Datasheet

ManualsBrandsANALOG DEVICES ManualsPMICsPMIC - DC/DC voltage regulator Holder LFCSP 16 VQ

1 Amp/1.5 Amp/2 Amp Synchronous,

Step-Down DC-to-DC Converters

Data Sheet

ADP2105/ADP2106/ADP2107

Rev. D

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

FEATURES

Extremely high 97% efficiency

Ultralow quiescent current: 20 μA

1.2 MHz switching frequency

0.1 μA shutdown supply current

Maximum load current

ADP2105: 1 A

ADP2106: 1.5 A

ADP2107: 2 A

Input voltage: 2.7 V to 5.5 V

Output voltage: 0.8 V to V

Maximum duty cycle: 100%

Smoothly transitions into low dropout (LDO) mode

Internal synchronous rectifier

Small 16-lead 4 mm × 4 mm LFCSP_VQ package

Optimized for small ceramic output capacitors

Enable/shutdown logic input

Undervoltage lockout

Soft start

Supported by ADIsimPower™ design tool

APPLICATIONS

Mobile handsets

PDAs and palmtop computers

Telecommunication/networking equipment

Set top boxes

Audio/video consumer electronics

GENERAL DESCRIPTION

The ADP2105/ADP2106/ADP2107 are low quiescent current,

synchronous, step-down dc-to-dc converters in a compact 4 mm ×

4 mm LFCSP_VQ package. At medium to high load currents,

these devices use a current mode, constant frequency pulse-

width modulation (PWM) control scheme for excellent stability

and transient response. To ensure the longest battery life in portable

applications, the ADP2105/ADP2106/ADP2107 use a pulse

frequency modulation (PFM) control scheme under light load

conditions that reduces switching frequency to save power.

The ADP2105/ADP2106/ADP2107 run from input voltages of

2.7 V to 5.5 V, allowing single Li+/Li− polymer cell, multiple

alkaline/NiMH cells, PCMCIA, and other standard power sources.

The output voltage of ADP2105/ADP2106/ADP2107 is adjustable

from 0.8 V to the input voltage (indicated by ADJ), whereas the

ADP2105/ADP2106/ADP2107 are available in preset output

voltage options of 3.3 V, 1.8 V, 1.5 V, and 1.2 V (indicated by x.x V).

Each of these variations is available in three maximum current

levels: 1 A (ADP2105), 1.5 A (ADP2106), and 2 A (ADP2107). The

power switch and synchronous rectifier are integrated for minimal

external part count and high efficiency. During logic controlled

shutdown, the input is disconnected from the output, and it

draws less than 0.1 µA from the input source. Other key features

include undervoltage lockout to prevent deep battery discharge

and programmable soft start to limit inrush current at startup.

TYPICAL OPERATING CIRCUIT

ADP2107-ADJ

OFF

LX2

FB PWIN1

AGND

OUTPUT VOLTAGE = 2.5V

COMP

PGND

GND

LX1

PWIN2

INPUT VOLTAGE = 2.7V TO 5.5V

10μF

1nF

70kΩ

120pF

16 15 14 13

5 6 7 8

2μH

4.7μF

LOAD

0A TO 2A

10μF

10Ω

0.1μF

NC = NO CONNECT

06079-002

85kΩ

40kΩ

Figure 1. Circuit Configuration of ADP2107 with V

OUT

= 2.5 V

100

0 2000

06079-001

LOAD CURRENT (mA)

EFFICIENCY (%)

200 400 600 800 1000 1200 1400 1600 1800

= 3.3V

= 3.6V

= 5V

OUT

= 2.5V

Figure 2. Efficiency vs. Load Current for the ADP2107 with V

OUT

= 2.5 V

Summary of content (36 pages)

