MIC2829 datasheet(7/52 Pages) MICREL

7 / 52 page

Micrel Inc.

MIC2829

May 2010

M9999-051410-B

Absolute Maximum Ratings

(1)

All Power Input Supplies……………………….….-0.3 to 6V

All Logic Inputs…….............................................-0.3 to 6V

All Feedback Inputs

..................... -0.3 to (VAVIN + 0.3V)

Ambient Storage Temperature ……………-65

°C to +150°C

ESD Rating

(3)................................................. ESD Sensitive

ESD Rating (SIMRST, CLK, IO, PWR pins)......8kV to GND

Operating Ratings

(2)

Supply and Bias Voltage (VPVIN, VAVIN).………..2.7V to 5.5V

Supply Voltage (VINLDO) .. ……………………….1.8V to VAVIN

Supply Voltage (VLSPWR) ........………………….1.6V to VAVIN

All Logic Inputs .........................………………….0V to VAVIN

All Feedback Inputs ..................………………….0V to VAVIN

Junction Temperature Range (TJ)... ….-40°C ≤ TJ ≤ +125°C

Thermal Resistance

5.5mm x 5.5mm LGA (

JA)..............................38.7°C/W

5.5mm x 5.5mm FBGA (

JA) ...........................38.7°C/W

Electrical Characteristics – General

(4)

TA = 25°C; AVINX = 4.3V unless otherwise specified. Bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.

Parameter

Condition

Min

Typ

Max

Unit

Supply Voltage Range

All VAVIN and VPVIN

2.7

5.5

Shutdown Current

VIN = 5.0V

All outputs disabled

μA

High

1.1

Enable (ENx) & Voltage Scaling

Threshold (VSC2, VSLS)

Low

0.2

VIL < 0.2V

μA

Enable & Voltage Scaling Input

Current

VIH > 1.1V

μA

Over-Temperature Shutdown

Threshold

150

°C

Over-Temperature Hysteresis

°C

Under-voltage Lockout

VAVIN rising

2.4

2.55

2.7

When Out_x disabled; IOUT = 3mA.

300

Ω

Auto-Discharge NFET

Resistance

(5)

When Out_x disabled; IOUT = 3mA.

DC5 & 6 pull down on feedback pin.

700

Ω

Electrical Characteristics – Quiescent Current

(6)

TA=25

oC, AVINx = PVINx = INLDOx = ENGLB = 4.3V; ENx = 0V ; All I

OUT = 0mA unless otherwise noted.

Bold values indicate -40

°C ≤ T

J ≤ 125°C.

Parameter

Condition

Min

Typ

Max

Unit

Initial Sequence IQ

DC1, 3, 4 Non switching, No loads

LDO 1, 2, 11 IOUT = 100μA

220

μA

DC2 Additional IQ

DC2 enabled. ENDC2 = 4.3V

VFB > VOUTNOM x 1.2 (Non switching)

μA

DC 5, 6 Additional IQ

Per enabled DC. ENDCx = 4.3V

VFB > 1.2V; IOUT = 0mA (Non switching)

945

μA

LDO 3, 4, LSPWR Additional IQ

Per enabled LDO. ENLx = 4.3V

IOUT =100µA

μA

LNR 5 – 10 Additional IQ

Per enabled LNR. ENLx = 4.3V

IOUT =100µA

μA

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