AP1516-SL-A

AP1516-SL-A Datasheet

AP1516

Part	Datasheet
AP1516-SL-A	AP1516-SL-A (pdf)

Related Parts	Information
AP1516-33SL-A	AP1516-33SL-A

PDF Datasheet Preview
Not Recommended for New Design 150KHz, 3A PWM Buck DC/DC Converter + 1A Ultra Low Drop Regulator AP1516 - Features * Channel 1 simple switch - Adjustable version output voltage range, 1.23V to 18V+4% & Fixed 3.3V version - 150KHz +20% fixed switching frequency - Voltage mode non-synchronous PWM control - ON/OFF shutdown control input - Operating voltage can be up to 20V - Output load current 3A - Low power standby mode * Channel 2 ultra low drop regulator - Adjustable output voltage - 0.6V Maximum Dropout voltage at 1.0A Load current - Fast transient response - Good noise rejection * Channel 1 & Channel 2 - SOP-16L Pb-free package - Built-in switching transistor on chip - Thermal-shutdown and current-limit protection of each channel - Applications - PC Motherboard - LCD Monitor - Graphic Card - DVD-Video Player - NIC/Switch - Telecom Equipment - ADSL Modem - Printer and other Peripheral Equipment - Pin Assignments Top View GND 1 GND 2 VOUT1 3 FB1 4 SD1 5 VIN2 6 VOUT2 7 VOUT2 8 SOP-16L 16 GND 15 GND 14 VIN1 13 VB 12 VSENSE2 11 FB2 10 VOUT2 9 VOUT2 - General Description The Channel 1 is a step-down DC/DC converter, and own the ability of driving a 3A load without additional transistor component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes feedback control have good line and load regulation without external design. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch. If current limit function occurred and VFB is down to 0.5V below, the switching frequency will be reduced. The switching frequency of 150KHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed +4% tolerance on output voltage under specified input voltage and output load conditions, and +20% on the oscillator frequency. The channel 2 is a 1A regulator with extremely low dropout voltage. This product is specifically designed to provide well regulated supply for applications requiring 2.8V or lower voltages from 3.3V power supplies where high efficiency of a switcher can be achieved without the cost and complexity associated with switching regulator. - Pin Descriptions Name VIN1 VB VIN2 VOUT1 VOUT2 FB1 FB2 SD1 VSENSE2 GND Operating voltage input of channel 1 Channel 2 bias voltage Main power source of channel 2 Channel 1 switching output Channel 2 output Output1 voltage feedback control Output2 voltage feedback control Channel 1 ON/OFF shutdown Channel 2 output sense pin Ground 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. Not Recommended for New Design 150KHz, 3A PWM Buck DC/DC Converter + 1A Ultra Low Drop Regulator - Ordering Information AP1516 XX X Output version Ch1 Blank Adjustable -33 3.3V Package S SOP-16L Packing Blank Tube A Taping AP1516 - Block Diagram VIN1 200mV 220mV Current Source bias 1.235V Reference 2.5V Regulator Start up + Com_p Comp + Frequecy _Amp compen- sation Comp + Pre-driver 3A Switch 150kHz OSC. Thermal Limit VOUT1 GND VIN2 CURRENT LIMIT 1.25V + VOUT2 VSENSE2 THERMAL SHUTDOWN Anachip Corp. Not Recommended for New Design 150KHz, 3A PWM Buck DC/DC Converter + 1A Ultra Low Drop Regulator AP1516 - Absolute Maximum Ratings VIN1, B VIN2 VSD VFB1 VOUT1 PD TST TOP VOP Parameter Supply Voltage Supply Voltage ON/OFF Pin Input Voltage Feedback Pin Voltage Output Voltage to Ground Power Dissipation Storage Temperature Operating Temperature Operating Voltage

PDF Datasheet Preview

Not Recommended for New Design
150KHz, 3A PWM Buck DC/DC Converter + 1A Ultra Low Drop Regulator

AP1516
- Features
* Channel 1 simple switch - Adjustable version output voltage range, 1.23V to
18V+4% & Fixed 3.3V version - 150KHz +20% fixed switching frequency - Voltage mode non-synchronous PWM control - ON/OFF shutdown control input - Operating voltage can be up to 20V - Output load current 3A - Low power standby mode * Channel 2 ultra low drop regulator - Adjustable output voltage - 0.6V Maximum Dropout voltage at 1.0A Load current - Fast transient response - Good noise rejection * Channel 1 & Channel 2 - SOP-16L Pb-free package - Built-in switching transistor on chip - Thermal-shutdown and current-limit protection of each channel
- Applications
- PC Motherboard - LCD Monitor - Graphic Card - DVD-Video Player - NIC/Switch - Telecom Equipment - ADSL Modem - Printer and other Peripheral Equipment
- Pin Assignments

Top View

GND 1

GND 2 VOUT1 3

FB1 4 SD1 5 VIN2 6 VOUT2 7 VOUT2 8

SOP-16L
16 GND 15 GND
14 VIN1 13 VB 12 VSENSE2 11 FB2
10 VOUT2 9 VOUT2
- General Description

The Channel 1 is a step-down DC/DC converter, and own the ability of driving a 3A load without additional transistor component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes feedback control have good line and load regulation without external design. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch. If current limit function occurred and VFB is down to 0.5V below, the switching frequency will be reduced. The switching frequency of 150KHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed +4% tolerance on output voltage under specified input voltage and output load conditions, and +20% on the oscillator frequency. The channel 2 is a 1A regulator with extremely low dropout voltage. This product is specifically designed to provide well regulated supply for applications requiring 2.8V or lower voltages from 3.3V power supplies where high efficiency of a switcher can be achieved without the cost and complexity associated with switching regulator.
- Pin Descriptions

Name

VIN1 VB VIN2 VOUT1 VOUT2 FB1 FB2 SD1 VSENSE2 GND

Operating voltage input of channel 1 Channel 2 bias voltage Main power source of channel 2 Channel 1 switching output Channel 2 output Output1 voltage feedback control Output2 voltage feedback control Channel 1 ON/OFF shutdown Channel 2 output sense pin Ground

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.

Not Recommended for New Design
150KHz, 3A PWM Buck DC/DC Converter + 1A Ultra Low Drop Regulator
- Ordering Information

AP1516 XX X

Output version

Ch1 Blank Adjustable -33 3.3V

Package S SOP-16L

Packing

Blank Tube A Taping

AP1516
- Block Diagram

VIN1 200mV 220mV

Current Source
bias
1.235V Reference
2.5V Regulator

Start up
+ Com_p

Comp +

Frequecy
_Amp
compen-
sation

Comp +

Pre-driver
3A Switch
150kHz OSC.

Thermal Limit

VOUT1 GND

VIN2

CURRENT LIMIT
1.25V +

VOUT2 VSENSE2

THERMAL

SHUTDOWN

Anachip Corp.

Not Recommended for New Design
150KHz, 3A PWM Buck DC/DC Converter + 1A Ultra Low Drop Regulator

AP1516
- Absolute Maximum Ratings

VIN1, B VIN2 VSD VFB1 VOUT1 PD TST TOP VOP

Parameter

Supply Voltage Supply Voltage ON/OFF Pin Input Voltage Feedback Pin Voltage Output Voltage to Ground Power Dissipation Storage Temperature Operating Temperature Operating Voltage

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AP1516-SL-A Datasheet file may be downloaded here without warranties.

Datasheet ID: AP1516-SL-A 509811