PAGE 1
Amp/1.5 Amp/2 Amp Synchronous, Step-Down DC-to-DC Converters ADP2105/ADP2106/ADP2107 Data Sheet FEATURES GENERAL DESCRIPTION Extremely high 97% efficiency Ultralow quiescent current: 20 μA 1.2 MHz switching frequency 0.1 μA shutdown supply current Maximum load current ADP2105: 1 A ADP2106: 1.5 A ADP2107: 2 A Input voltage: 2.7 V to 5.5 V Output voltage: 0.
PAGE 2
ADP2105/ADP2106/ADP2107 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 External Component Selection ................................................ 16 Applications ....................................................................................... 1 Setting the Output Voltage ........................................................ 16 General Description ........................................................
PAGE 3
Data Sheet ADP2105/ADP2106/ADP2107 FUNCTIONAL BLOCK DIAGRAM COMP 5 SS 6 SOFT START REFERENCE 0.8V CURRENT SENSE AMPLIFIER 14 IN 9 PWIN2 13 PWIN1 10 LX1 12 LX2 11 PGND FB 16 FB 16 GM ERROR AMP PWM/ PFM CONTROL AGND 7 GND 2 FOR PRESET VOLTAGE OPTIONS ONLY DRIVER AND ANTISHOOT THROUGH GND 3 GND 4 CURRENT LIMIT SLOPE COMPENSATION NC 8 GND 15 OSCILLATOR ZERO CROSS COMPARATOR THERMAL SHUTDOWN 06079-037 EN 1 Figure 3. Rev.
PAGE 4
ADP2105/ADP2106/ADP2107 Data Sheet SPECIFICATIONS VIN = 3.6 V @ TA = 25°C, unless otherwise noted. 1 Table 1. Parameter INPUT CHARACTERISTICS Input Voltage Range Undervoltage Lockout Threshold Min Typ 2.7 Max Unit Conditions 5.5 V V V V V mV −40°C ≤ TJ ≤ +125°C VIN rising VIN rising, −40°C ≤ TJ ≤ +125°C VIN falling VIN falling, −40°C ≤ TJ ≤ +125°C VIN falling V V V 2.4 2.2 2.6 2.2 2.0 Undervoltage Lockout Hysteresis 2 OUTPUT CHARACTERISTICS Output Regulation Voltage 2.5 200 3.267 3.3 3.
PAGE 5
Data Sheet Parameter INPUT CURRENT CHARACTERISTICS IN Operating Current ADP2105/ADP2106/ADP2107 Min Typ Max Unit Conditions 30 µA µA µA 30 µA 1 µA ADP210x(ADJ), VFB = 0.9 V ADP210x(ADJ), VFB = 0.9 V, −40°C ≤ TJ ≤ +125°C ADP210x(x.x V) output voltage 10% above regulation voltage ADP210x(x.x V) output voltage 10% above regulation voltage, −40°C ≤ TJ ≤ +125°C VEN = 0 V 20 20 IN Shutdown Current4 LX (SWITCH) NODE CHARACTERISTICS LX On Resistance 4 0.
PAGE 6
ADP2105/ADP2106/ADP2107 Data Sheet ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 2. Parameter IN, EN, SS, COMP, FB to AGND LX1, LX2 to PGND PWIN1, PWIN2 to PGND PGND to AGND GND to AGND PWIN1, PWIN2 to IN Operating Junction Temperature Range Storage Temperature Range Soldering Conditions Rating −0.3 V to +6 V −0.3 V to (VIN + 0.3 V) −0.3 V to +6 V −0.3 V to +0.3 V −0.3 V to +0.3 V −0.3 V to +0.
PAGE 7
Data Sheet ADP2105/ADP2106/ADP2107 13 PWIN1 14 IN 15 GND 16 FB PIN CONFIGURATION AND FUNCTION DESCRIPTIONS PIN 1 INDICATOR 12 LX2 EN 1 11 PGND 10 LX1 9 PWIN2 NOTES 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. 2. THE EXPOSED PAD SHOULD BE SOLDERED TO AN EXTERNAL GROUND PLANE UNDERNEATH THE IC FOR THERMAL DISSIPATION. 06079-003 NC 8 COMP 5 AGND 7 GND 4 TOP VIEW (Not to Scale) GND 2 SS 6 GND 3 ADP2105/ ADP2106/ ADP2107 Figure 4. Pin Configuration Table 4.
