Features

Applications

General Description

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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

1uA Shutdown Current

-40°C to 85°C Temperature Range

Pb-Free/Halogen Free Package

RoHS/REACH Compliant

Cellular Phone

Digital Cameras

Hard Disk Drives

MP3 Players

PDAs and Handheld Computers

Portable Media Players

USB Devices

Wireless Network Cards

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

A

maximum

output

current while

consuming

only

55uA

no load

quiesce nt

cu rre nt.

Lo w

R

inte grate d

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

T h e PAM 2 3 1 6 p r o v id e s e x c e l le n t t r a n s ie n t

r e s p o n s e a n d o u t p u t a c c u r a c y a c r o s s t h 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

t h r o u g h o u t t h e l o a d r a n g e . T h e PA M 2 3 1 6

automatically optimizes efficiency during light

l o a d m o d e ( P S M ) a n d m a i n t a i n s c o n s t a 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°C to 85°C.

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55uA No Load Quiescent Current

100% Duty Cycle Low-Dropout Operation

Internal Soft Start

Over-Temperature and Current Limit

Protection

<

-

%

.

2

DS( ON)

Typical Application

1

www.poweranalog.com

PAM2316

2.5MHz,Fast Transient 2A Step-Down Converter

12/2011 Rev1.1

,

Power Analog Microelectronics Inc

C2

1.0µF

PVIN

EN

VIN

AGND

PGND

FB

SW

SW

Vin=3.3V

L1

1.0uH

C1

10µF

C3

10µF

Vout=1.2V

C4

100pF

R1

150k

Vout=0.6* (1+R1/R2)

R2

150k