AP1605 datasheet, PDF - EEWORLD Datasheet

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AP1605: Description3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8; CategoryPower/power management; File Size168KB，6 Pages; ManufacturerAnachip; Websitehttp://www.anachip.com/

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AP1605 Overview

3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8

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AP1605

PWM/PFM Dual-mode Step-Down Switching Regulator

Features

- Low current consumption:

In operation: 100µA max.

Power off: 2µA max.

- Input voltage: 2.5V to 7V.

Adjustable version (+2.5%)

- PWM/PFM dual Mode

- Oscillation frequency: 300KHz (Typ.)

- With a power-off function.

- Built-in internal SW P-channel MOS

- SOP-8L/TSSOP-8L Package.

General Description

AP1605 consists of CMOS step-down switching

regulator with PWM/PFM dual mode control. These

devices include a reference voltage source, oscillation

circuit, error amplifier, internal PMOS and etc.

AP1605 provides low-ripple power, high efficiency,

and

excellent

transient

characteristics.

The

PWM/PFM control circuit is able to very the duty ratio

linearly 0%~0.25% (PFM) and 25%~100% (PWM).

With the addition of an internal P-channel Power MOS,

a coil, capacitors, and a diode connected externally,

these ICs can function as step-down switching

regulators. They serve as ideal power supply units for

portable devices when coupled with the SOP–8L

mini-package, providing such outstanding features as

low current consumption. Since this converter can

accommodate an input voltage of up to 7V, it is also

ideal when operating via an AC adapter.

Applications

- On-board power supplies of battery devices for

portable telephones, electronic notebooks, PDA,

and other hand-held sets.

- Power supplies for audio equipment, including

portable CD players and headphone stereo

equipment.

- Fixed voltage power supply for cameras, video

equipment and communications equipment.

- Power supplies for microcomputers.

- Conversion from four Ni-H or Ni-Cd cells or two

lithium-ion cells to 3.3V/3V.

- Conversion of AC adapter input to 5V/3V.

Pin Assignments

AP1605

6 SW

5 SW

8 Vss

7 Vss

Pin Descriptions

Pin No.

Name SOP TSSOP

2、3

Description

Feedback pin

Chip Enable:

H: Enable

L: Disable

IC signal power supply pin,

add a 10Ω resistor to PVcc

and a 0.1µF capacitor to

GND.

IC power supply pin

Switch Pin. Connect external

inductor/diode here.

Minimize trace area at this

pin to reduce EMI.

GND Pin

Vcc 3

PVcc 4

Vcc

PVcc

5、6

7、8

6、7

SOP-8L

Vss

AP1605

PVcc

Vcc

Vss

TSSOP-8L

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. 1.1 Jan 18, 2005

1/6

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Description	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8	Surface Mount Transient Voltage Suppressors	3 A DUAL SWITCHING CONTROLLER, 380 kHz SWITCHING FREQ-MAX, PDSO8
Is it Rohs certified?	-	incompatible	incompatible	conform to	conform to	incompatible	incompatible	-	conform to
package instruction	-	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	TSSOP, TSSOP8,.25	TSSOP, TSSOP8,.25	-	TSSOP, TSSOP8,.25
Reach Compliance Code	-	unknow	unknow	unknow	unknown	unknown	unknown	-	unknown
control mode	-	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	-	VOLTAGE-MODE
JESD-30 code	-	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	-	R-PDSO-G8
Number of terminals	-	8	8	8	8	8	8	-	8
Maximum operating temperature	-	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	-	85 °C
Minimum operating temperature	-	-20 °C	-20 °C	-20 °C	-20 °C	-20 °C	-20 °C	-	-20 °C
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY
encapsulated code	-	SOP	SOP	SOP	SOP	TSSOP	TSSOP	-	TSSOP
Encapsulate equivalent code	-	SOP8,.25	SOP8,.25	SOP8,.25	SOP8,.25	TSSOP8,.25	TSSOP8,.25	-	TSSOP8,.25
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-	RECTANGULAR
Package form	-	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	-	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Certification status	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-	Not Qualified
surface mount	-	YES	YES	YES	YES	YES	YES	-	YES
Maximum switching frequency	-	310 kHz	310 kHz	310 kHz	310 kHz	310 kHz	310 kHz	-	310 kHz
technology	-	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	-	CMOS
Temperature level	-	OTHER	OTHER	OTHER	OTHER	OTHER	OTHER	-	OTHER
Terminal form	-	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	-	GULL WING
Terminal pitch	-	1.27 mm	1.27 mm	1.27 mm	1.27 mm	0.635 mm	0.635 mm	-	0.635 mm
Terminal location	-	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	-	DUAL
Maker	-	-	-	Anachip	Anachip	Anachip	Anachip	-	Anachip

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