PAGE 8
ADP2105/ADP2106/ADP2107 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 100 95 95 VIN = 2.7V VIN = 3.6V 85 80 VIN = 4.2V 75 VIN = 5.5V 85 VIN = 4.2V VIN = 5.5V 80 60 10 70 06079-084 INDUCTOR: SD14, 2.5µH DCR: 60mΩ TA = 25°C 65 65 1000 100 INDUCTOR: SD3814, 3.3µH DCR: 93mΩ TA = 25°C 1 10 LOAD CURRENT (mA) 06079-086 75 70 1 VIN = 3.6V 90 VIN = 2.7V EFFICIENCY (%) EFFICIENCY (%) 90 1000 100 LOAD CURRENT (mA) Figure 5. Efficiency—ADP2105 (1.2 V Output) Figure 8.
PAGE 9
Data Sheet ADP2105/ADP2106/ADP2107 100 100 95 95 VIN = 3.6V VIN = 2.7V 90 VIN = 3.6V 85 EFFICIENCY (%) 85 80 VIN = 4.2V 75 70 VIN = 5.5V 65 VIN = 4.2V 80 VIN = 5.5V 75 70 65 60 60 50 1 10 100 06079-010 INDUCTOR: SD12, 1.2µH DCR: 37mΩ TA = 25°C 55 50 10k 1k INDUCTOR: D62LCB, 1.5µH DCR: 21mΩ TA = 25°C 55 1 10 LOAD CURRENT (mA) 10k 1k LOAD CURRENT (mA) Figure 11. Efficiency—ADP2107 (1.2 V) Figure 14. Efficiency—ADP2107 (1.8 V) 1.23 100 95 2.7V, –40°C 3.6V, –40°C 5.
PAGE 10
ADP2105/ADP2106/ADP2107 Data Sheet 190 10k SWITCH ON RESISTANCE (mΩ) +25°C –40°C 100 10 1 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 160 PMOS POWER SWITCH 150 140 130 NMOS SYNCHRONOUS RECTIFIER 120 110 06079-016 +125°C 170 100 2.7 5.2 06079-093 1k 3.0 3.3 INPUT VOLTAGE (V) 120 0.801 100 0.800 0.799 0.798 0.797 5.4 80 NMOS SYNCHRONOUS RECTIFIER 60 40 20 06079-017 0.796 –20 0 20 40 60 80 100 0 2.7 120 125 TA = 25°C 3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.
PAGE 11
Data Sheet ADP2105/ADP2106/ADP2107 2.35 LX (SWITCH) NODE 2.30 3 ADP2106 (1.5A) 2.20 2.15 INDUCTOR CURRENT 2.05 2.00 1 1.95 OUTPUT VOLTAGE 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 06079-074 TA = 25°C 3.0 CH1 1V CH3 5V 5.7 INPUT VOLTAGE (V) Figure 23. Peak Current Limit of ADP2106 PULSE-SKIPPING THRESHOLD CURRENT (mA) PEAK CURRENT LIMIT (A) 2.90 2.85 ADP2107 (2A) 2.80 2.75 2.70 2.65 2.55 TA = 25°C 3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 06079-071 2.60 120 105 90 VOUT = 1.
PAGE 12
ADP2105/ADP2106/ADP2107 Data Sheet 190 170 160 3 PMOS POWER SWITCH 150 LX (SWITCH) NODE 140 1 130 OUTPUT VOLTAGE (AC-COUPLED) NMOS SYNCHRONOUS RECTIFIER 120 4 06079-093 110 100 2.7 3.0 3.3 3.6 3.9 4.2 4.5 INPUT VOLTAGE (V) 4.8 5.1 06079-033 SWITCH ON RESISTANCE (mΩ) 180 INDUCTOR CURRENT CH1 50mV CH3 2V 5.4 CH4 200mAΩ M 400ns T 17.4% A CH3 3.88V Figure 32. DCM Mode of Operation at Light Load (100 mA) Figure 29. Switch On Resistance vs.
PAGE 13
Data Sheet ADP2105/ADP2106/ADP2107 LX (SWITCH) NODE ENABLE VOLTAGE 3 3 OUTPUT VOLTAGE CHANNEL 3 FREQUENCY = 336.6kHz Δ: 2.86A @: 2.86A 1 INDUCTOR CURRENT INDUCTOR CURRENT OUTPUT VOLTAGE 1 CH1 1V CH3 5V CH4 1AΩ M 4µs T 45% A CH3 1.8V 06079-035 4 06079-032 4 CH1 1V CH3 5V Figure 35. Current Limit Behavior of ADP2107 (Frequency Foldback) CH4 500mAΩ M 400µs T 20.2% A CH1 1.84V Figure 36. Startup and Shutdown Waveform (CSS = 1 nF → SS Time = 1 ms) Rev.
