DS(ON) DS(ON)
V = 2.5V to 5.5V,
IN
0.40 1.236 1.854 0.40
GS5806-1.2, -40° C≤T GS5806-1.8, -40° C≤T V = 2.5V to 5.5V
IN
≤ 85° C ≤ 85° C
1.164 1.746
1.200 1.800 0.04 0.5
η (%)
IN FB IN
GS5806
Operating Temperature Range...........-40° C to +85° C Junction Temperature ............................+125° C Storage Temperature Range............-65° C to +150° C Lead Temperature (Soldering, 10s)................+300° C

深圳市中广芯源科技有限公司
Typical Performance Characteristics (Test Figure 1 above unless otherwise specified)
η vs Io(VOUT=1.2V) 100 90 80 70 60
η ( %)
(Note 3)
Part Number GS5806ES5-1.8
SOT23-5 Top Mark Temp Range A3XY -40° C to +85° C
Thermal Resistance
Package SOT23-5
:
Ө
JC
Ө
JA
220° C/W
110° C/W
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula: GS5806: TJ = TA + (PD)x(220° C/W) Note 3: Thermal Resistance is specified with approximately 1 square of 1 oz copper. Note 4: XY = Manufacturing Date Code Note 5: For other output voltage versions, please contact with our sales representatives.
TEL:0755-27668758/29126058
web:

深圳市中广芯源科技有限公司
Electrical Characteristics
(V =V
IN RUN
GS5806
= 3.6V, TA = 25° C, unless otherwise noted.) Conditions V =0.5V or V
≤ 85° C
± 1
Note 5: 100% production test at +25° C.
Specifications over the temperature range are guaranteed by design and
TEL:0755-27668758/29126058
web:
Applications

Cellular and Smart Phones Microprocessors and DSP Core Supplies
Typical Application Circuit
η vs Io(VOUT=1.8V) 100 90 80 70 60
VIN=3.6V VIN=2.5V
FB FB IN
Parameter Input Voltage Range Input DC Supply Current Active Mode Shutdown Mode Regulated Feedback Voltage V Input Bias Current
MIN 2.5
OUT
TYP
MAX 6.5 400 1.0 0.6120 0.6135 0.6180 ± 30
V =3V, V =0.5V or V
IN FB
Duty Cycle <35% V =0.6V or V =100%
FB OUT
OUT
=90%
0.8 1.2
1.00 1.5 0.40 0.35
1.25 1.8 0.45 0.40 ± 1 0.6
A MHz Ω Ω µA V µA
I I
SW SW
= 300mA = -300mA = 0V, V
TEL:0755-27668758/29126058
web:

深圳市中广芯源科技有限公司
Absolute Maximum Rating
Input Supply Voltage............................ -0.3V to +7V RUN, V Voltages..................... .......-0.3V to V +0.3V SW Voltages..................................-0.3V to V +0.3V P-Channel Switch Source Current (DC)..........1000mA N-Channel Switch Sink Current (DC).............1000mA Peak SW Sink and Source Current......................1.4A
(Note 2)
Package/Order Information Adjustable Output Version: Fixed Output Versions:
Part Number GS5806ES5-ADJ
SOT23-5 Top Mark Temp Range (Note 4) -40° C to +85° C A1XY
unit V µA µA V V V nA %/V V V % %
=90% 0.5880
V =0V, V =4.2V T = +25° C
A A
300 0.1 0.6000 0.6000 0.6000 0.5865 0.5820
T = 0° C≤T
A
A A

≤ 85° C ≤ 85° C
T = -40° C≤T

Wireless and DSL Modems PDAs MP3 / MP4 /MPM Player Digital Still and Video Cameras Portable Instruments
Features

High Efficiency: Up to 96% 1.5MHz Constant Switching Frequency 700mA Output Current at VIN=3V Integrated Main switch and synchronous rectifier. No Schottky Diode Required 2.5V to 6.5V Input Voltage Range Output Voltage as Low as 0.6V 100% Duty Cycle in Dropout Quiescent Current: 300µA(input < 4.2V) Slope Compensated Current Mode Control for Excellent Line and Load Transient Response Short Circuit Protection <1uA Shutdown Current Space Saving 5-Pin SOT23 package
FB
V
FB
= 0.65V 0.04
A A
Reference Voltage Line Regulation Regulated Output Voltage Output Voltage Line Regulation Output Voltage Load Regulation Peak Inductor Current Oscillator Frequency R of P-CH MOSFET
深圳市中广芯源科技有限公司
GS5806
1.5MHz, 700mA Synchronous Step-Down Converter
Description
T he GS 5806 is a high efficiency mo no lithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages, such as 1.2V, 1.5V, 1.8V, etc. Supply current with no load is 300uA and drops to <1uA in shutdown. The 2.5V to 6.5V input voltage range makes the GS5806 ideally suited for single Li-Ion, two to four AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The GS5806 is available in a small SOT package .