W995
1230-1858 rev. 1
APPENDIX
Components - N2200, N2205, N2206, N2212, N2213, N2410
A
PPE
N
D
IX
PIN ASSIGNMENTS
DRV PACKAGE
MODE
FB
GND
SW
EN
VIN
1
2
3
6
5
4
r
Pow
e
PAD
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
V
IN
5
PWR
VIN power supply pin.
GND
6
PWR
GND supply pin
This is the enable pin of the device. Pulling this pin to low forces the device into shutdown mode. Pulling
EN
4
I
this pin to high enables the device. This pin must be terminated.
This is the switch pin and is connected to the internal MOSFET switches. Connect the external inductor
SW
1
OUT
between this terminal and the output capacitor.
Feedback Pin for the internal regulation loop. Connect the external resistor divider to this pin. In case of
FB
3
I
fixed output voltage option, connect this pin directly to the output capacitor
MODE pin = high forces the device to operate in fixed-frequency PWM mode. Mode pin = low enables
MODE
2
I
the Power Save Mode with automatic transition from PFM mode to fixed-frequency PWM mode.
PIN CONFIGURATIONS
Mark S ide
Bump Side
4
1
3
2
4
1
3
2
PIN DESCRIPTION
Pin No.
Symbol
Desc ription
1 V
DD
Input
Pin
2 CE
Chip Enable Pin
3 GND
Ground
Pin
4 V
OUT
Output Pin
Top View
6
5
4
1 2
3
Bottom View
4
5
6
3
2
1
Pin No.
Symbol
Description
V
1
OUT2
Output
Pin
2
V
2
DD
Input
Pin
V
3
OUT1
Output
Pin
1
GND Ground
Pin
1
n
i
P
e
l
b
a
n
E
p
i
h
C
1
E
C
5
CE2
Chip Enable Pin 2
* Tab in the parts have GND level.
(They are connected to the reverse side of this IC.)
Do not connect to other wires or land patterns.
6
4
Block Diagram
V
DD
GND
V
OUT
CE
Vref
Current Limit
Pin Description
Pin No.
Symbol
Description
1 V
OUT
Output Pin
2 GND
Ground
Pin
3
CE
Chip Enable Pin (“H” Active)
4 V
DD
Input
Pin
Tab is GND level. (They are connected to the back side of the IC.)
Do not connect to other wires or land patterns.
3
4
2
1
GND
OUT
1
+
IN
GND
LX
MAX8640Y
MAX8640Z
TOP VIEW
2
3
6
5
4
SHDN
μ
DFN
1.5mm x 1.0mm
Pin Configuration
TQFN (4mm x 4mm)
TOP VIEW
MAX7327
19
20
21
22
1
2
3
4
5
6
18
17
16
15
14
13
23
24
12
11
10
9
8
7
SCL
V+
SDA
INT
AD2
O0
+
O1
P2
P3
P4
P5
AD0
O15
O13
O12
O11
RST
O10
O8
O9
GND
O6
O7
O14
EXPOSED PADDLE
Pin Configurations
N2200 IC Vreg 1213-9811
N2410 IC IF 3.5x3.5x0.8 thin QFN 1200-1951
N2213 Step Down Converter 500mA 1208-4678
N2206 LDO Dual 2.8 V & 1.8 V 1201-6517
N2205 IC Vreg 1201-9680
N2212 IC Vreg 1215-2684
SEMC Troubleshooting Manual
108
(125)
