Data Sheet: SuperetaTM iQM Series –Single Output Quarter Brick

Electrical Data:

iQM48070A015V-000 through -009: 1.5V, 70A Output

 

Characteristic

Min

 

Typ

 

Max

 

 

Unit

 

Notes & Conditions

 

Output Voltage Initial Setpoint

1.47

 

1.5

 

1.53

 

 

Vdc

 

Vin=Vin,nom; Io=Io,max; Tc = 25˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Tolerance

1.45

 

1.5

 

1.55

 

 

Vdc

 

Over all rated input voltage, load, and

 

 

 

 

 

 

temperature conditions to end of life

 

 

 

 

 

 

 

 

 

 

 

 

Efficiency

---

 

82

 

---

 

%

 

Vin=Vin,nom; Io=Io,max; Tc = 25˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

Line Regulation

---

 

1

 

5.0*

 

 

mV

 

Vin=Vin,min to Vin,max, Io and Tc fixed

 

 

 

 

 

 

 

 

 

 

 

 

 

Load Regulation

---

 

1

 

7.0*

 

 

mV

 

Io=Io,min to Io,max, Vin and Tc fixed

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature Regulation

---

 

10

 

50*

 

 

mV

 

Tc=Tc,min to Tc,max, Vin and Io fixed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

At loads less than Io,min the module will

 

Output Current

7

 

---

 

70

 

 

A

 

continue to regulate the output voltage, but

 

 

 

 

 

 

 

 

 

 

 

the output ripple may increase

 

Output Current Limiting Threshold

---

 

75

 

---

 

 

A

 

Vo = 0.9*Vo,nom, Tc<Tc,max

 

Short Circuit Current

---

 

2

 

---

 

 

A

 

Vo = 0.25V, Tc = 25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mVpp

 

≥

 

 

---

 

60

 

100*

 

 

 

 

Vin=48V, Io Io,min, Tc=25˚C. Measured

 

 

 

 

 

 

 

 

across one 0.1uF, one 1.0 uF, and one

 

Output Ripple and Noise Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47uF ceramic capacitors located 2 inches

 

 

 

 

 

 

 

 

 

 

 

 

---

 

10

 

---

 

 

mVrms

 

away – see input/output ripple

 

 

 

 

 

 

 

measurement figure; BW = 20MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Adjustment Range

80

 

---

 

110

 

 

%Vo,nom

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Sense Range

---

 

---

 

10

 

 

%Vo,nom

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dynamic Response:

 

 

 

 

 

 

 

 

 

di/dt = 0.1A/uS, Vin=Vin,nom; load step

 

Recovery Time to 10% of Peak Deviation

---

 

250

 

---

 

 

 

 

from 50% to 75% of Io,max, Tc=25˚C with at

 

 

 

 

 

∝S

 

least one 1.0 uF and one 47uF ceramic

 

Transient Voltage

---

 

100

 

---

 

 

mV

 

capacitors across the output terminals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Overshoot during startup

0

 

0

 

---

 

 

mV

 

Vin=Vin,nom; Io=Io,max,Tc=25˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

Switching Frequency

---

 

140

 

---

 

 

kHz

 

Fixed

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Over Voltage Protection

1.80*

 

1.83

 

2.10*

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

External Load Capacitance

48

 

---

 

50,000 †

 

uF

 

Minimum ESR > 2.5 mΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

Isolation Capacitance

---

 

1000

 

---

 

 

pF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Isolation Resistance

10

 

---

 

---

 

 

MΩ

 

 

 

Vref

 

 

1.225

 

 

 

 

V

 

Required for trim calculation

 

 

 

 

 

 

 

 

 

 

 

 

* Engineering Estimate

†Contact TDK Innoveta for applications that require additional capacitance or very low ESR

©2004-2006 TDK Innoveta Inc.

℡ (877) 498-0099

5/15

iQM 1.5V/70A Datasheet 8/4/2006

 

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TDK iQM Series manual Electrical Data, IQM48070A015V-000 through -009 1.5V, 70A Output
Page 4 Page 6

iQM Series specifications

The TDK iQM Series represents a significant advancement in the realm of power inductors, catering specifically to applications that demand high efficiency and reliability. Designed for use in a variety of devices, including smartphones, tablets, and power supply systems, the iQM Series is tailored to meet the rigorous demands of modern electronics.

One of the standout features of the iQM Series is its compact size. The inductors are designed to maximize performance while minimizing space, making them ideal for applications where every millimeter counts. This compact design is achieved without compromising on performance, offering high inductance values that are essential for stable operation in power conversion circuits.

TDK has integrated innovative materials in the iQM inductors, utilizing a composite magnetic core that enhances energy efficiency and thermal performance. This ensures that the inductors operate effectively even at higher currents, reducing losses associated with heat generation. As a result, the iQM Series boasts a low DC resistance, contributing to improved overall system efficiency and enabling reliable operation in demanding environments.

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Furthermore, the iQM Series is designed with a focus on minimizing noise. Advanced construction techniques have been employed to reduce electromagnetic interference, which is crucial for maintaining signal integrity in high-frequency applications. This makes the iQM Series particularly well-suited for power management circuits used in applications like DC-DC converters and power supply solutions.

The iQM Series also boasts impressive saturation current ratings, allowing for reliable performance even in peak current scenarios. This feature is essential for applications where transient loads can cause inductors to experience higher than normal currents. The ability to handle such conditions without saturating ensures longer device life and better performance under stress.

In summary, the TDK iQM Series of power inductors stands out due to its compact design, high efficiency, versatile inductance values, and effective noise reduction features. These qualities make iQM inductors an excellent choice for engineers looking to enhance their power management circuits in today's technologically advanced devices. With TDK's commitment to innovation and quality, the iQM Series is set to play a vital role in the future of electronics.
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