PAGE 14
ADP2105/ADP2106/ADP2107 Data Sheet THEORY OF OPERATION The ADP2105/ADP2106/ADP2107 are step-down, dc-to-dc converters that use a fixed frequency, peak current mode architecture with an integrated high-side switch and low-side synchronous rectifier. The high 1.2 MHz switching frequency and tiny 16-lead, 4 mm × 4 mm LFCSP_VQ package allow for a small stepdown dc-to-dc converter solution.
PAGE 15
Data Sheet ADP2105/ADP2106/ADP2107 SLOPE COMPENSATION Short-Circuit Protection Slope compensation stabilizes the internal current control loop of the ADP2105/ADP2106/ADP2107 when operating beyond 50% duty cycle to prevent subharmonic oscillations. It is implemented by summing a fixed, scaled voltage ramp to the current sense signal during the on-time of the P-channel MOSFET switch. The ADP2105/ADP2106/ADP2107 include frequency foldback to prevent output current runaway on a hard short.
PAGE 16
ADP2105/ADP2106/ADP2107 Data Sheet APPLICATIONS INFORMATION ADIsimPower DESIGN TOOL SETTING THE OUTPUT VOLTAGE The ADP2105/ADP2106/ADP2107 is supported by ADIsimPower design tool set. ADIsimPower is a collection of tools that produce complete power designs optimized for a specific design goal. The tools enable the user to generate a full schematic, bill of materials, and calculate performance in minutes.
PAGE 17
Data Sheet ADP2105/ADP2106/ADP2107 0.1μF 10Ω VIN INPUT VOLTAGE = 2.7V TO 5.5V CIN1 FB ON OFF 16 15 14 13 FB GND IN PWIN1 LX2 12 1 EN 2 GND 3 GND 4 GND OUTPUT VOLTAGE = 0.8V TO VIN L ADP2105/ ADP2106/ ADP2107 RTOP SS 5 6 COUT LX1 10 PWIN2 9 COMP RCOMP PGND 11 VIN AGND NC 7 LOAD FB CIN2 RBOT 8 CSS 06079-038 CCOMP NC = NO CONNECT Figure 38.
PAGE 18
Data Sheet 2.7 V 0.83 µH 0.99 µH 1.19 µH 1.65 µH 2.18 µH 3.6 V 1.00 µH 1.09 µH 1.19 µH 1.65 µH 2.18 µH VIN 4.2 V 1.07 µH 1.21 µH 1.29 µH 1.65 µH 2.18 µH 5.5 V 1.17 µH 1.36 µH 1.51 µH 1.70 µH 2.18 µH Table 9. Inductor Recommendations for the ADP2105/ ADP2106/ADP2107 Toko Coilcraft Cooper Bussmann Large-Sized Inductors (> 5 mm × 5 mm) CDRH4D18, 4D22, 4D28, 5D18, 6D12 D52LC, D518LC, D62LCB 20 25 30 35 40 45 50 55 60 65 70 OUTPUT CAPACITOR × OUTPUT VOLTAGE (μC) Figure 39.
PAGE 19
Data Sheet ADP2105/ADP2106/ADP2107 used in parallel to ensure that the output capacitance is sufficient under all conditions for stable behavior. Table 10. Recommended Input and Output Capacitor Selection for the ADP2105/ADP2106/ADP2107 Capacitor 4.7 µF, 10 V X5R 0805 10 μF, 10 V X5R 0805 22 μF, 6.3 V X5R 0805 LOOP COMPENSATION The ADP2105/ADP2106/ADP2107 utilize a transconductance error amplifier to compensate the external voltage loop.
PAGE 20
ADP2105/ADP2106/ADP2107 Data Sheet BODE PLOTS 60 60 ADP2106 ADP2105 50 50 180 0 CROSSOVER OUTPUT VOLTAGE = 1.8V FREQUENCY = 87kHz –10 INPUT VOLTAGE = 5.5V LOAD CURRENT = 1A –20 INDUCTOR = 2.2µH (LPS4012) OUTPUT CAPACITOR = 22µF + 22µF –30 COMPENSATION RESISTOR = 180kΩ COMPENSATION CAPACITOR = 56pF –40 1 10 100 FREQUENCY (kHz) 20 10 135 180 CROSSOVER OUTPUT VOLTAGE = 1.2V –10 FREQUENCY = 79kHz INPUT VOLTAGE = 5.5V LOAD CURRENT = 1A –20 INDUCTOR = 3.
