PAM2316
2.5MHz,Fast Transient 2A Step-Down Converter
Features
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2A Maximum Output Current
Tiny 1.0uH Chip Inductor
Excellent Transient Response
Input Voltage: 2.7V to 5.5V
Ultra-small, Low Profile 8-pin 2mm x 2mm
TDFN Package
Fixed or Adjustable Output Voltage
- Adjustable Output Voltage: 1.0V to 3.3V
High Efficiency with 2.5MHz Switching
Frequency
55uA No Load Quiescent Current
100% Duty Cycle Low-Dropout Operation
Internal Soft Start
Over-Temperature and Current Limit
Protection
<
1uA Shutdown Current
-40° to 85° Temperature Range
C
C
Pb-Free/Halogen Free Package
RoHS/REACH Compliant
General Description
The PAM2316 is a 2A step-down sync converter.
The 2.5MHz switching frequency enables the use
of small external components. The ultra-small
2mm x 2mm footprint and high efficiency make the
PA M 2 3 1 6 a n i d e a l c h o i c e f o r p o r t a b l e
applications.
The PAM2316 delivers 2 A maximum output
current while consuming only 55uA no
-
load
quiescent current. Low R
DS(ON)
integrated
MOSFETs and 100
%
duty cycle operation make
the PAM2316 the ideal choice for high output
voltage, high current applications which require a
low dropout threshold
.
The PAM 23 16 p r ov id es ex c el le nt tr an s ie nt
r es p o n s e a n d o u tp ut a c c ur a c y a c r o s s th e
operating range.
T h e PA M 2 3 1 6 m a i n t a i n s h i g h e f f i c i e n c y
th r ou g h o u t th e l o a d r a n g e . Th e PA M 2 3 1 6
automatically optimizes efficiency during light
l oa d m o de ( P S M) an d m a i nt a i n s c o n s ta n t
frequency and low output ripple during PWM
mode.
Over-temperature and short circuit protection
safeguard the PAM2316 and system components
from damage.
The PAM2316 is available in a Pb-free, ultra-
small, low profile, 8-pin 2mm x 2mm TDFN
package. The product is rated over a temperature
range of -40° to 85°
C
C.
Applications
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Cellular Phone
Digital Cameras
Hard Disk Drives
MP3 Players
PDAs and Handheld Computers
Portable Media Players
USB Devices
Wireless Network Cards
Typical Application
Vin=3.3V
PVIN
EN
C1
10µF
C2
1.0µF
L1
SW
SW
FB
PGND
Vout=1.2V
R1
150k
C4
100pF
C3
10µF
R2
150k
1.0uH
VIN
AGND
Vout=0.6* (1+R1/R2)
Power Analog Microelectronics
,
Inc
www.poweranalog.com
12/2011 Rev1.1
1
PAM [ POWER ANALOG MICOELECTRONICS ]
