AP5100WG-7 Diodes Inc, AP5100WG-7 Datasheet

IC PWM BUCK CM 26SOT

AP5100WG-7

Manufacturer Part Number
AP5100WG-7
Description
IC PWM BUCK CM 26SOT
Manufacturer
Diodes Inc
Datasheet

Specifications of AP5100WG-7

Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
1.7MHz
Duty Cycle
87%
Voltage - Supply
4.75 V ~ 24 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
No
Operating Temperature
-25°C ~ 85°C
Package / Case
SOT-26
Frequency-max
1.7MHz
Mounting Style
SMD/SMT
Duty Cycle (max)
87 %
Efficiency
90 %
Input / Supply Voltage (max)
24 V
Input / Supply Voltage (min)
4.75 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 25 C
Operating Temperature Range
- 25 C to + 85 C
Output Voltage
3.3 V
Supply Current
0.4 mA
Switching Frequency
1.4 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
AP5100WG-7DITR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AP5100WG-7
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
AP5100WG-7
Manufacturer:
DIODES
Quantity:
150
Part Number:
AP5100WG-7
Manufacturer:
DIODES/美台
Quantity:
20 000
Company:
Part Number:
AP5100WG-7
Quantity:
5 000
The AP5100 is a current mode step-down converter with a
built-in power MOSFET to enable smallest solution size
power conversion.
With the low series resistance power switch it enables a
constant output current of up to 1.2A over a wide input supply
range. The load and line regulation has excellent response
time over the operating input voltage and temperature range.
The AP5100 is self protected, through a cycle-by-cycle
current limiting algorithm and an on chip thermal protection.
The AP5100 will provide the voltage conversion with a low
count of widely available standard external components.
The AP5100 is available in SOT26 package.
Features
Description
Notes:
Typical Application Circuit
AP5100
Document number: DS32130 Rev. 2 - 2
V
Load current of up to 1.2A
Internal Power MOSFET
Stable with Low ESR Ceramic Output Capacitors
Up to 90% Efficiency
0.1µA Shutdown Mode
Fixed 1.4MHz Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Resistor divider adjustable Output: 0.81V to 15V
SOT26: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/RoHS Compliant (Note 1)
IN
Figure 1. Efficiency vs. Load Current
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
4.75V to 24V
http://www.diodes.com/products/lead_free.html.
1.2A Step-Down Converter with 1.4MHz Switching
www.diodes.com
OFF
1 of 10
V
ON
IN
Pin Assignments
Applications
C1
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
WLED Drivers
Figure 2. Typical Application Circuit
5
4
EN
IN
GND
BST
AP5100
FB
GND
1
2
3
BST
SW
FB
( Top View )
SOT26
1
6
3
C3
D1
5
7 4
6
. L 1
SW
EN
IN
AP5100
© Diodes Incorporated
R1
R2
November 2010
Frequency
C6
C2
V
OUT

Related parts for AP5100WG-7

AP5100WG-7 Summary of contents

Page 1

... Pin Assignments ( Top View ) 1 BST 2 GND 3 FB SOT26 Applications • Distributed Power Systems • Battery Charger • Pre-Regulator for Linear Regulators • WLED Drivers BST AP5100 OFF GND Figure 2. Typical Application Circuit www.diodes.com AP5100 Frequency OUT November 2010 © Diodes Incorporated ...

Page 2

... BST C3 L1 10nF 10µ AP5100 SW 1N5819HW-7 - Vout 3 GND ohm 200Kohm 1% Figure 4. White LED Driver Application www.diodes.com AP5100 Frequency L1 3.3µ 49.9kohm 100pF C2 22µF R2 6.3V 16.2kohm C2 10µF - Vout 16V Vout November 2010 © Diodes Incorporated OUT LED1 LED 2 LED 3 ...

Page 3

... Switch Output. This is the reference for the floating top gate driver. Functional Block Diagram AP5100 Document number: DS32130 Rev 1.2A Step-Down Converter with 1.4MHz Switching Description range from 0.1uF to 1uF. BST Figure 5. Functional Block Diagram www.diodes.com AP5100 Frequency . IN November 2010 © Diodes Incorporated ...

Page 4

... Min Typ. Max Unit 0.790 0.810 0.830 V 0.1 µA Ω 0.35 10 µA 2.4 A 1.1 1.4 1.7 MHz 480 kHz 87 % 100 ns 3.8 4.0 4.2 V 150 mV 0.4 V 1.2 V 0.3 µA 0.1 0.1 1.0 µA 0.4 1.0 mA 140 °C November 2010 © Diodes Incorporated ...

Page 5

... C, unless otherwise noted. A Load Transient Test (I =0.2A to 0.8A. Step at 0.8A/us) OUT Time- 100us/div Start-up through Enable (I =1A, resistive load) OUT Time- 50us/div Shutdown Through Enable (I =1A, resistive load) OUT Time- 50us/div www.diodes.com AP5100 Frequency November 2010 © Diodes Incorporated ...

Page 6

... ⎝ ⎠ 0.81 Equation 1 (V) R (kΩ) R (kΩ 80.6 (1%) 64.9 (1%) 49.9 (1%) 23.7 (1%) 49.9 (1%) 16.2 (1%) 49.9 (1%) 9.53 (1%) Output Voltages × − OUT IN OUT = L × × Δ Equation 2 is the inductor ripple current. November 2010 © Diodes Incorporated ...

Page 7

... UVLO fault www.diodes.com AP5100 Frequency = × ΔI Vout ESR capacitor inductor V OUT = − × × 0.3V diode out V IN Equation 5 5V BOOST DIODE 1 BST AP5100 10nF 6 SW Figure 6. External Bootstrap Diode November 2010 © Diodes Incorporated ...

Page 8

... These interconnecting impedances should be minimized by using wide, short printed circuit traces. The input capacitor needs close as possible to the IN and GND pins. The external feedback resistors should be placed next to the FB pin www.diodes.com AP5100 Frequency November 2010 © Diodes Incorporated ...

Page 9

... Ordering Information Package W : SOT26 Package Device Code AP5100WG-7 W Note: 6. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. Marking Information SOT26 Part Number AP5100W Package Outline Dimensions SOT26 AP5100 Document number: DS32130 Rev ...

Page 10

... Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. ...

Related keywords