PAGE 21
Data Sheet ADP2105/ADP2106/ADP2107 LOAD TRANSIENT RESPONSE T T OUTPUT CURRENT OUTPUT CURRENT 3 3 OUTPUT VOLTAGE (AC-COUPLED) OUTPUT VOLTAGE (AC-COUPLED) 2 2 1 1 LX NODE (SWITCH NODE) LX NODE (SWITCH NODE) M 20.0µs T 10.00% A CH3 700mA CH3 700mA Figure 50. 1 A Load Transient Response for ADP2105-1.2 with External Components Chosen for 10% Overshoot Figure 47. 1 A Load Transient Response for ADP2105-1.2 with External Components Chosen for 5% Overshoot T A OUTPUT CAPACITOR: 22µF + 4.
PAGE 22
ADP2105/ADP2106/ADP2107 Data Sheet EFFICIENCY CONSIDERATIONS Transition Losses Efficiency is the ratio of output power to input power. The high efficiency of the ADP2105/ADP2106/ADP2107 has two distinct advantages. First, only a small amount of power is lost in the dcto-dc converter package that reduces thermal constraints. Second, the high efficiency delivers the maximum output power for the given input power, extending battery life in portable applications.
PAGE 23
Data Sheet ADP2105/ADP2106/ADP2107 For example, in an application where the ADP2107(1.8 V) is used with an input voltage of 3.6 V, a load current of 2 A, and a maximum ambient temperature of 85°C, at a load current of 2 A, the most significant contributor of power dissipation in the dc-todc converter package is the conduction loss of the power switches. Using the graph of switch on resistance vs.
PAGE 24
ADP2105/ADP2106/ADP2107 Data Sheet DESIGN EXAMPLE 4. Consider an application with the following specifications: Input Voltage = 3.6 V to 4.2 V. Output Voltage = 2 V. Typical Output Current = 600 mA. Maximum Output Current = 1.2 A. Soft Start Time = 2 ms. Overshoot ≤ 100 mV under all load transient conditions. 1. 2. 3. 5. Choose the dc-to-dc converter that satisfies the maximum output current requirement. Because the maximum output current for this application is 1.
PAGE 25
Data Sheet ADP2105/ADP2106/ADP2107 EXTERNAL COMPONENT RECOMMENDATIONS For popular output voltage options at 80 kHz crossover frequency with 10% overshoot for a 1 A load transient (refer to Figure 37 and Figure 38). Table 11. Recommended External Components Part ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2105-1.
PAGE 26
ADP2105/ADP2106/ADP2107 Data Sheet For popular output voltage options at 80 kHz crossover frequency with 5% overshoot for a 1 A load transient (refer to Figure 37 and Figure 38). Table 12. Recommended External Components Part ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2105(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2106(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2107(ADJ) ADP2105-1.2 ADP2105-1.5 ADP2105-1.8 ADP2105-3.
PAGE 27
