ap3406amm-adjtrg1 BCD Semiconductor Manufacturing Limited, ap3406amm-adjtrg1 Datasheet - Page 2

• Manufacturer Part Number: ap3406amm-adjtrg1
• Description: 1.1mhz, 800ma Synchronous Dc-dc Buck Converter
• Manufacturer: BCD Semiconductor Manufacturing Limited

Pin Configuration
Pin Description
Mar. 2009 Rev. 1. 1
1.1MHz, 800mA SYNCHRONOUS DC-DC BUCK CONVERTER
TSOT-23-5
GND
SW
EN
1
2
3
4
5
Pin Number
1
2
3
MSOP-10
2, 4, 6, 7
KT Package
TSOT-23-5
10
8
3
9
1
5
Pin Name
Figure 2. Pin Configuration of AP3406A (Top View)
PGND
GND
VIN
SW
EN
NC
FB
5
4
FB
VIN
Control input pin. Forcing this pin above 1.5V enables the IC.
Forcing this pin below 0.6V shuts down the IC. When the IC is in
shutdown mode, all functions are disabled to decrease the supply
current below 1µA
Ground pin
Power switch output pin. Inductor connection to drain of the
internal PFET and NFET switches
Supply input pin. Bypass to GND with a 10µF or greater ceramic
capacitor
Feedback pin. Connect it with an external resistor divider network
to program the system output voltage
No connection
Power ground pin
2
GND
VIN
NC
NC
FB
1
2
3
4
5
BCD Semiconductor Manufacturing Limited
Function
MM Package
Preliminary Datasheet
MSOP-10
AP3406A
10
8
9
7
6
EN
PGND
NC
NC
SW