2A同步整流升压IC-PS7616

锂电池

PS7616

深圳市百盛电子

郑生１８９４８３１４９４２

.

Description The PS7616 is a high efficiency, fixed frequency

1MHz, current mode PWM boost DC/DC converter

which could operate battery such as input voltage down to 2.5V. The converter output voltage can be adjusted to a maximum of 5.25V by an external resistor divider. Besides the converter includes a 0.05Ω N-channel MOSFET switch and 0.08Ω P-channel synchronous rectifier. So no external Schottky diode is required and could get better efficiency near 93%.

The converter is based on a fixed frequency, current mode, pulse-width-modulation PWM controller that goes automatically into PSM mode at light load. When converter operation into discontinuous mode, the internal anti-ringing switch will reduce interference and radiated electromagnetic energy. The PS7616 is available in a space-saving SOP-8 (Exposed Pad) package for portable application.

Features

High Efficiency up to 93%

Low RDS(ON) Integrated Power MOSFET NMOS 50mΩ/PMOS 80mΩ

Wide Input Voltage Range: 2.5V to 5.5V Fixed 1MHz Switching Frequency

Low-Power Mode for Light Load Conditions ±2.0% Voltage Reference Accuracy Adjustable Current Limit

PMOS Current Limit for Short Circuit Protection Low Quiescent Current

Output Ripple under 200mV (Scope Full Bandwidth)

Input Under Voltage Lockout Internal Compensation Function Built-In Soft Start Function

Over-Temperature Protection with Auto Recovery Output Overvoltage Protection

SOP-8 (Exposed Pad) Pb-Free Package

Applications

Portable Power Bank Wireless Equipment Handheld Instrument GPS Receiver

INVOUT

FBGND

9PGND

86PGLXENILIM

ure 1. Pin Assignment of PS7616Fig

Pin Description

锂电池

PS7616

Typical Application Circuit

L1

VIN

VOUT5V/2A

Figure 2. Typical Application Circuit

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Block Diagram

OUT

Figure 3. Block Diagram of PS7616

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Absolute Maximum Ratings (Note 1)

● Supply Voltage VIN ----------------------------------------------------------------------------------------------- -0.3V to +6.5V ● LX Voltage VLX ---------------------------------------------------------------------------------------------------- -0.3V to +6.5V ● All Other Pins Voltage ------------------------------------------------------------------------------------------- -0.3V to +6.5V ● Maximum Junction Temperature (TJ) ------------------------------------------------------------------------ +150°C ● Storage Temperature (TS) -------------------------------------------------------------------------------------- -65°C to +150°C ● Lead Temperature (Soldering, 10sec.) --------------------------------------------------------------------- +260°C ● Package Thermal Resistance, (θJA)

SOP-8 (Exposed Pad) ------------------------------------------------------------------------------ 60°C/W

● Package Thermal Resistance, (θJC)

SOP-8 (Exposed Pad) ------------------------------------------------------------------------------ 15°C/W

Note 1：Stresses beyond this listed under “Absolute Maximum Ratings" may cause permanent damage to the device.

Recommended Operating Conditions

● Supply Voltage VIN ----------------------------------------------------------------------------------------------- +2.5V to +5.5V ● Output Voltage Range ------------------------------------------------------------------------------------------- up to +5.25V ● Operation Temperature Range -------------------------------------------------------------------------------- -40°C to +85°C

锂电池

PS7616

Electrical Characteristics

锂电池

PS7616

Outline Information

SOP-8 (Exposed Pad) Package (Unit: mm)

Note：Followed From JEDEC MO-012-E.

Carrier Dimensions

Life Support Policy

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