Data Sheet ADP2105/ADP2106/ADP2107 CIRCUIT BOARD LAYOUT RECOMMENDATIONS Good circuit board layout is essential to obtaining the best performance from the ADP2105/ADP2106/ADP2107. Poor circuit layout degrades the output ripple, as well as the electromagnetic interference (EMI) and electromagnetic compatibility (EMC) performance. • Make the high current path from the PGND pin through L and COUT back to the PGND plane as short as possible.
PAGE 28
ADP2105/ADP2106/ADP2107 Data Sheet EVALUATION BOARD EVALUATION BOARD SCHEMATIC FOR ADP2107 (1.8 V) C7 0.1µF VCC R3 10Ω INPUT VOLTAGE = 2.7V TO 5.5V VIN VCC C1 10µF1 OUT U1 J1 GND 16 15 FB GND IN 1 EN 2 GND 14 13 PWIN1 LX2 12 EN R2 100kΩ PGND 11 L12 2µH ADP2107-1.8 LX1 10 GND 3 1 PWIN2 9 GND 4 OUT 6 7 R4 0Ω C4 22µF1 C3 22µF1 C2 10µF1 COMP SS AGND PADDLE NC 5 OUTPUT VOLTAGE = 1.
PAGE 29
Data Sheet ADP2105/ADP2106/ADP2107 ENABLE VIN GND GND ANALOG GROUND PLANE POWER GROUND PLANE INPUT VOLTAGE PLANE CONNECTING THE TWO PWIN PINS AS CLOSE AS POSSIBLE. VIN CONNECT THE EXPOSED PAD OF THE ADP2105/ADP2106/ADP2107 TO A LARGE GROUND PLANE TO AID POWER DISSIPATION. VOUT FEEDBACK TRACE: THIS TRACE CONNECTS THE TOP OF THE RESISTIVE VOLTAGE DIVIDER ON THE FB PIN TO THE OUTPUT. PLACE THIS TRACE AS FAR AWAY FROM THE LX NODE AND HIGH CURRENT TRACES AS POSSIBLE TO PREVENT NOISE PICKUP. Figure 55.
PAGE 30
ADP2105/ADP2106/ADP2107 Data Sheet APPLICATION CIRCUITS 0.1μF 10Ω VIN INPUT VOLTAGE = 5V 10μF1 VOUT OFF 16 15 FB GND IN 14 13 PWIN1 LX2 12 1 EN 2 GND 2.5μH2 PGND 11 ADP2107-3.3 3 GND LX1 10 4 GND PWIN2 9 COMP SS 5 6 10μF1 8 1nF 70kΩ OUTPUT VOLTAGE = 3.3V 4.7μF1 LOAD 0A TO 2A VIN AGND NC 7 VOUT 10μF1 1 MURATA X5R 0805 10μF: GRM21BR61A106KE19L 4.7μF: GRM21BR61A475KA73L 2 SUMIDA CDRH5D28: 2.5μH NOTES 1. NC = NO CONNECT. 2.
PAGE 31
Data Sheet ADP2105/ADP2106/ADP2107 0.1μF 10Ω VIN INPUT VOLTAGE = 2.7V TO 4.2V 4.7μF1 VOUT OFF 16 15 FB GND IN 14 13 PWIN1 LX2 12 1 EN 2 GND 2.7μH2 PGND 11 ADP2105-1.8 3 GND LX1 10 4 GND PWIN2 9 COMP SS 5 6 4.7μF1 8 1nF 270kΩ OUTPUT VOLTAGE = 1.8V 22μF1 LOAD 0A TO 1A VIN AGND NC 7 VOUT 22μF1 1 MURATA X5R 0805 4.7μF: GRM21BR61A475KA73L 22μF: GRM21BR60J226ME39L 2 TOKO 1098AS-DE2812: 2.7μH NOTES 1. NC = NO CONNECT. 2.
PAGE 32
ADP2105/ADP2106/ADP2107 Data Sheet 0.1μF 10Ω VIN INPUT VOLTAGE = 5V 10μF1 FB OFF 16 15 14 13 FB GND IN PWIN1 LX2 12 1 EN 2 GND 2.5μH2 85kΩ ADP2106-ADJ 3 GND LX1 10 4 GND PWIN2 9 COMP SS 5 6 180kΩ 56pF OUTPUT VOLTAGE = 2.5V PGND 11 AGND NC 1nF 7 10μF1 22μF1 LOAD 0A TO 1.5A FB VIN 40kΩ 4.7μF1 8 1 MURATA X5R 0805 4.7μF: GRM21BR61A475KA73L 10μF: GRM21BR61A106KE19L 22μF: GRM21BR60J226ME39L 2 COILTRONICS SD14: 2.5μH NOTES 1. NC = NO CONNECT. 2.
PAGE 33
Data Sheet ADP2105/ADP2106/ADP2107 OUTLINE DIMENSIONS 4.10 4.00 SQ 3.90 0.60 MAX 1.95 REF 0.60 MAX 13 1 12 3.75 BSC SQ 0.65 BSC 2.50 2.35 SQ 2.20 EXPOSED PAD 9 TOP VIEW 1.00 0.85 0.80 SEATING PLANE 12° MAX 0.50 0.40 0.30 0.80 MAX 0.65 TYP 0.35 0.30 0.25 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.20 REF 4 8 5 0.25 MIN BOTTOM VIEW FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET.
PAGE 34
ADP2105/ADP2106/ADP2107 NOTES Rev.
PAGE 35
Data Sheet ADP2105/ADP2106/ADP2107 NOTES Rev.