G924 datasheet(3/9 Pages) GMT

3 / 9 page

Ver: 0.2 Preliminary

Oct 01, 2004

TEL: 886-3-5788833

http://www.gmt.com.tw

G924

Global Mixed-mode Technology Inc.

Absolute Maximum Ratings

VIN to GND.………………………………-0.3V to +6.5V

Output Short-Circuit Duration…….….……….…Infinite

SHDN to GND……..………....….….-0.3V to VIN+0.3V

OUT to GND………………………-0.3V to (VIN + 0.3V)

Continuous Power Dissipation (TA = +25°C)

SOT-23-5………..…………..……….……….…520mW

Operating Temperature Range…….....-40°C to +85°C

Junction Temperature………………...………+150°C

θJA

(1)….…..…………….……….…..…..240°C/Watt

Storage Temperature Range……….-65°C to +150°C

Reflow Temperature (soldering, 10sec)…..…….260°C

Note (1): See Recommended Minimum Footprint

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the

specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Electrical Characteristics

(VIN =5V, V SHDN =VIN, TA =TJ =25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITION

MIN TYP MAX UNIT

Input Voltage (Note 2)

VIN

2.5

---

5.5

VOUT≥2.50V, IOUT=1mA

-2

---

2.50V>VOUT≥1.80V, IOUT=1mA

-3

---

Output Voltage Accuracy

VOUT

1.80V>VOUT≥1.20V, IOUT=1mA

-4

---

Maximum Output Current

300

---

Current Limit (Note 3)

ILIM

400

550

---

Short Circuit Current

Isc

---

280

---

Ground Pin Current

---

µA

VOUT=1.50V

---

1.36

---

VOUT=1.80V

---

1.10

---

VOUT=2.50V

---

0.58

---

VOUT=3.00V

---

0.41

---

VOUT=3.30V

---

0.36

---

VOUT=4.75V

---

0.25

---

Dropout Voltage (Note 4)

VDROP

IOUT =300mA

VOUT=5.00V

---

0.24

---

Line Regulation

∆VLNR

VIN=VOUT+0.1V,to 5.5V IOUT=10mA

---

0.06

---

%/V

Load Regulation

∆VLDR

IOUT = 10mA to 300mA

---

0.02

---

%/mA

Ripple Rejection

PSRR

F=1kHz, 0.45VP-P, IOUT=10mA

---

Output Voltage Noise

(10Hz to 100kHz)

COUT = 1µF, IOUT = 1mA, CBYP = 10nF

---

µVRMS

SHUTDOWN

VIH

Regulator enabled

1.5

---

SHDN

Input Threshold

VIL

Regulator shutdown

---

0.4

SHDN

Input Bias Current

I SHDN

V SHDN = VIN

TA = +25°C

---

0.003

µA

Shutdown Supply Current

IQSHDN

VOUT = 0V

TA = +25°C

---

0.2

µA

THERMAL PROTECTION

Thermal Shutdown Temperature

TSHDN

---

145

---

°C

Thermal Shutdown Hysteresis

∆TSHDN

---

°C

Note 1: Limits is 100% production tested at TA= +25°C. Low duty pulse techniques are used during test to

maintain junction temperature as close to ambient as possible.

Note 2: Guaranteed by line regulation test.

Note 3: Not tested. For design purposes, the current limit should be considered 400mA minimum.

Note 4: The dropout voltage is defined as (VIN-VOUT) when VOUT is 100mV below the target value of VOUT. The per-

formance of every G924 part, see “Typical Performance Characteristics”.

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