
(Note 6)
R
L
= 25
W,
Cout = 1
mF
R
L
= 25
W,
Cout = 1
mF
R
L
= 25
W,
Cout = 1
mF
NCP337. R
L
= 25
W,
Cout = 1
mF
323
810
1130
42
ms
Output discharge path
High−level input voltage
Low−level input voltage
EN pull down resistor
5
EN = low
0.9
0.5
MW
I = 1 A (Note 5)
I = 500 mA (Note 5)
I = 500 mA (Note 5)
I = 500 mA (Note 5)
I = 250 mA (Note 5)
T
A
= 25°C, I = 200 mA
20
21
23
28
40
95
70
22
25
28
35
45
120
90
W
V
mW
Parameter
Conditions
Min
Typ
Max
Unit
QUIESCENT CURRENT
Standby current
Quiescent current
Vin = 4.2 V
Vin = 4.2 V
EN = low, No load
EN = high, No load
1
1
mA
mA
5. Guaranteed by design and characterization
6. Parameters are guaranteed for C
LOAD
and R
LOAD
connected to the OUT pin with respect to the ground
TIMINGS
Vin
EN
Vout
T
EN
T
R
T
ON
T
DIS
T
OFF
T
F
Figure 3. Enable, Rise and Fall Time
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NCP336, NCP337
TYPICAL CHARACTERISTICS
Figure 4. Rdson (mW) vs. Vin (V)
Figure 5. Rdson (mW) vs. Iload (A)
Figure 6. Rdson (mW) vs. Temperature (5C) at 100 mA
Figure 7. Rdson (mW) vs. Temperature (5C) at 3 A
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